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[[folder:Wicks]]
!! The physical laws/geography of two dimensions merge or replace each other
!! The physical laws/geography of two dimensions merge or replace each other
to:
!! The physical laws/geography of two dimensions merge or replace each
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!! People move between one dimension and the other, without the dimensions themselves merging
to:
!! People move between one dimension and the other, without the dimensions themselves mergingmerging:
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!!Other -- context present, but don't fit other patterns
to:
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!! ZCE/unclear/random potholes -- everything that isn't clear about saying what's happening
to:
!! ZCE/unclear/random potholes -- everything that isn't clear about saying what's happeninghappening:
As for the crosswicks:
[[folder:Crosswicks]]
!! The physical laws/geography of two dimensions merge or replace each other
* {{Defictionalization}}: Not to be confused with {{Deconstruction}}, or with RealityBleed or TheFourthWallWillNotProtectYou (which are story devices about the fictional world blurring with real ones).
* Characters.ArkhamHorror: Atlach-Nacha draws a web between our world and DreamLand, which damages barriers between worlds (and makes seals nearly useless, since they would not protect against gates' openings). If she ever finishes, she would invade Earth directly. This also prevents any Mystic mythos from playing.
* ComicBook.{{DCRWBY}}: Gotham City's fear and despair is so bad that the Grimm were able to sense it and cross over. This is causing people in the DC Universe to develop Semblances while Team RWBY's looks and weapons are changed to match how it would be if they acted in the DC Universe. Upon seeing Joker and the Nuckelavee fuse with each other, Ruby comes to the conclusion that it's not just a bleed between worlds, it's a full-on [[MergedReality merger]].
* ComicBook.JusticeLeagueInfinity: UnwittingInstigatorOfDoom: Amazo's journey in self-discovery leads him to the Mirrored Room at the edge of the universe, and tampering with the fragments ends up causing the Earths to RealityBleed with each other.
* ComicBook.SecretWars2015: MergedReality: A cross between this and RealityBleed, as various alternate dimensions are fused together into a new Battleworld. '''20'''
* DarthWiki.EndlessGrid: The game consists of your player, Grid Hunter, exploring through an endlessly shifting grid of {{Reality Bleed}}ing domains, fighting the hostile denizens within each of them, and assimilating their weapons as your own.
* Fanfic.FindAWayToStartAgain: The story is kicked off by a temple that keeps switching places between Earth and Amphibia. It's suggested that previous dimensional incursions, like Frogvasion and Weirdmageddon, have made it easier for such events to occur.
* Fridge.PersonaQ2NewCinemaLabyrinth: The Theater District can RealityBleed if not taken care of. So if the party just leaves the district, it will enroach into Tokyo in ''Persona 5'' and go into conflict with Yaldabaoth. Since the two gods have conflicting beliefs, it means that Enlil will square off with Yaldabaoth and the results are ''not good''.
* Literature.TheCityOfNever: The City's slowly leaking into Onolo, and as it does so, odd things start to happen to Onolo, culminating in it being anchored out of temporal existence. This had previously happened with St. Howard's.
* MarvelCinematicUniverse.TropesGToR: ''Agents of S.H.I.E.L.D.'' Seasons 5 and 6 involve a "fear dimension" that's '''[[RealityBleed seeping into Earth]]''' and causing worst fears to come to life.
* Pathfinder.TropesQToZ: SealTheBreach: Golarion suffers from the Worldwound, a nation-spanning {{Hellgate}} and [[TheLegionsOfHell demon-infested]] RealityBleed. Five crusades are mobilized to fight back its advance, and in the climax of the Wrath of the Righteous adventure path, the PlayerParty can [[spoiler:kill the {{Demon Lord|sAndArchdevils}} responsible and [[SupernaturalSealing ritually seal]] the Worldwound forever, which is what canonically happens]].
* Quotes.WhatTheHellHero:
-->'''Freya:''' If the [[NamesToRunAwayFromReallyFast Hound of Hel]] is loose, '''[[RealityBleed he'll chew through the fabric of the realms]]'''. [[ZombieApocalypse Hel-Walkers are just the beginning]]! ''What were you thinking?!''
* Sandbox.CharactersAPracticalGuideToEvil: KnowWhenToFoldEm: Repeatedly:
** First, when the Dread Empress Triumphant conquered the rest of Calernia, he chose to cut his losses and '''[[RealityBleed phase]]''' the Golden Bloom into Arcadia.
* Series.{{Debris}}: Overuse of the debris in episode 9 causes this effect. At first, the effect is only present in mirrors, briefly showing images of alternate universes. As the effect progresses, warped space manifests showing the other realities in real time.
* TabletopGame.{{Torg}}: The game's hook is that different dimensions are seeping in Earth's, and, in the territory they conquer, the laws of reality to change to those of the invading dimension.
* UsefulNotes.{{Kabbalah}}: ''VideoGame/Persona5'': Mementos, a sprawling dungeon located underneath Shibuya and created from the distorted desires of the masses, is divided into several "paths," each named after the Qliphoth as given by William G. Gray in ''The Tree of Evil'' (Qimranut, Aiyatsbus, Chemdah, Kaitul, Akzeriyyuth, Adyeshach, Sheriruth, Iweleth). When Yaldabaoth, the God of Control manifested from mankind's sloth, fully awakens from within the depths of Mementos and '''[[RealityBleed fuses it with reality]]''', this results in TheVeryDefinitelyFinalDungeon: the Qliphoth World. [[OddNameOut The sole exception to the Qliphothic theme]] is Da'at (introduced in ''[[UpdatedRerelease Royal]]''), instead taken from the unison of the ten sefirot and tying into [[spoiler:Maruki's UtopiaJustifiesTheMeans-fueled [[RewritingReality override of humanity's cognition]] during the third semester]].
* VideoGame.{{Fortnite}}: It's not just Marvel characters crossing over during Chapter 2 Season 4. Landmarks from the Marvel universe are gradually appearing on the island, seemingly ripped out in spherical chunks, with Rifts manifesting nearby.
!! People move between one dimension and the other, without the dimensions themselves merging:
* NeverTheSelvesShallMeet: ''ComicBook/MyLittlePonyFriendshipIsMagicIDW'': The series has an entire arc exploring the risks of this. Having too many counterparts in one universe throws off the balance between them, disrupting both and causing a RealityBleed. '''(Doesn't specify what a RealityBleed is, only explict subject is the movement of individuals.)'''
* AdaptationalBadass.FanWorksCrossovers: ''Fanfic/CoreLine'': This is the essential fate of anybody who enters the post-[[TheMultiverse multiversal]] RealityBleed WorldOfBadass of the setting. They all [[HadToBeSharp have to become sharp]], or risk dying (at worst). And as such, whenever any two characters of two differing fandoms clash (''any two''), it's up in the air who will win (if they are not cut down mid-fight by a BadassBystander who's had enough).
* Fanfic.SonicAndEquestriaGirls: Twilight's device causes openings to Equestria. When it happens when she's Midnight Sparkle, it opens a whole to Moebius and allows Anarchy Beryl to come in.
* Fanfic.ThePinesAndTheBoilingIsles: Given that this takes place shortly after the Frog-Vasion where a robotic army descended on a major city, the Pines and company are rather concerned that too many extra-dimension breaches could cause another Weirdmageddon-level even, which is part of why they decide to investigate Gravesfield.
!! Different time periods overlay with one another:
* Fanfic.DarthVaderShatteredGalaxy: Plagueis speculates that the TimeCrash on the Heinsnake planet was caused by this -- since Vader was essentially repeating his actions there in the previous timeline, those future events started imposing themselves on the present.
* Recap.BigFinishDoctorWho040Jubilee: The Doctor realizes that the presence of himself, or rather ''both'' versions of himself, Evelyn and the TARDIS is causing 1903 and 2003 to slowly bleed into each other.
!! Fictional entities enter reality:
* PoliticalCorrectnessIsEvil: In ''Anime/DigimonTamers 2021'', after RealityBleed between the Internet and real world occurs once more the Tamers have to fight the avatar of "political correctness" itself, who has the special attack "Cancel Culture". The story goes on to accuse political correctness of forcing people to conform to a single viewpoint while "censoring real news to replace with fake news".
* Creator.KimNewman: In "The Original Doctor Shade" an author is hired to revamp an old franchise. However, the original versions of the characters start intruding into the real world and aren't happy with his changes...
* Film.Monster1999: Seems to be part of the situation going on: the Monster escaped from the movies into the real world, but brought the rules of a BMovie along with it whenever it's active. Lloyd implies if it were to ever win, it'll be able to entirely escape movie land.
* Literature.AegyptCycle: The human race's capacity for mythologizing -- and for creating fantastic sources of myth like the "Aegypt" of the title -- can slowly turn those myths into a kind of reality.
* Recap.SouthParkS18E9Rehash: Cartman's meta-commentary videos allow his [=CartmanBrah=] commenter window to pop up in The Wendy Williams Show, as well as around South Park.
* StrangeMindsThinkAlike.LiveActionTV: In "Back To Earth", the sci-fi shop owner is unfazed to have [[RefugeeFromTVLand fictional characters]] walk into his shop, because '''[[RealityBleed reality incursions]]''' are very common this time of year (Rimmer: "Oh good, he's a nutter"). He phones the head of the Red Dwarf Fan Club for them and says "Yeah, reality incursion... Yeah, that's what I said..."
* VideoGame.StrongBadsCoolGameForAttractivePeople: Strong Bad's malfunctioning Trogdor cabinet leads to Free Country USA being combined with the worlds of assorted {{Fictional Video Game}}s.
* VideoGame.Persona2:
** What started this whole mess.
** With the "rumors become reality" effect going around, ''everyone'' capable of spreading rumors becomes this. Both the good guys ''and'' the bad guys utilize this in story and in gameplay (in ''Eternal Punishment'', for example, if you piss off a demon while equipped with an ultimate weapon, they will spread a rumor that greatly weakens it). Later in the games, Lisa (IS) and Ulala (EP) laments not being able to tell what's real anymore. PlayedForLaughs in side material, namely the anthology manga.
!! A RealityWarper changes things in one reality:
* RealityWarpingIsNotAToy: ''Literature/TheEyesOfKidMidas'' has an [[OrdinaryHighSchoolStudent Ordinary Middle School Student]] gain access to {{Reality Warp|er}}ing powers. It's all fun and games until he forgets himself and tells his rival to [[RhetoricalRequestBlunder "Go to Hell."]] Then the RealityBleed starts to set in. And it turns out to be AddictiveMagic. And then [[PowerIncontinence he starts to lose control]]. And ''then'' he accidentally [[spoiler:[[TimeStop stops time]]]] right before [[spoiler:the glasses break]].
* SorcerersApprenticePlot: In ''Literature/TheEyesOfKidMidas'', Kevin Midas borrows RealityWarping sunglasses from a mountain (a stand-in for God). '''[[RealityBleed Things get pretty screwed up]]''', but in the end, [[spoiler:he gives the glasses back to the mountain]] and everything works out okay.
* Characters.WormBrocktonBayGangs: A former inmate in the same asylum as Burnscar, her power allows her to change the terrain surrounding her into '''[[RealityBleed a projection of other places]]'''. The power grows stronger the longer she remains in an area, contracting again as soon as she leaves the affected zone.
!! Other -- context present, but don't fit other patterns:
* Recap.StrongBadEmailE122Dreamail: SuddenlyVoiced: The Lappy is able to talk in Strong Bad's dream e-mail sequences. Oddly enough, '''[[RealityBleed this would later be seen as an actual ability of the Lappy]]'''.
* FutureBadass: A minor character in WebAnimation/HomestarRunner is a little green alien named Nebulon who is most know for being an object of ridicule in a "Powered By The Cheat" cartoon: "Get out of here, Nebulon! No one likes your style!" In ''VideoGame/{{Stinkoman20x6}}'', Nebulon is now several hundreds times larger, able to shoot energy balls, and is the king of the moon. But after beating him in a boss battle, 1-Up still takes the time to mock him. Due to '''[[RealityBleed the fluid nature of the Homestar Runner universe]]''', he is both an alternate version and a future version, with the manual even saying that he's been working out, making it clear he is the same character. '''(Seems to be talking about the work's loose contunuity)'''
* TimePolice: In ''WesternAnimation/SpiderManAcrossTheSpiderVerse'', ComicBook/SpiderMan2099 forms a massive AllianceOfAlternates to protect spacetime from RealityBleed as well as ensure that no universe suffers from a RealityBreakingParadox as a result of someone recklessly changing history. '''(Not clear if it's talking about the "fusion of worlds" variant, the "fusion of time periods in one world" variant, or both.)'''
!! ZCE/unclear/random potholes -- everything that isn't clear about saying what's happening:
* ItsALongStory: In ''WesternAnimation/SpiderManIntoTheSpiderVerse'', Noir describes his arrival along with Peni and Spider-Ham as this:
-->'''Noir:''' Well, it's kind of a long story\\
''(quickened flashback to the RealityBleed event, cutting to them thrown against a billboard)''\\
'''Noir:''' Maybe not that long.
* StoryBreakerPower: [...] This isn't getting into the fact that this is only describing the Universal Will in her "human" form. Before she became Ariels, the Universal Will merely coming into contact with Justice from within [[GeniusLoci the]] [[EldritchLocation Backyard]] inflicted MindRape upon Justice and caused a RealityBleed that would've ran unchecked if That Man didn't take control of Justice and manually fire her Gamma Ray upon Japan. [...]
* Awesome.OmniscientReadersViewpoint: (Note: No description, just a quote.)
-->'''Dokja:''' "I watched every scene intently. It was like Neo in the Franchise/TheMatrix, who suspected reality. Observing, questioning, and then eventually being convinced…I had to admit it. I didn't know the reason why, but there were no doubts about it. 'Ways of Survival' had become a '''[[RealityBleed reality.]]'''"
* Characters.HomestarRunnerOther: They started off as a random band name thrown out by Strong Bad in one of his emails before becoming a full-fledged part of the universe. '''(In-universe {{Defictionalization}}? Not sure.)'''
* Characters.MiraculousLadybugAkumatizedVillainsSeason1: DimensionLord: Has a PrisonDimension to hold his photographed victims. Cat Noir ends up having to invoke RealityBleed via Cataclysm to free everyone.
* Characters.PersonaQ2NewCinemaLabyrinth: ObliviouslyEvil: She has ''no freaking clue'' she's more of a hindrance than a help to the people in her LotusEaterMachine. She's also unaware that gathering too many people into her world will cause a RealityBleed similar to Yaldabaoth's in ''Persona 5'' and Izanami from ''Persona 4'', putting the real world in danger; the only difference between the three is that Yaldabaoth and Izanami are doing it ''on purpose'' while Enlil is not. Additionally, while Yaldabaoth induces RealityBleed out of clear malicious intent, Izanami is induces it out of misguided benevolence while RealityBleed was merely a byproduct of Enlil's plan.
* Characters.Supermarioglitchy4sSuperMario64BloopersMario: GodzillaThreshold:
** In "The Grand Mario Hotel", the [[TheMultiverse other Marios]] end up seeing him as so LethallyStupid that they decide to team up to kill him. To put things in perspective -- one of them is Bootleg Mario from "THE BOOTLEG DIMENSION", someone who once caused a RealityBleed SuicidalCosmicTemperTantrum that Mario had to stop.
* Fanfic.OfficerMisako: A natural consequence of the Reset.
* GranblueFantasy.TropesRToZ: According to Fraux, this could be the "worst possible outcome" should the Arcarum Primal Beasts succeed in creating a new world.
* Literature.{{Idlewild}}: How students' domains interact when the students make personal calls.
* Literature.TheThreeStigmataOfPalmerEldritch: The drug "Chew-Z", discovered by Eldritch in the Prox system, seems to have this effect, although the book is deliberately ambiguous.
* NightmareFuel.Persona5: The public's SanitySlippage is almost insane in this game compared to previous ''Persona'' installments. They literally don't treat you as a human being from the very beginning, but after you best the impersonator Medjed they begin to worship you like gods while the government is trying to outright frame you. Once Okumura dies, all hell breaks loose as the masses begin to believe that you are an EldritchAbomination and an unforgivable criminal. Think that it gets better after you beat Shido? ''Wrong,'' as the public literally believes you don't exist, and the breaking point is that when Mementos causes a RealityBleed, nobody seems to notice it. Once they see it after you kill off the Archangel Shadows, it's already too late.
* Recap.FateGrandOrderEvent21AllTheStatesmen: Chapter 4, where Goddess Columbia reveals the truth about what the Singularity is, the RealityBleed as a result, and how Bunyan could very well end the universe.
[[/folder]]
* Merger of worlds: 17/50 = 34%
* People move between worlds: 4/50 = 8%
* Merger of time periods: 2/50 = 4%
* RefugeeFromTvLand: 8/50 = 16%
* RealityWarper: 3/50 = 6%
* Other: 3/50 = 6%
* ZCE: 13/50 = 26%
Conceptual cohesion is weakest here overall, and includes concepts covered by other existing tropes. As a rule, the single most common concept is the fusion/crossing of different worlds, with most examples not differentiating how gradual or sudden this is. There are also a lot of low- to no-context examples, mostly in the form of undescriptive potholes and of wicks being slotted into descriptions without bothering to explain what's going on.
[[folder:Crosswicks]]
!! The physical laws/geography of two dimensions merge or replace each other
* {{Defictionalization}}: Not to be confused with {{Deconstruction}}, or with RealityBleed or TheFourthWallWillNotProtectYou (which are story devices about the fictional world blurring with real ones).
* Characters.ArkhamHorror: Atlach-Nacha draws a web between our world and DreamLand, which damages barriers between worlds (and makes seals nearly useless, since they would not protect against gates' openings). If she ever finishes, she would invade Earth directly. This also prevents any Mystic mythos from playing.
* ComicBook.{{DCRWBY}}: Gotham City's fear and despair is so bad that the Grimm were able to sense it and cross over. This is causing people in the DC Universe to develop Semblances while Team RWBY's looks and weapons are changed to match how it would be if they acted in the DC Universe. Upon seeing Joker and the Nuckelavee fuse with each other, Ruby comes to the conclusion that it's not just a bleed between worlds, it's a full-on [[MergedReality merger]].
* ComicBook.JusticeLeagueInfinity: UnwittingInstigatorOfDoom: Amazo's journey in self-discovery leads him to the Mirrored Room at the edge of the universe, and tampering with the fragments ends up causing the Earths to RealityBleed with each other.
* ComicBook.SecretWars2015: MergedReality: A cross between this and RealityBleed, as various alternate dimensions are fused together into a new Battleworld. '''20'''
* DarthWiki.EndlessGrid: The game consists of your player, Grid Hunter, exploring through an endlessly shifting grid of {{Reality Bleed}}ing domains, fighting the hostile denizens within each of them, and assimilating their weapons as your own.
* Fanfic.FindAWayToStartAgain: The story is kicked off by a temple that keeps switching places between Earth and Amphibia. It's suggested that previous dimensional incursions, like Frogvasion and Weirdmageddon, have made it easier for such events to occur.
* Fridge.PersonaQ2NewCinemaLabyrinth: The Theater District can RealityBleed if not taken care of. So if the party just leaves the district, it will enroach into Tokyo in ''Persona 5'' and go into conflict with Yaldabaoth. Since the two gods have conflicting beliefs, it means that Enlil will square off with Yaldabaoth and the results are ''not good''.
* Literature.TheCityOfNever: The City's slowly leaking into Onolo, and as it does so, odd things start to happen to Onolo, culminating in it being anchored out of temporal existence. This had previously happened with St. Howard's.
* MarvelCinematicUniverse.TropesGToR: ''Agents of S.H.I.E.L.D.'' Seasons 5 and 6 involve a "fear dimension" that's '''[[RealityBleed seeping into Earth]]''' and causing worst fears to come to life.
* Pathfinder.TropesQToZ: SealTheBreach: Golarion suffers from the Worldwound, a nation-spanning {{Hellgate}} and [[TheLegionsOfHell demon-infested]] RealityBleed. Five crusades are mobilized to fight back its advance, and in the climax of the Wrath of the Righteous adventure path, the PlayerParty can [[spoiler:kill the {{Demon Lord|sAndArchdevils}} responsible and [[SupernaturalSealing ritually seal]] the Worldwound forever, which is what canonically happens]].
* Quotes.WhatTheHellHero:
-->'''Freya:''' If the [[NamesToRunAwayFromReallyFast Hound of Hel]] is loose, '''[[RealityBleed he'll chew through the fabric of the realms]]'''. [[ZombieApocalypse Hel-Walkers are just the beginning]]! ''What were you thinking?!''
* Sandbox.CharactersAPracticalGuideToEvil: KnowWhenToFoldEm: Repeatedly:
** First, when the Dread Empress Triumphant conquered the rest of Calernia, he chose to cut his losses and '''[[RealityBleed phase]]''' the Golden Bloom into Arcadia.
* Series.{{Debris}}: Overuse of the debris in episode 9 causes this effect. At first, the effect is only present in mirrors, briefly showing images of alternate universes. As the effect progresses, warped space manifests showing the other realities in real time.
* TabletopGame.{{Torg}}: The game's hook is that different dimensions are seeping in Earth's, and, in the territory they conquer, the laws of reality to change to those of the invading dimension.
* UsefulNotes.{{Kabbalah}}: ''VideoGame/Persona5'': Mementos, a sprawling dungeon located underneath Shibuya and created from the distorted desires of the masses, is divided into several "paths," each named after the Qliphoth as given by William G. Gray in ''The Tree of Evil'' (Qimranut, Aiyatsbus, Chemdah, Kaitul, Akzeriyyuth, Adyeshach, Sheriruth, Iweleth). When Yaldabaoth, the God of Control manifested from mankind's sloth, fully awakens from within the depths of Mementos and '''[[RealityBleed fuses it with reality]]''', this results in TheVeryDefinitelyFinalDungeon: the Qliphoth World. [[OddNameOut The sole exception to the Qliphothic theme]] is Da'at (introduced in ''[[UpdatedRerelease Royal]]''), instead taken from the unison of the ten sefirot and tying into [[spoiler:Maruki's UtopiaJustifiesTheMeans-fueled [[RewritingReality override of humanity's cognition]] during the third semester]].
* VideoGame.{{Fortnite}}: It's not just Marvel characters crossing over during Chapter 2 Season 4. Landmarks from the Marvel universe are gradually appearing on the island, seemingly ripped out in spherical chunks, with Rifts manifesting nearby.
!! People move between one dimension and the other, without the dimensions themselves merging:
* NeverTheSelvesShallMeet: ''ComicBook/MyLittlePonyFriendshipIsMagicIDW'': The series has an entire arc exploring the risks of this. Having too many counterparts in one universe throws off the balance between them, disrupting both and causing a RealityBleed. '''(Doesn't specify what a RealityBleed is, only explict subject is the movement of individuals.)'''
* AdaptationalBadass.FanWorksCrossovers: ''Fanfic/CoreLine'': This is the essential fate of anybody who enters the post-[[TheMultiverse multiversal]] RealityBleed WorldOfBadass of the setting. They all [[HadToBeSharp have to become sharp]], or risk dying (at worst). And as such, whenever any two characters of two differing fandoms clash (''any two''), it's up in the air who will win (if they are not cut down mid-fight by a BadassBystander who's had enough).
* Fanfic.SonicAndEquestriaGirls: Twilight's device causes openings to Equestria. When it happens when she's Midnight Sparkle, it opens a whole to Moebius and allows Anarchy Beryl to come in.
* Fanfic.ThePinesAndTheBoilingIsles: Given that this takes place shortly after the Frog-Vasion where a robotic army descended on a major city, the Pines and company are rather concerned that too many extra-dimension breaches could cause another Weirdmageddon-level even, which is part of why they decide to investigate Gravesfield.
!! Different time periods overlay with one another:
* Fanfic.DarthVaderShatteredGalaxy: Plagueis speculates that the TimeCrash on the Heinsnake planet was caused by this -- since Vader was essentially repeating his actions there in the previous timeline, those future events started imposing themselves on the present.
* Recap.BigFinishDoctorWho040Jubilee: The Doctor realizes that the presence of himself, or rather ''both'' versions of himself, Evelyn and the TARDIS is causing 1903 and 2003 to slowly bleed into each other.
!! Fictional entities enter reality:
* PoliticalCorrectnessIsEvil: In ''Anime/DigimonTamers 2021'', after RealityBleed between the Internet and real world occurs once more the Tamers have to fight the avatar of "political correctness" itself, who has the special attack "Cancel Culture". The story goes on to accuse political correctness of forcing people to conform to a single viewpoint while "censoring real news to replace with fake news".
* Creator.KimNewman: In "The Original Doctor Shade" an author is hired to revamp an old franchise. However, the original versions of the characters start intruding into the real world and aren't happy with his changes...
* Film.Monster1999: Seems to be part of the situation going on: the Monster escaped from the movies into the real world, but brought the rules of a BMovie along with it whenever it's active. Lloyd implies if it were to ever win, it'll be able to entirely escape movie land.
* Literature.AegyptCycle: The human race's capacity for mythologizing -- and for creating fantastic sources of myth like the "Aegypt" of the title -- can slowly turn those myths into a kind of reality.
* Recap.SouthParkS18E9Rehash: Cartman's meta-commentary videos allow his [=CartmanBrah=] commenter window to pop up in The Wendy Williams Show, as well as around South Park.
* StrangeMindsThinkAlike.LiveActionTV: In "Back To Earth", the sci-fi shop owner is unfazed to have [[RefugeeFromTVLand fictional characters]] walk into his shop, because '''[[RealityBleed reality incursions]]''' are very common this time of year (Rimmer: "Oh good, he's a nutter"). He phones the head of the Red Dwarf Fan Club for them and says "Yeah, reality incursion... Yeah, that's what I said..."
* VideoGame.StrongBadsCoolGameForAttractivePeople: Strong Bad's malfunctioning Trogdor cabinet leads to Free Country USA being combined with the worlds of assorted {{Fictional Video Game}}s.
* VideoGame.Persona2:
** What started this whole mess.
** With the "rumors become reality" effect going around, ''everyone'' capable of spreading rumors becomes this. Both the good guys ''and'' the bad guys utilize this in story and in gameplay (in ''Eternal Punishment'', for example, if you piss off a demon while equipped with an ultimate weapon, they will spread a rumor that greatly weakens it). Later in the games, Lisa (IS) and Ulala (EP) laments not being able to tell what's real anymore. PlayedForLaughs in side material, namely the anthology manga.
!! A RealityWarper changes things in one reality:
* RealityWarpingIsNotAToy: ''Literature/TheEyesOfKidMidas'' has an [[OrdinaryHighSchoolStudent Ordinary Middle School Student]] gain access to {{Reality Warp|er}}ing powers. It's all fun and games until he forgets himself and tells his rival to [[RhetoricalRequestBlunder "Go to Hell."]] Then the RealityBleed starts to set in. And it turns out to be AddictiveMagic. And then [[PowerIncontinence he starts to lose control]]. And ''then'' he accidentally [[spoiler:[[TimeStop stops time]]]] right before [[spoiler:the glasses break]].
* SorcerersApprenticePlot: In ''Literature/TheEyesOfKidMidas'', Kevin Midas borrows RealityWarping sunglasses from a mountain (a stand-in for God). '''[[RealityBleed Things get pretty screwed up]]''', but in the end, [[spoiler:he gives the glasses back to the mountain]] and everything works out okay.
* Characters.WormBrocktonBayGangs: A former inmate in the same asylum as Burnscar, her power allows her to change the terrain surrounding her into '''[[RealityBleed a projection of other places]]'''. The power grows stronger the longer she remains in an area, contracting again as soon as she leaves the affected zone.
!! Other -- context present, but don't fit other patterns:
* Recap.StrongBadEmailE122Dreamail: SuddenlyVoiced: The Lappy is able to talk in Strong Bad's dream e-mail sequences. Oddly enough, '''[[RealityBleed this would later be seen as an actual ability of the Lappy]]'''.
* FutureBadass: A minor character in WebAnimation/HomestarRunner is a little green alien named Nebulon who is most know for being an object of ridicule in a "Powered By The Cheat" cartoon: "Get out of here, Nebulon! No one likes your style!" In ''VideoGame/{{Stinkoman20x6}}'', Nebulon is now several hundreds times larger, able to shoot energy balls, and is the king of the moon. But after beating him in a boss battle, 1-Up still takes the time to mock him. Due to '''[[RealityBleed the fluid nature of the Homestar Runner universe]]''', he is both an alternate version and a future version, with the manual even saying that he's been working out, making it clear he is the same character. '''(Seems to be talking about the work's loose contunuity)'''
* TimePolice: In ''WesternAnimation/SpiderManAcrossTheSpiderVerse'', ComicBook/SpiderMan2099 forms a massive AllianceOfAlternates to protect spacetime from RealityBleed as well as ensure that no universe suffers from a RealityBreakingParadox as a result of someone recklessly changing history. '''(Not clear if it's talking about the "fusion of worlds" variant, the "fusion of time periods in one world" variant, or both.)'''
!! ZCE/unclear/random potholes -- everything that isn't clear about saying what's happening:
* ItsALongStory: In ''WesternAnimation/SpiderManIntoTheSpiderVerse'', Noir describes his arrival along with Peni and Spider-Ham as this:
-->'''Noir:''' Well, it's kind of a long story\\
''(quickened flashback to the RealityBleed event, cutting to them thrown against a billboard)''\\
'''Noir:''' Maybe not that long.
* StoryBreakerPower: [...] This isn't getting into the fact that this is only describing the Universal Will in her "human" form. Before she became Ariels, the Universal Will merely coming into contact with Justice from within [[GeniusLoci the]] [[EldritchLocation Backyard]] inflicted MindRape upon Justice and caused a RealityBleed that would've ran unchecked if That Man didn't take control of Justice and manually fire her Gamma Ray upon Japan. [...]
* Awesome.OmniscientReadersViewpoint: (Note: No description, just a quote.)
-->'''Dokja:''' "I watched every scene intently. It was like Neo in the Franchise/TheMatrix, who suspected reality. Observing, questioning, and then eventually being convinced…I had to admit it. I didn't know the reason why, but there were no doubts about it. 'Ways of Survival' had become a '''[[RealityBleed reality.]]'''"
* Characters.HomestarRunnerOther: They started off as a random band name thrown out by Strong Bad in one of his emails before becoming a full-fledged part of the universe. '''(In-universe {{Defictionalization}}? Not sure.)'''
* Characters.MiraculousLadybugAkumatizedVillainsSeason1: DimensionLord: Has a PrisonDimension to hold his photographed victims. Cat Noir ends up having to invoke RealityBleed via Cataclysm to free everyone.
* Characters.PersonaQ2NewCinemaLabyrinth: ObliviouslyEvil: She has ''no freaking clue'' she's more of a hindrance than a help to the people in her LotusEaterMachine. She's also unaware that gathering too many people into her world will cause a RealityBleed similar to Yaldabaoth's in ''Persona 5'' and Izanami from ''Persona 4'', putting the real world in danger; the only difference between the three is that Yaldabaoth and Izanami are doing it ''on purpose'' while Enlil is not. Additionally, while Yaldabaoth induces RealityBleed out of clear malicious intent, Izanami is induces it out of misguided benevolence while RealityBleed was merely a byproduct of Enlil's plan.
* Characters.Supermarioglitchy4sSuperMario64BloopersMario: GodzillaThreshold:
** In "The Grand Mario Hotel", the [[TheMultiverse other Marios]] end up seeing him as so LethallyStupid that they decide to team up to kill him. To put things in perspective -- one of them is Bootleg Mario from "THE BOOTLEG DIMENSION", someone who once caused a RealityBleed SuicidalCosmicTemperTantrum that Mario had to stop.
* Fanfic.OfficerMisako: A natural consequence of the Reset.
* GranblueFantasy.TropesRToZ: According to Fraux, this could be the "worst possible outcome" should the Arcarum Primal Beasts succeed in creating a new world.
* Literature.{{Idlewild}}: How students' domains interact when the students make personal calls.
* Literature.TheThreeStigmataOfPalmerEldritch: The drug "Chew-Z", discovered by Eldritch in the Prox system, seems to have this effect, although the book is deliberately ambiguous.
* NightmareFuel.Persona5: The public's SanitySlippage is almost insane in this game compared to previous ''Persona'' installments. They literally don't treat you as a human being from the very beginning, but after you best the impersonator Medjed they begin to worship you like gods while the government is trying to outright frame you. Once Okumura dies, all hell breaks loose as the masses begin to believe that you are an EldritchAbomination and an unforgivable criminal. Think that it gets better after you beat Shido? ''Wrong,'' as the public literally believes you don't exist, and the breaking point is that when Mementos causes a RealityBleed, nobody seems to notice it. Once they see it after you kill off the Archangel Shadows, it's already too late.
* Recap.FateGrandOrderEvent21AllTheStatesmen: Chapter 4, where Goddess Columbia reveals the truth about what the Singularity is, the RealityBleed as a result, and how Bunyan could very well end the universe.
[[/folder]]
* Merger of worlds: 17/50 = 34%
* People move between worlds: 4/50 = 8%
* Merger of time periods: 2/50 = 4%
* RefugeeFromTvLand: 8/50 = 16%
* RealityWarper: 3/50 = 6%
* Other: 3/50 = 6%
* ZCE: 13/50 = 26%
Conceptual cohesion is weakest here overall, and includes concepts covered by other existing tropes. As a rule, the single most common concept is the fusion/crossing of different worlds, with most examples not differentiating how gradual or sudden this is. There are also a lot of low- to no-context examples, mostly in the form of undescriptive potholes and of wicks being slotted into descriptions without bothering to explain what's going on.
Changed line(s) 299,300 (click to see context) from:
* Merge. That's the main one.
* WhenDimensionsCollide has the better name -- neither of the two is really focused on a gradual "bleed"; abrupt, sudden, and sporadic invasions happen plenty.
* WhenDimensionsCollide has the better name -- neither of the two is really focused on a gradual "bleed"; abrupt, sudden, and sporadic invasions happen plenty.
to:
* Merge. That's the main one.
WDC and RB should be merged.
* WhenDimensionsCollide has the better name -- neither of the two is really focused on a gradual "bleed"; abrupt, sudden, and sporadic invasions happen plenty. Additionally, the more extreme focus issues of RealityBleed lead me to think that it's inviting confusion in people reading the name
* WhenDimensionsCollide has the better name -- neither of the two is really focused on a gradual "bleed"; abrupt, sudden, and sporadic invasions happen plenty. Additionally, the more extreme focus issues of RealityBleed lead me to think that it's inviting confusion in people reading the name
Added DiffLines:
As an alternative option, the looser focus and vaguer use of RealityBleed may make it more advisable to dismabiguate it rather than turn it into a redirect. In that case, it should probably be disambiguated between WhenDimensionsCollide, AllOfTimeAtOnce, MergedReality, and perhaps RealityWarper and RefugeeFromTVLand.
Is there an issue? Send a MessageReason:
None
!! The physical laws/geography of two dimensions merge or replace each other
Deleted line(s) 92 (click to see context) :
* AnotherDimension: Listed as one of the "Types of Other Dimensions".
Deleted line(s) 94,96 (click to see context) :
* EarthIsABattlefield: ''Fanfic/{{Coreline}}'': WhenDimensionsCollide, the result is every bad guy in almost known work of fiction of humanity fighting against every good guy in almost every known work of fiction of humanity, with an awful lot of people stuck in the middle (and either self-enforcing "TookALevelInBadass" or die). This is a conflict that has gone through hot and cold cycles, with the "CHIMERA War" arc starting on ''Fanfic/CorelineOperationSnakeCharmer'' and ending on ''Fanfic/CorelineOperationEndgame'' being the latest "hot" period.
* ImmortalityField: Downplayed for Jumanji in ''Film/JumanjiWelcomeToTheJungle''. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], it remained as a [[AnotherDimension separate world]] that follows VideoGame logic.
* LayeredWorld: ''Franchise/{{Digimon}}'': The various works in the franchise have at minimum the mundane world and cyberspace in the form of the Digital World. ''Anime/DigimonAdventure'' and ''Anime/DigimonUniverseAppMonsters'' both have the Internet as a separate cyberspace dimension in itself, distinct from the Digital World and connecting it to the material world. Many ''Digimon'' settings also have various other dimensions and in-between worlds with varying degrees of association with the local cyberspace such as [[Anime/DigimonAdventure02 the Dark Ocean]], [[Anime/DigimonXrosWarsTheYoungHuntersWhoLeaptThroughTime the DigiQuartz]], and [[Anime/DigimonUniverseAppMonsters the AR-Fields]]. WhenDimensionsCollide is one of many consequences of these wildly different places coexisting.
* ImmortalityField: Downplayed for Jumanji in ''Film/JumanjiWelcomeToTheJungle''. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], it remained as a [[AnotherDimension separate world]] that follows VideoGame logic.
* LayeredWorld: ''Franchise/{{Digimon}}'': The various works in the franchise have at minimum the mundane world and cyberspace in the form of the Digital World. ''Anime/DigimonAdventure'' and ''Anime/DigimonUniverseAppMonsters'' both have the Internet as a separate cyberspace dimension in itself, distinct from the Digital World and connecting it to the material world. Many ''Digimon'' settings also have various other dimensions and in-between worlds with varying degrees of association with the local cyberspace such as [[Anime/DigimonAdventure02 the Dark Ocean]], [[Anime/DigimonXrosWarsTheYoungHuntersWhoLeaptThroughTime the DigiQuartz]], and [[Anime/DigimonUniverseAppMonsters the AR-Fields]]. WhenDimensionsCollide is one of many consequences of these wildly different places coexisting.
Changed line(s) 99,102 (click to see context) from:
* OnceMoreWithClarity: ''WesternAnimation/GravityFalls'': In "A Tale Of Two Stans", during [[spoiler: Ford’s]] explanation of his Portal project, the visuals and his narration suggest that he came up with it on his own before recruiting his friend [[spoiler: Fiddleford]] for help. But two episodes later in "The Last Mabelcorn", he reveals the full story: Bill Cipher was the one who gave Ford the idea for the Portal to give him answers to the origins of Gravity Falls’s weirdness. They worked together to the point where Ford let Bill possess him. Furthermore, in that episode, after Fiddleford accidentally gets sucked into the portal and comes out spouting gibberish, Ford seems to brush him off. However, "The Last Mabelcorn" also reveals that after that incident, he confronted Bill, who revealed '''[[WhenDimensionsCollide his true intentions]]''' to him.
* PatchworkMap: ''TabletopGame/{{Warhammer}} Fantasy'': The Chaos Wastes are a bit at odds with reality thanks to the Realms of Chaos '''[[WhenDimensionsCollide bleeding through from the Polar Gate]]''', so the GrimUpNorth is interspersed with regions of forest, desert, jungle, and even incongruous farmland. '''10'''
* RoyalBastard: ''VideoGame/TheElderScrollsIVOblivion'': After the Emperor and his legitimate children are assassinated, the last hope for the world is to rescue his illegitimate son Martin, who has lived a monastic life [[IAmWho with no knowledge of his heritage]]. Nonetheless, Martin's RoyalBlood is the [[RoyaltySuperpower only thing]] that can protect the world from '''[[WhenDimensionsCollide the realms of Oblivion]]'''.
* TheMagicGoesAway: ZigZagged in ''VideoGame/TheWitcher3WildHunt''. LastOfHisKind Geralt monologues about how there's not much of a place in the world for [[HunterOfMonsters Witchers]] anymore due to a dwindling monster population brought on by society advancing, as well as increased FantasticRacism towards them once the public began to feel less threatened by monsters culminating in the destruction of every Witcher school by UngratefulTownsfolk & renegade mages. However, despite what the public wants to believe there's still plenty of monsters out there, and plenty of work for Geralt. According to the novel ''Tales from the world of The Witcher'', TheMagicComesBack in a big way during the '''[[WhenDimensionsCollide Second Conjunction of the Spheres]]''' decades after the events of the game, leading to the [[OrderReborn establishment of new Witcher schools]] such as the School of the Crane.
* PatchworkMap: ''TabletopGame/{{Warhammer}} Fantasy'': The Chaos Wastes are a bit at odds with reality thanks to the Realms of Chaos '''[[WhenDimensionsCollide bleeding through from the Polar Gate]]''', so the GrimUpNorth is interspersed with regions of forest, desert, jungle, and even incongruous farmland. '''10'''
* RoyalBastard: ''VideoGame/TheElderScrollsIVOblivion'': After the Emperor and his legitimate children are assassinated, the last hope for the world is to rescue his illegitimate son Martin, who has lived a monastic life [[IAmWho with no knowledge of his heritage]]. Nonetheless, Martin's RoyalBlood is the [[RoyaltySuperpower only thing]] that can protect the world from '''[[WhenDimensionsCollide the realms of Oblivion]]'''.
* TheMagicGoesAway: ZigZagged in ''VideoGame/TheWitcher3WildHunt''. LastOfHisKind Geralt monologues about how there's not much of a place in the world for [[HunterOfMonsters Witchers]] anymore due to a dwindling monster population brought on by society advancing, as well as increased FantasticRacism towards them once the public began to feel less threatened by monsters culminating in the destruction of every Witcher school by UngratefulTownsfolk & renegade mages. However, despite what the public wants to believe there's still plenty of monsters out there, and plenty of work for Geralt. According to the novel ''Tales from the world of The Witcher'', TheMagicComesBack in a big way during the '''[[WhenDimensionsCollide Second Conjunction of the Spheres]]''' decades after the events of the game, leading to the [[OrderReborn establishment of new Witcher schools]] such as the School of the Crane.
to:
Deleted line(s) 104 (click to see context) :
* WeakerInTheRealWorld: In {{Dream Land}}s and {{Spirit World}}s, there is often an EldritchAbomination who is able to harness the limitless power that exists there. An omnipotent RealityWarper who can fully utilize the concept YourMindMakesItReal. Sadly, the bane of many of these creatures is that this power only exists [[PlaceOfPower in their native world]]. Ergo, if they try something like '''[[WhenDimensionsCollide invading reality]]''' hoping to use their near infinite power to TakeOverTheWorld, they'll usually find that their power didn't make the trip with them. (Note: this is entirely in contrast with the trope's stated identity.)
Changed line(s) 107,113 (click to see context) from:
* Characters.FifteenStrangersRoundOne: WhenDimensionsCollide: It turns out these guys and the Strangers rounds are going through the same thing ''simultaneously'' albeit in different timelines with different outcomes. It's a natural side effect of [[spoiler:the ''massive'' Dragon Break]].
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Characters.StarfinderOutsiders: WhenDimensionsCollide: Shodravs distort the boundary between their native Shadow Plane and other planes when they continuously inhabit areas where the Shadow Plane borders another. As the barrier thins, other creatures might inadvertently cross between the planes. In time, the veil can cease to exist altogether, with the Plane of Shadow's features overwriting those of the bordering plane. '''20'''
* DarthWiki.AdrasteiaOfRovesse: ProphetEyes: Her eyes are physically affected following her [[spoiler:breaking free of being puppeted]]. Attempts to heal her eyes magically have temporary and '''[[WhenDimensionsCollide unintended]]''' [[AlienGeometries side]] [[CosmicHorrorStory effects]].
* DarthWiki.PokemonSpiritAndShadow: WhenDimensionsCollide: In ''Pokémon Spirit and Shadow PLUS'', during the climax of Team Helix's plans, after Reflatera enters its [=DayRealm=] or [=NightRealm=] form, it causes the Realm of Day and Realm of Night to merge, which [[ApocalypseHow threatens the world as a whole]].
* Fanfic.ADayInTheLifeOfSyliaStingray: WhenDimensionsCollide: Happens so often on the Fictional multiverse (thanks to a lot of writers) that there is a term for the shards of the universes-that-may-have-been-or-were-for-a-short-while that perform a (well, sort of) successful Incursion into the Core Timeline: "Universe Shrapnel".
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Characters.StarfinderOutsiders: WhenDimensionsCollide: Shodravs distort the boundary between their native Shadow Plane and other planes when they continuously inhabit areas where the Shadow Plane borders another. As the barrier thins, other creatures might inadvertently cross between the planes. In time, the veil can cease to exist altogether, with the Plane of Shadow's features overwriting those of the bordering plane. '''20'''
* DarthWiki.AdrasteiaOfRovesse: ProphetEyes: Her eyes are physically affected following her [[spoiler:breaking free of being puppeted]]. Attempts to heal her eyes magically have temporary and '''[[WhenDimensionsCollide unintended]]''' [[AlienGeometries side]] [[CosmicHorrorStory effects]].
* DarthWiki.PokemonSpiritAndShadow: WhenDimensionsCollide: In ''Pokémon Spirit and Shadow PLUS'', during the climax of Team Helix's plans, after Reflatera enters its [=DayRealm=] or [=NightRealm=] form, it causes the Realm of Day and Realm of Night to merge, which [[ApocalypseHow threatens the world as a whole]].
* Fanfic.ADayInTheLifeOfSyliaStingray: WhenDimensionsCollide: Happens so often on the Fictional multiverse (thanks to a lot of writers) that there is a term for the shards of the universes-that-may-have-been-or-were-for-a-short-while that perform a (well, sort of) successful Incursion into the Core Timeline: "Universe Shrapnel".
to:
* Characters.FifteenStrangersRoundOne: WhenDimensionsCollide: It turns out these guys and the Strangers rounds are going through the same thing ''simultaneously'' albeit in different timelines with different outcomes. It's a natural side effect of [[spoiler:the ''massive'' Dragon Break]].
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Characters.StarfinderOutsiders: WhenDimensionsCollide: Shodravs distort the boundary between their native Shadow Plane and other planes when they continuously inhabit areas where the Shadow Plane borders another. As the barrier thins, other creatures might inadvertently cross between the planes. In time, the veil can cease to exist altogether, with the Plane of Shadow's features overwriting those of the bordering plane. '''20'''
plane.
* DarthWiki.AdrasteiaOfRovesse: ProphetEyes: Her eyes are physically affected following her [[spoiler:breaking free of being puppeted]]. Attempts to heal her eyes magically have temporary and '''[[WhenDimensionsCollide unintended]]''' [[AlienGeometries side]] [[CosmicHorrorStory effects]].
* DarthWiki.PokemonSpiritAndShadow: WhenDimensionsCollide: In ''Pokémon Spirit and Shadow PLUS'', during the climax of Team Helix's plans, after Reflatera enters its [=DayRealm=] or [=NightRealm=] form, it causes the Realm of Day and Realm of Night to merge, which [[ApocalypseHow threatens the world as a whole]].
* Fanfic.ADayInTheLifeOfSyliaStingray:WhenDimensionsCollide: Happens so often on the Fictional multiverse (thanks to a lot of writers) that there is a term for the shards of the universes-that-may-have-been-or-were-for-a-short-while that perform a (well, sort of) successful Incursion into the Core Timeline: "Universe Shrapnel".
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Characters.
* DarthWiki.
* DarthWiki.
* Fanfic.ADayInTheLifeOfSyliaStingray:
Changed line(s) 115,120 (click to see context) from:
* Fanfic.LikeFatherLikeDaughter: WhenDimensionsCollide: This universe's version of the "Battle For Mewni" sequence has Toffee try to twist the knife further on Moon by destroying her kingdom... by creating a rift to cause it to collide with Gravity Falls.
* Fanfic.PhantomPains: WhenDimensionsCollide: As in canon, Pariah pulls Amity Park into the Ghost Zone after Danny pulls out the Fright Knight's sword in "Evil Overlord".
* Fanfic.TheDigicrestOfEscalation: WhenDimensionsCollide: Over time several areas of Brockton Bay have the barrier between them and their Digital World equivalents increasingly eroded, accelerating Taylor's plans to gain control of said Digital World areas so she can stabilize things and strengthen the barriers to safe levels.
* FateGrandOrder.TropesQToY: WhenDimensionsCollide: A Lostbelt stitches on an AlternateHistory to Earth to rewrite reality in favor of the altered timeline.
* Film/DoctorStrangeInTheMultiverseOfMadness: RealityBleed: "Incursions" are when '''[[WhenDimensionsCollide two or more universes clash]]''', resulting in the annihilation of one or both. Mr. Fantastic claims that it can be as simple as a person from one universe being in another for a long-enough period of time, and prolonged use of the Darkhold's [[DangerousForbiddenTechnique Dreamwalking spell]] has been confirmed to cause it. Sinister Strange's universe shows us the results: reality literally melting with WeirdWeather, GravityScrew and a literal field of bones of what remained of the inhabitant.
* Film/JumanjiWelcomeToTheJungle: ImmortalityField: Downplayed. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], Jumanji remained as a [[AnotherDimension separate world]] that follows VideoGame logic. It gives the players three VideoGameLives each as a form of limited ResurrectiveImmortality. However, in Jumanji where EverythingIsTryingToKillYou and most of them were given {{Weaksauce Weakness}}es, this seems like a fair trade-off.
* Fanfic.PhantomPains: WhenDimensionsCollide: As in canon, Pariah pulls Amity Park into the Ghost Zone after Danny pulls out the Fright Knight's sword in "Evil Overlord".
* Fanfic.TheDigicrestOfEscalation: WhenDimensionsCollide: Over time several areas of Brockton Bay have the barrier between them and their Digital World equivalents increasingly eroded, accelerating Taylor's plans to gain control of said Digital World areas so she can stabilize things and strengthen the barriers to safe levels.
* FateGrandOrder.TropesQToY: WhenDimensionsCollide: A Lostbelt stitches on an AlternateHistory to Earth to rewrite reality in favor of the altered timeline.
* Film/DoctorStrangeInTheMultiverseOfMadness: RealityBleed: "Incursions" are when '''[[WhenDimensionsCollide two or more universes clash]]''', resulting in the annihilation of one or both. Mr. Fantastic claims that it can be as simple as a person from one universe being in another for a long-enough period of time, and prolonged use of the Darkhold's [[DangerousForbiddenTechnique Dreamwalking spell]] has been confirmed to cause it. Sinister Strange's universe shows us the results: reality literally melting with WeirdWeather, GravityScrew and a literal field of bones of what remained of the inhabitant.
* Film/JumanjiWelcomeToTheJungle: ImmortalityField: Downplayed. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], Jumanji remained as a [[AnotherDimension separate world]] that follows VideoGame logic. It gives the players three VideoGameLives each as a form of limited ResurrectiveImmortality. However, in Jumanji where EverythingIsTryingToKillYou and most of them were given {{Weaksauce Weakness}}es, this seems like a fair trade-off.
to:
* Fanfic.LikeFatherLikeDaughter: WhenDimensionsCollide: This universe's version of the "Battle For Mewni" sequence has Toffee try to twist the knife further on Moon by destroying her kingdom... by creating a rift to cause it to collide with Gravity Falls.
* Fanfic.PhantomPains: WhenDimensionsCollide: As in canon, Pariah pulls Amity Park into the Ghost Zone after Danny pulls out the Fright Knight's sword in "Evil Overlord".
* Fanfic.TheDigicrestOfEscalation: WhenDimensionsCollide: Over time several areas of Brockton Bay have the barrier between them and their Digital World equivalents increasingly eroded, accelerating Taylor's plans to gain control of said Digital World areas so she can stabilize things and strengthen the barriers to safe levels.
* FateGrandOrder.TropesQToY:WhenDimensionsCollide: A Lostbelt stitches on an AlternateHistory to Earth to rewrite reality in favor of the altered timeline.
*Film/DoctorStrangeInTheMultiverseOfMadness: Film.DoctorStrangeInTheMultiverseOfMadness: RealityBleed: "Incursions" are when '''[[WhenDimensionsCollide two or more universes clash]]''', resulting in the annihilation of one or both. Mr. Fantastic claims that it can be as simple as a person from one universe being in another for a long-enough period of time, and prolonged use of the Darkhold's [[DangerousForbiddenTechnique Dreamwalking spell]] has been confirmed to cause it. Sinister Strange's universe shows us the results: reality literally melting with WeirdWeather, GravityScrew and a literal field of bones of what remained of the inhabitant.
*Film/JumanjiWelcomeToTheJungle: Film.JumanjiWelcomeToTheJungle: ImmortalityField: Downplayed. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], Jumanji remained as a [[AnotherDimension separate world]] that follows VideoGame logic. It gives the players three VideoGameLives each as a form of limited ResurrectiveImmortality. However, in Jumanji where EverythingIsTryingToKillYou and most of them were given {{Weaksauce Weakness}}es, this seems like a fair trade-off.trade-off.
* Film.{{Pleasantville}}: What the protagonists' presence does to Pleasantville. Everything is excessively pleasant (as well as lacking color, there is no rain, crime, homelessness, fire, sex or toilets). Throughout the film their actions impact the world around them and colors and concepts from the real world (like fire, sex, color and rain) start to appear as a result.
* Fridge.TheConversionBureau:
-->'''Twilight:''' [[LetMeGetThisStraight Is that what you're saying?]] That somepony popped Equestria out of our reality and '''[[WhenDimensionsCollide crashed it onto his]]'''? How's that even meant to work? [[SciFiWritersHaveNoSenseOfScale Several trillion tons of continent]] [[ColonyDrop does not make a gentle impact on another world]], not without [[GiantWallOfWateryDoom mega-tsunamis]] and earthquakes that would level entire cities, followed by a dust cloud that would blanket the world in an artificial winter lasting decades! [[WhatHappenedToTheMouse And what about the world we leave behind, what about Equus?]] Would it just carry on spinning without a care, despite having a hole several-thousand-miles-across gouged out of the planet's crust? Even if you didn't breach the mantle, creating a supervolcano that would pull the planet inside-out, the change in mass and absence of the Princesses would throw the sun and moon out of their orbits, causing them to collide, or even worse, [[ColonyDrop to impact with Equus itself!]] [[FridgeHorror Anypony – anything, left behind would die, horribly!]] Every griffon, every dragon, zebra, reindeer, whatever!
* JudgeDredd.TropesQToZ: In the story "Helter Skelter", interdimensional travel by supervillains from other universes starts to fracture the fabric of reality, causing elements from different dimensions to bleed over into each other. One alternate dimension in particular is referenced that collided completely with another one, [[MergedReality merging the two]] into a never-ending WorldOfChaos.
* Literature.AlternateRoutes: The climactic threat is that the irrational and immaterial otherworld is trying to merge with reality.
* Literature.HeroComplex: Earth 1012 and the Dead Earth are forcibly merged by the Ascendant toward the end of the story.
* Literature.RodAllbrightAlienAdventures: Book 2 reveals that BKR and Smorkus Flinders were working on this, intending to create a permanent door between Dimension X and Dimension Q that would eventually fuse them into one dimension "where reality can shift like sand". However, after Smorkus Flinders is taken into captivity and BKR subsequently ''escapes'' from custody, he decides to focus on one of his other, older plans.
* Literature.VoidDomain: The new demon-fused Enigma breeds pull a small piece of Hell into the physical world when they're killed, presumably to advance Life's plan to drag Void into the world.
* Manga.{{Uzumaki}}: The laws of the spiral world begin to rapidly overtake those of physics throughout the story.
* NightmareFuel.LikeFatherLikeDaughter: Toffee, to spite Moon even more, arranges for Gravity Falls and the kingdom of Mewni to ''[[WhenDimensionsCollide collide]]''.
* Recap.BuffyTheVampireSlayerS5E22TheGift: Glory is trying to re-enter its dimension, but such effort would cause all dimensions to collide (thus destroying the Multiverse). Small glimpses of this process can be seen when places on Earth get changed and twisted and creatures from other dimensions including Cenobite-like demons and a dragon enter our realm.
* Recap.DigimonAdventure02E49TheLastTemptationOfTheDigiDestined: [=BelialVamdemon=]'s master plan, with him spreading a veil of darkness over both the Digital World and Earth, intending to unify them and allowing him to rule over both humans and Digimon. As Takeru and Hikari note, this is the same goal he had when they fought him three years ago.
* Recap.GravityFallsS2E12ATaleOfTwoStans: Ford believed that a "dimension of weirdness" was bleeding into our world in the vicinity of Gravity Falls, and set out to prove it.
* SelfDemonstrating.BillCipher: MY MASTER PLAN IS TO OPEN A GATEWAY BETWEEN MY NIGHTMARE REALM DIMENSION AND EARTH, USHERING IN THE GLORIOUS ERA OF WEIRDMAGGEDON! WOULD YOU BELIEVE IT TOOK OVER 1 BILLION YEARS TO COME TO FRUITION?
* Series.DoubutsuSentaiZyuohger: At the end of the final episode, when the Zyuohgers reactivate the Link Cube so the Zyumen can go home, it ends up ''fusing'' Zyuland with Earth. Apparently, their Champion Symbols took their desire to unite their worlds very literally.
* Series.ToeiUniverse: ''Series/KamenRiderDecade'' (2009): This series introduces TheMultiverse, with alternate universe counterparts of each of the first nine Heisei Rider series and the prospect of a MergedReality being endangered WhenDimensionsCollide. From this point onwards, most Rider series, from the original to the present, are said to take place in the same world, with an annual crossover movie between the current series and the previous one.
* TabletopGame.{{Eberron}}: PortalEndpointResemblance: There are Manifest Zones where the material world is strongly touched by another Plane, opening natural planar portals and causing the traits of that Plane to '''[[WhenDimensionsCollide bleed through into the surroundings]]'''.
* VideoGame.CP3D: The plot of the Rift event. Different rooms are affected by the Dimension that collides with it -- for example, the Plaza collides with the Noir Dimension. It turns into a city straight out of a FilmNoir set, complete with a grayscale world and inexplicable monologuing.
* VideoGame.GreyArea2023: DeliberatelyMonochrome: The Grey Area, where Chapter 3 takes place, is entirely monochrome (hence the name). Hailey is one of the few sources of color in this area. When Hailey returns to the real world in Chapter 4, she'll point out that "at least it's not grey anymore." In Chapter 5, parts of the real world also become monochrome '''[[WhenDimensionsCollide when the Grey Area starts merging with it]]'''.
!! People move between one dimension and the other, without the dimensions themselves merging
* EarthIsABattlefield: ''Fanfic/{{Coreline}}'': WhenDimensionsCollide, the result is every bad guy in almost known work of fiction of humanity fighting against every good guy in almost every known work of fiction of humanity, with an awful lot of people stuck in the middle (and either self-enforcing "TookALevelInBadass" or die). This is a conflict that has gone through hot and cold cycles, with the "CHIMERA War" arc starting on ''Fanfic/CorelineOperationSnakeCharmer'' and ending on ''Fanfic/CorelineOperationEndgame'' being the latest "hot" period.
* WeakerInTheRealWorld: In {{Dream Land}}s and {{Spirit World}}s, there is often an EldritchAbomination who is able to harness the limitless power that exists there. An omnipotent RealityWarper who can fully utilize the concept YourMindMakesItReal. Sadly, the bane of many of these creatures is that this power only exists [[PlaceOfPower in their native world]]. Ergo, if they try something like '''[[WhenDimensionsCollide invading reality]]''' hoping to use their near infinite power to TakeOverTheWorld, they'll usually find that their power didn't make the trip with them. (Note: this is entirely in contrast with the trope's stated identity, which would require their powers to make the trip as well.)
* Fanfic.PhantomPains: As in canon, Pariah pulls Amity Park into the Ghost Zone after Danny pulls out the Fright Knight's sword in "Evil Overlord".
* Literature.TheHazelWood: If a story character from the Hinterland crosses over, others can follow.
* Recap.KikaiSentaiZenkaigerEpFinTheWorldThatIsMineTheWorldsThatAreOurs: Of a positive kind. After the rediscovery of the parallel worlds, everyone is free to travel in between all of them, establishing public relations and allowing residents to mingle and mix around as a result.
* Recap.StarTrekVoyagerS5E12BrideOfChaotica: '''[[WhenDimensionsCollide Aliens from a photonic universe]]''' mistake ''Film/TheAdventuresOfCaptainProton'' for reality and go to war with Dr. Chaotica. Captain Janeway must enter the holodeck program as the sultry Queen Arachnia to put a stop to things.
* Series.JuanDelaCruz: Peru-ha opened the portals of the realms of the kapre, tiyanak and nuno to the human world unleashing chaos. The kapre, tiyanak and nuno soon began terrorizing humanity. This will keep our heroes distracted from Peru-ha's real plan, [[spoiler: to collect all gems from five different dimensions for a crown that would give her tremendous power]]. Our heroes eventually locks the portals.
* Theatre.{{Tsukiuta}}: Due to a sudden sunshower, the worlds' boundaries weaken, leading to Koi getting thrown into the ''youkai'' world. Because of his status as an irregular, Koi is no longer human, and he's turned into a {{Nue}}.
* VideoGame.MortTheChicken: The basic premise is that two dimensions exist, one Earth-like and inhabited by sentient chickens, the other abstract and inhabited by sentient cubes. The cubes mistake the chickens' hay bales for captured members of their own kind, and invade through a portal in a well to kidnap the chickens' chicks as ransom.
!!Other -- context present, but don't fit other patterns
* ImmortalityField: Downplayed for Jumanji in ''Film/JumanjiWelcomeToTheJungle''. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], it remained as a [[AnotherDimension separate world]] that follows VideoGame logic. '''(Says "downplayed", reads "not used").'''
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Roleplay.XProject: In 2015, XP "relaunched" through the [[http://x-journal.net/Wiki/index.php?title=Dark_Phoenix_Saga Dark Phoenix Saga]], which merged dimensions and allowed for new versions of previously-played characters. '''(Not super clear what's going on here.)'''
* VideoGame.MachineKnight: The invasion of a StandardFantasySetting by a CyberPunk one. '''(I can tell that some invasion is happening but, as written, I can't tell whether the setting itself or the world's inhabitants are doing the invading, so I can't tell which of the upper two categories to put it into.)'''
* VideoGame.MarvelFutureFight: The incursions between various timelines and alternate universes make up the backbone of the plot. '''(As above.)'''
!! ZCE/unclear/random potholes -- everything that isn't clear about saying what's happening
* AnotherDimension: Listed as one of the "Types of Other Dimensions".
* LayeredWorld: ''Franchise/{{Digimon}}'': The various works in the franchise have at minimum the mundane world and cyberspace in the form of the Digital World. ''Anime/DigimonAdventure'' and ''Anime/DigimonUniverseAppMonsters'' both have the Internet as a separate cyberspace dimension in itself, distinct from the Digital World and connecting it to the material world. Many ''Digimon'' settings also have various other dimensions and in-between worlds with varying degrees of association with the local cyberspace such as [[Anime/DigimonAdventure02 the Dark Ocean]], [[Anime/DigimonXrosWarsTheYoungHuntersWhoLeaptThroughTime the DigiQuartz]], and [[Anime/DigimonUniverseAppMonsters the AR-Fields]]. WhenDimensionsCollide is one of many consequences of these wildly different places coexisting. '''(Mostly talks about different dimensions existing, doesn't specificy what this trope actually entails.)'''
* OnceMoreWithClarity: ''WesternAnimation/GravityFalls'': In "A Tale Of Two Stans", during [[spoiler: Ford’s]] explanation of his Portal project, the visuals and his narration suggest that he came up with it on his own before recruiting his friend [[spoiler: Fiddleford]] for help. But two episodes later in "The Last Mabelcorn", he reveals the full story: Bill Cipher was the one who gave Ford the idea for the Portal to give him answers to the origins of Gravity Falls’s weirdness. They worked together to the point where Ford let Bill possess him. Furthermore, in that episode, after Fiddleford accidentally gets sucked into the portal and comes out spouting gibberish, Ford seems to brush him off. However, "The Last Mabelcorn" also reveals that after that incident, he confronted Bill, who revealed '''[[WhenDimensionsCollide his true intentions]]''' to him. '''(Doesn't specificy what "his true intentions" are.)'''
* RoyalBastard: ''VideoGame/TheElderScrollsIVOblivion'': After the Emperor and his legitimate children are assassinated, the last hope for the world is to rescue his illegitimate son Martin, who has lived a monastic life [[IAmWho with no knowledge of his heritage]]. Nonetheless, Martin's RoyalBlood is the [[RoyaltySuperpower only thing]] that can protect the world from '''[[WhenDimensionsCollide the realms of Oblivion]]'''.
* TheMagicGoesAway: ZigZagged in ''VideoGame/TheWitcher3WildHunt''. LastOfHisKind Geralt monologues about how there's not much of a place in the world for [[HunterOfMonsters Witchers]] anymore due to a dwindling monster population brought on by society advancing, as well as increased FantasticRacism towards them once the public began to feel less threatened by monsters culminating in the destruction of every Witcher school by UngratefulTownsfolk & renegade mages. However, despite what the public wants to believe there's still plenty of monsters out there, and plenty of work for Geralt. According to the novel ''Tales from the world of The Witcher'', TheMagicComesBack in a big way during the '''[[WhenDimensionsCollide Second Conjunction of the Spheres]]''' decades after the events of the game, leading to the [[OrderReborn establishment of new Witcher schools]] such as the School of the Crane. '''(States some connection to TheMagicComesBack, but nothing more.)'''
* Characters.FifteenStrangersRoundOne: It turns out these guys and the Strangers rounds are going through the same thing ''simultaneously'' albeit in different timelines with different outcomes. It's a natural side effect of [[spoiler:the ''massive'' Dragon Break]].
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* DarthWiki.AdrasteiaOfRovesse: ProphetEyes: Her eyes are physically affected following her [[spoiler:breaking free of being puppeted]]. Attempts to heal her eyes magically have temporary and '''[[WhenDimensionsCollide unintended]]''' [[AlienGeometries side]] [[CosmicHorrorStory effects]].
* Quotes/BitchInSheepsClothing:
->''"He told me he was [[TheMuse a muse]], that he chose one brilliant mind a century to inspire. [[MyGreatestFailure What a fool I was, blinded by his flattery and games]]. He became my research assistant. He was free to move in and out of my mind as he pleased. We were partners. When he told me I could complete my research by building a gateway to other worlds, I trusted him. He said this was the way genius happened: with a little help from a friend. It seemed that I was on the verge of my greatest achievement... [[KickTheMoralityPet until my partner]] got a [[GoMadFromTheRevelation glimpse of]] Bill's '''[[WhenDimensionsCollide true plans]]'''."'' '''(Doesn't specificy what "his true plans" are.)'''
* Roleplay.{{Genessia}}: The leading theory InUniverse as to type of place Genessia is, given the subarchways... and '''[[WhenDimensionsCollide what happens when the barrier above them breaks]]''.
* TabletopGame.GammaWorld: MagicalParticleAccelerator: The "Big Mistake" of the 7th edition was caused by the Large Hadron Collider malfunctioning somehow. '''[[WhenDimensionsCollide And what a malfunction it was.]]'''
* Fanfic.
* Fanfic.
* FateGrandOrder.TropesQToY:
*
*
* Film.{{Pleasantville}}: What the protagonists' presence does to Pleasantville. Everything is excessively pleasant (as well as lacking color, there is no rain, crime, homelessness, fire, sex or toilets). Throughout the film their actions impact the world around them and colors and concepts from the real world (like fire, sex, color and rain) start to appear as a result.
* Fridge.TheConversionBureau:
-->'''Twilight:''' [[LetMeGetThisStraight Is that what you're saying?]] That somepony popped Equestria out of our reality and '''[[WhenDimensionsCollide crashed it onto his]]'''? How's that even meant to work? [[SciFiWritersHaveNoSenseOfScale Several trillion tons of continent]] [[ColonyDrop does not make a gentle impact on another world]], not without [[GiantWallOfWateryDoom mega-tsunamis]] and earthquakes that would level entire cities, followed by a dust cloud that would blanket the world in an artificial winter lasting decades! [[WhatHappenedToTheMouse And what about the world we leave behind, what about Equus?]] Would it just carry on spinning without a care, despite having a hole several-thousand-miles-across gouged out of the planet's crust? Even if you didn't breach the mantle, creating a supervolcano that would pull the planet inside-out, the change in mass and absence of the Princesses would throw the sun and moon out of their orbits, causing them to collide, or even worse, [[ColonyDrop to impact with Equus itself!]] [[FridgeHorror Anypony – anything, left behind would die, horribly!]] Every griffon, every dragon, zebra, reindeer, whatever!
* JudgeDredd.TropesQToZ: In the story "Helter Skelter", interdimensional travel by supervillains from other universes starts to fracture the fabric of reality, causing elements from different dimensions to bleed over into each other. One alternate dimension in particular is referenced that collided completely with another one, [[MergedReality merging the two]] into a never-ending WorldOfChaos.
* Literature.AlternateRoutes: The climactic threat is that the irrational and immaterial otherworld is trying to merge with reality.
* Literature.HeroComplex: Earth 1012 and the Dead Earth are forcibly merged by the Ascendant toward the end of the story.
* Literature.RodAllbrightAlienAdventures: Book 2 reveals that BKR and Smorkus Flinders were working on this, intending to create a permanent door between Dimension X and Dimension Q that would eventually fuse them into one dimension "where reality can shift like sand". However, after Smorkus Flinders is taken into captivity and BKR subsequently ''escapes'' from custody, he decides to focus on one of his other, older plans.
* Literature.VoidDomain: The new demon-fused Enigma breeds pull a small piece of Hell into the physical world when they're killed, presumably to advance Life's plan to drag Void into the world.
* Manga.{{Uzumaki}}: The laws of the spiral world begin to rapidly overtake those of physics throughout the story.
* NightmareFuel.LikeFatherLikeDaughter: Toffee, to spite Moon even more, arranges for Gravity Falls and the kingdom of Mewni to ''[[WhenDimensionsCollide collide]]''.
* Recap.BuffyTheVampireSlayerS5E22TheGift: Glory is trying to re-enter its dimension, but such effort would cause all dimensions to collide (thus destroying the Multiverse). Small glimpses of this process can be seen when places on Earth get changed and twisted and creatures from other dimensions including Cenobite-like demons and a dragon enter our realm.
* Recap.DigimonAdventure02E49TheLastTemptationOfTheDigiDestined: [=BelialVamdemon=]'s master plan, with him spreading a veil of darkness over both the Digital World and Earth, intending to unify them and allowing him to rule over both humans and Digimon. As Takeru and Hikari note, this is the same goal he had when they fought him three years ago.
* Recap.GravityFallsS2E12ATaleOfTwoStans: Ford believed that a "dimension of weirdness" was bleeding into our world in the vicinity of Gravity Falls, and set out to prove it.
* SelfDemonstrating.BillCipher: MY MASTER PLAN IS TO OPEN A GATEWAY BETWEEN MY NIGHTMARE REALM DIMENSION AND EARTH, USHERING IN THE GLORIOUS ERA OF WEIRDMAGGEDON! WOULD YOU BELIEVE IT TOOK OVER 1 BILLION YEARS TO COME TO FRUITION?
* Series.DoubutsuSentaiZyuohger: At the end of the final episode, when the Zyuohgers reactivate the Link Cube so the Zyumen can go home, it ends up ''fusing'' Zyuland with Earth. Apparently, their Champion Symbols took their desire to unite their worlds very literally.
* Series.ToeiUniverse: ''Series/KamenRiderDecade'' (2009): This series introduces TheMultiverse, with alternate universe counterparts of each of the first nine Heisei Rider series and the prospect of a MergedReality being endangered WhenDimensionsCollide. From this point onwards, most Rider series, from the original to the present, are said to take place in the same world, with an annual crossover movie between the current series and the previous one.
* TabletopGame.{{Eberron}}: PortalEndpointResemblance: There are Manifest Zones where the material world is strongly touched by another Plane, opening natural planar portals and causing the traits of that Plane to '''[[WhenDimensionsCollide bleed through into the surroundings]]'''.
* VideoGame.CP3D: The plot of the Rift event. Different rooms are affected by the Dimension that collides with it -- for example, the Plaza collides with the Noir Dimension. It turns into a city straight out of a FilmNoir set, complete with a grayscale world and inexplicable monologuing.
* VideoGame.GreyArea2023: DeliberatelyMonochrome: The Grey Area, where Chapter 3 takes place, is entirely monochrome (hence the name). Hailey is one of the few sources of color in this area. When Hailey returns to the real world in Chapter 4, she'll point out that "at least it's not grey anymore." In Chapter 5, parts of the real world also become monochrome '''[[WhenDimensionsCollide when the Grey Area starts merging with it]]'''.
!! People move between one dimension and the other, without the dimensions themselves merging
* EarthIsABattlefield: ''Fanfic/{{Coreline}}'': WhenDimensionsCollide, the result is every bad guy in almost known work of fiction of humanity fighting against every good guy in almost every known work of fiction of humanity, with an awful lot of people stuck in the middle (and either self-enforcing "TookALevelInBadass" or die). This is a conflict that has gone through hot and cold cycles, with the "CHIMERA War" arc starting on ''Fanfic/CorelineOperationSnakeCharmer'' and ending on ''Fanfic/CorelineOperationEndgame'' being the latest "hot" period.
* WeakerInTheRealWorld: In {{Dream Land}}s and {{Spirit World}}s, there is often an EldritchAbomination who is able to harness the limitless power that exists there. An omnipotent RealityWarper who can fully utilize the concept YourMindMakesItReal. Sadly, the bane of many of these creatures is that this power only exists [[PlaceOfPower in their native world]]. Ergo, if they try something like '''[[WhenDimensionsCollide invading reality]]''' hoping to use their near infinite power to TakeOverTheWorld, they'll usually find that their power didn't make the trip with them. (Note: this is entirely in contrast with the trope's stated identity, which would require their powers to make the trip as well.)
* Fanfic.PhantomPains: As in canon, Pariah pulls Amity Park into the Ghost Zone after Danny pulls out the Fright Knight's sword in "Evil Overlord".
* Literature.TheHazelWood: If a story character from the Hinterland crosses over, others can follow.
* Recap.KikaiSentaiZenkaigerEpFinTheWorldThatIsMineTheWorldsThatAreOurs: Of a positive kind. After the rediscovery of the parallel worlds, everyone is free to travel in between all of them, establishing public relations and allowing residents to mingle and mix around as a result.
* Recap.StarTrekVoyagerS5E12BrideOfChaotica: '''[[WhenDimensionsCollide Aliens from a photonic universe]]''' mistake ''Film/TheAdventuresOfCaptainProton'' for reality and go to war with Dr. Chaotica. Captain Janeway must enter the holodeck program as the sultry Queen Arachnia to put a stop to things.
* Series.JuanDelaCruz: Peru-ha opened the portals of the realms of the kapre, tiyanak and nuno to the human world unleashing chaos. The kapre, tiyanak and nuno soon began terrorizing humanity. This will keep our heroes distracted from Peru-ha's real plan, [[spoiler: to collect all gems from five different dimensions for a crown that would give her tremendous power]]. Our heroes eventually locks the portals.
* Theatre.{{Tsukiuta}}: Due to a sudden sunshower, the worlds' boundaries weaken, leading to Koi getting thrown into the ''youkai'' world. Because of his status as an irregular, Koi is no longer human, and he's turned into a {{Nue}}.
* VideoGame.MortTheChicken: The basic premise is that two dimensions exist, one Earth-like and inhabited by sentient chickens, the other abstract and inhabited by sentient cubes. The cubes mistake the chickens' hay bales for captured members of their own kind, and invade through a portal in a well to kidnap the chickens' chicks as ransom.
!!Other -- context present, but don't fit other patterns
* ImmortalityField: Downplayed for Jumanji in ''Film/JumanjiWelcomeToTheJungle''. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], it remained as a [[AnotherDimension separate world]] that follows VideoGame logic. '''(Says "downplayed", reads "not used").'''
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Roleplay.XProject: In 2015, XP "relaunched" through the [[http://x-journal.net/Wiki/index.php?title=Dark_Phoenix_Saga Dark Phoenix Saga]], which merged dimensions and allowed for new versions of previously-played characters. '''(Not super clear what's going on here.)'''
* VideoGame.MachineKnight: The invasion of a StandardFantasySetting by a CyberPunk one. '''(I can tell that some invasion is happening but, as written, I can't tell whether the setting itself or the world's inhabitants are doing the invading, so I can't tell which of the upper two categories to put it into.)'''
* VideoGame.MarvelFutureFight: The incursions between various timelines and alternate universes make up the backbone of the plot. '''(As above.)'''
!! ZCE/unclear/random potholes -- everything that isn't clear about saying what's happening
* AnotherDimension: Listed as one of the "Types of Other Dimensions".
* LayeredWorld: ''Franchise/{{Digimon}}'': The various works in the franchise have at minimum the mundane world and cyberspace in the form of the Digital World. ''Anime/DigimonAdventure'' and ''Anime/DigimonUniverseAppMonsters'' both have the Internet as a separate cyberspace dimension in itself, distinct from the Digital World and connecting it to the material world. Many ''Digimon'' settings also have various other dimensions and in-between worlds with varying degrees of association with the local cyberspace such as [[Anime/DigimonAdventure02 the Dark Ocean]], [[Anime/DigimonXrosWarsTheYoungHuntersWhoLeaptThroughTime the DigiQuartz]], and [[Anime/DigimonUniverseAppMonsters the AR-Fields]]. WhenDimensionsCollide is one of many consequences of these wildly different places coexisting. '''(Mostly talks about different dimensions existing, doesn't specificy what this trope actually entails.)'''
* OnceMoreWithClarity: ''WesternAnimation/GravityFalls'': In "A Tale Of Two Stans", during [[spoiler: Ford’s]] explanation of his Portal project, the visuals and his narration suggest that he came up with it on his own before recruiting his friend [[spoiler: Fiddleford]] for help. But two episodes later in "The Last Mabelcorn", he reveals the full story: Bill Cipher was the one who gave Ford the idea for the Portal to give him answers to the origins of Gravity Falls’s weirdness. They worked together to the point where Ford let Bill possess him. Furthermore, in that episode, after Fiddleford accidentally gets sucked into the portal and comes out spouting gibberish, Ford seems to brush him off. However, "The Last Mabelcorn" also reveals that after that incident, he confronted Bill, who revealed '''[[WhenDimensionsCollide his true intentions]]''' to him. '''(Doesn't specificy what "his true intentions" are.)'''
* RoyalBastard: ''VideoGame/TheElderScrollsIVOblivion'': After the Emperor and his legitimate children are assassinated, the last hope for the world is to rescue his illegitimate son Martin, who has lived a monastic life [[IAmWho with no knowledge of his heritage]]. Nonetheless, Martin's RoyalBlood is the [[RoyaltySuperpower only thing]] that can protect the world from '''[[WhenDimensionsCollide the realms of Oblivion]]'''.
* TheMagicGoesAway: ZigZagged in ''VideoGame/TheWitcher3WildHunt''. LastOfHisKind Geralt monologues about how there's not much of a place in the world for [[HunterOfMonsters Witchers]] anymore due to a dwindling monster population brought on by society advancing, as well as increased FantasticRacism towards them once the public began to feel less threatened by monsters culminating in the destruction of every Witcher school by UngratefulTownsfolk & renegade mages. However, despite what the public wants to believe there's still plenty of monsters out there, and plenty of work for Geralt. According to the novel ''Tales from the world of The Witcher'', TheMagicComesBack in a big way during the '''[[WhenDimensionsCollide Second Conjunction of the Spheres]]''' decades after the events of the game, leading to the [[OrderReborn establishment of new Witcher schools]] such as the School of the Crane. '''(States some connection to TheMagicComesBack, but nothing more.)'''
* Characters.FifteenStrangersRoundOne: It turns out these guys and the Strangers rounds are going through the same thing ''simultaneously'' albeit in different timelines with different outcomes. It's a natural side effect of [[spoiler:the ''massive'' Dragon Break]].
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* DarthWiki.AdrasteiaOfRovesse: ProphetEyes: Her eyes are physically affected following her [[spoiler:breaking free of being puppeted]]. Attempts to heal her eyes magically have temporary and '''[[WhenDimensionsCollide unintended]]''' [[AlienGeometries side]] [[CosmicHorrorStory effects]].
* Quotes/BitchInSheepsClothing:
->''"He told me he was [[TheMuse a muse]], that he chose one brilliant mind a century to inspire. [[MyGreatestFailure What a fool I was, blinded by his flattery and games]]. He became my research assistant. He was free to move in and out of my mind as he pleased. We were partners. When he told me I could complete my research by building a gateway to other worlds, I trusted him. He said this was the way genius happened: with a little help from a friend. It seemed that I was on the verge of my greatest achievement... [[KickTheMoralityPet until my partner]] got a [[GoMadFromTheRevelation glimpse of]] Bill's '''[[WhenDimensionsCollide true plans]]'''."'' '''(Doesn't specificy what "his true plans" are.)'''
* Roleplay.{{Genessia}}: The leading theory InUniverse as to type of place Genessia is, given the subarchways... and '''[[WhenDimensionsCollide what happens when the barrier above them breaks]]''.
* TabletopGame.GammaWorld: MagicalParticleAccelerator: The "Big Mistake" of the 7th edition was caused by the Large Hadron Collider malfunctioning somehow. '''[[WhenDimensionsCollide And what a malfunction it was.]]'''
Changed line(s) 123,124 (click to see context) from:
As a first analysis, this page leans the most heavily towards the concept of two universes merging wholesale with one another, sometimes with travelers "dragging" their home universe with them but most often not. This contrasts, notably, with the way the description frames it. The name may be an issue -- "When Dimensions Collide" doesn't really bring to mind individual travelers as the first thing. It also does not seem to favor abrupt transformations -- some are, some are undescribed, and many happen gradually and by stages, which contradicts how it distinguishes itself from RealityBleed.
to:
* Invasion/movement of individuals: 9/60 = 15%
* Other: 5/60 = 8.3%
* ZCE/unclear: 11/60 = 18.3%
Overall, both the page
Added DiffLines:
Proscriptions:
* Merge. That's the main one.
* WhenDimensionsCollide has the better name -- neither of the two is really focused on a gradual "bleed"; abrupt, sudden, and sporadic invasions happen plenty.
* A lot of entires are examples of, and should be moved to, AllOfTimeAtOnce and DimensionalTraveler. There's also a loose trend of the natives of one world launching a mass invasion of another that MultiversalConqueror doesn't really cover -- there might be a discussion worth having about whether DimensionalInvasion or something is worth making as a sister/subtrope of AlienInvasion.
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* PatchworkMap: ''TabletopGame/{{Warhammer}} Fantasy'': The Chaos Wastes are a bit at odds with reality thanks to the Realms of Chaos '''[[WhenDimensionsCollide bleeding through from the Polar Gate]]''', so the GrimUpNorth is interspersed with regions of forest, desert, jungle, and even incongruous farmland.
to:
* PatchworkMap: ''TabletopGame/{{Warhammer}} Fantasy'': The Chaos Wastes are a bit at odds with reality thanks to the Realms of Chaos '''[[WhenDimensionsCollide bleeding through from the Polar Gate]]''', so the GrimUpNorth is interspersed with regions of forest, desert, jungle, and even incongruous farmland. '''10'''
* RoyalBastard: ''VideoGame/TheElderScrollsIVOblivion'': After the Emperor and his legitimate children are assassinated, the last hope for the world is to rescue his illegitimate son Martin, who has lived a monastic life [[IAmWho with no knowledge of his heritage]]. Nonetheless, Martin's RoyalBlood is the [[RoyaltySuperpower only thing]] that can protect the world from '''[[WhenDimensionsCollide the realms of Oblivion]]'''.
* TheMagicGoesAway: ZigZagged in ''VideoGame/TheWitcher3WildHunt''. LastOfHisKind Geralt monologues about how there's not much of a place in the world for [[HunterOfMonsters Witchers]] anymore due to a dwindling monster population brought on by society advancing, as well as increased FantasticRacism towards them once the public began to feel less threatened by monsters culminating in the destruction of every Witcher school by UngratefulTownsfolk & renegade mages. However, despite what the public wants to believe there's still plenty of monsters out there, and plenty of work for Geralt. According to the novel ''Tales from the world of The Witcher'', TheMagicComesBack in a big way during the '''[[WhenDimensionsCollide Second Conjunction of the Spheres]]''' decades after the events of the game, leading to the [[OrderReborn establishment of new Witcher schools]] such as the School of the Crane.
* ThinDimensionalBarrier: If the dimensional barrier is completely breached in an area, then see WhenDimensionsCollide.
* WeakerInTheRealWorld: In {{Dream Land}}s and {{Spirit World}}s, there is often an EldritchAbomination who is able to harness the limitless power that exists there. An omnipotent RealityWarper who can fully utilize the concept YourMindMakesItReal. Sadly, the bane of many of these creatures is that this power only exists [[PlaceOfPower in their native world]]. Ergo, if they try something like '''[[WhenDimensionsCollide invading reality]]''' hoping to use their near infinite power to TakeOverTheWorld, they'll usually find that their power didn't make the trip with them. (Note: this is entirely in contrast with the trope's stated identity.)
* WorldsCollide: A literal collision between worlds; see ColonyDrop for this. Alternatively, maybe you were looking for WhenDimensionsCollide instead.
* BigBad.MarvelCinematicUniverse: ''Series/MsMarvel2022'': Najma is Kamran's mother and leader of the exiled Djinn of the Clandestines, who seeks to use Kamala's bangle to '''[[WhenDimensionsCollide tear down the Veil that separates the Noor dimension from Earth]]''' in order to return home, which will destroy Earth in the process.
* Characters.FifteenStrangersRoundOne: WhenDimensionsCollide: It turns out these guys and the Strangers rounds are going through the same thing ''simultaneously'' albeit in different timelines with different outcomes. It's a natural side effect of [[spoiler:the ''massive'' Dragon Break]].
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Characters.StarfinderOutsiders: WhenDimensionsCollide: Shodravs distort the boundary between their native Shadow Plane and other planes when they continuously inhabit areas where the Shadow Plane borders another. As the barrier thins, other creatures might inadvertently cross between the planes. In time, the veil can cease to exist altogether, with the Plane of Shadow's features overwriting those of the bordering plane. '''20'''
* DarthWiki.AdrasteiaOfRovesse: ProphetEyes: Her eyes are physically affected following her [[spoiler:breaking free of being puppeted]]. Attempts to heal her eyes magically have temporary and '''[[WhenDimensionsCollide unintended]]''' [[AlienGeometries side]] [[CosmicHorrorStory effects]].
* DarthWiki.PokemonSpiritAndShadow: WhenDimensionsCollide: In ''Pokémon Spirit and Shadow PLUS'', during the climax of Team Helix's plans, after Reflatera enters its [=DayRealm=] or [=NightRealm=] form, it causes the Realm of Day and Realm of Night to merge, which [[ApocalypseHow threatens the world as a whole]].
* Fanfic.ADayInTheLifeOfSyliaStingray: WhenDimensionsCollide: Happens so often on the Fictional multiverse (thanks to a lot of writers) that there is a term for the shards of the universes-that-may-have-been-or-were-for-a-short-while that perform a (well, sort of) successful Incursion into the Core Timeline: "Universe Shrapnel".
* Fanfic.DoubleTeamTrouble: InAWorld WhenDimensionsCollide and all hell breaks loose, the Core Timeline has seen a whole damn lot. Multiple Alternate versions of a single person run around, meet, sometimes [[AlternateUniverseReedRichardsIsAwesome gel]], sometimes [[OtherMeAnnoysMe not]]. The streets call this a "plague" for a reason.
* Fanfic.LikeFatherLikeDaughter: WhenDimensionsCollide: This universe's version of the "Battle For Mewni" sequence has Toffee try to twist the knife further on Moon by destroying her kingdom... by creating a rift to cause it to collide with Gravity Falls.
* Fanfic.PhantomPains: WhenDimensionsCollide: As in canon, Pariah pulls Amity Park into the Ghost Zone after Danny pulls out the Fright Knight's sword in "Evil Overlord".
* Fanfic.TheDigicrestOfEscalation: WhenDimensionsCollide: Over time several areas of Brockton Bay have the barrier between them and their Digital World equivalents increasingly eroded, accelerating Taylor's plans to gain control of said Digital World areas so she can stabilize things and strengthen the barriers to safe levels.
* FateGrandOrder.TropesQToY: WhenDimensionsCollide: A Lostbelt stitches on an AlternateHistory to Earth to rewrite reality in favor of the altered timeline.
* Film/DoctorStrangeInTheMultiverseOfMadness: RealityBleed: "Incursions" are when '''[[WhenDimensionsCollide two or more universes clash]]''', resulting in the annihilation of one or both. Mr. Fantastic claims that it can be as simple as a person from one universe being in another for a long-enough period of time, and prolonged use of the Darkhold's [[DangerousForbiddenTechnique Dreamwalking spell]] has been confirmed to cause it. Sinister Strange's universe shows us the results: reality literally melting with WeirdWeather, GravityScrew and a literal field of bones of what remained of the inhabitant.
* Film/JumanjiWelcomeToTheJungle: ImmortalityField: Downplayed. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], Jumanji remained as a [[AnotherDimension separate world]] that follows VideoGame logic. It gives the players three VideoGameLives each as a form of limited ResurrectiveImmortality. However, in Jumanji where EverythingIsTryingToKillYou and most of them were given {{Weaksauce Weakness}}es, this seems like a fair trade-off.
* RoyalBastard: ''VideoGame/TheElderScrollsIVOblivion'': After the Emperor and his legitimate children are assassinated, the last hope for the world is to rescue his illegitimate son Martin, who has lived a monastic life [[IAmWho with no knowledge of his heritage]]. Nonetheless, Martin's RoyalBlood is the [[RoyaltySuperpower only thing]] that can protect the world from '''[[WhenDimensionsCollide the realms of Oblivion]]'''.
* TheMagicGoesAway: ZigZagged in ''VideoGame/TheWitcher3WildHunt''. LastOfHisKind Geralt monologues about how there's not much of a place in the world for [[HunterOfMonsters Witchers]] anymore due to a dwindling monster population brought on by society advancing, as well as increased FantasticRacism towards them once the public began to feel less threatened by monsters culminating in the destruction of every Witcher school by UngratefulTownsfolk & renegade mages. However, despite what the public wants to believe there's still plenty of monsters out there, and plenty of work for Geralt. According to the novel ''Tales from the world of The Witcher'', TheMagicComesBack in a big way during the '''[[WhenDimensionsCollide Second Conjunction of the Spheres]]''' decades after the events of the game, leading to the [[OrderReborn establishment of new Witcher schools]] such as the School of the Crane.
* ThinDimensionalBarrier: If the dimensional barrier is completely breached in an area, then see WhenDimensionsCollide.
* WeakerInTheRealWorld: In {{Dream Land}}s and {{Spirit World}}s, there is often an EldritchAbomination who is able to harness the limitless power that exists there. An omnipotent RealityWarper who can fully utilize the concept YourMindMakesItReal. Sadly, the bane of many of these creatures is that this power only exists [[PlaceOfPower in their native world]]. Ergo, if they try something like '''[[WhenDimensionsCollide invading reality]]''' hoping to use their near infinite power to TakeOverTheWorld, they'll usually find that their power didn't make the trip with them. (Note: this is entirely in contrast with the trope's stated identity.)
* WorldsCollide: A literal collision between worlds; see ColonyDrop for this. Alternatively, maybe you were looking for WhenDimensionsCollide instead.
* BigBad.MarvelCinematicUniverse: ''Series/MsMarvel2022'': Najma is Kamran's mother and leader of the exiled Djinn of the Clandestines, who seeks to use Kamala's bangle to '''[[WhenDimensionsCollide tear down the Veil that separates the Noor dimension from Earth]]''' in order to return home, which will destroy Earth in the process.
* Characters.FifteenStrangersRoundOne: WhenDimensionsCollide: It turns out these guys and the Strangers rounds are going through the same thing ''simultaneously'' albeit in different timelines with different outcomes. It's a natural side effect of [[spoiler:the ''massive'' Dragon Break]].
* Characters.KikaiSentaiZenkaigerMovieAndSpinoffExclusiveCharacters: Walds that reuse the designs of pre-existed Walds, and serve as the antagonists of the ''Secret Zenkai Files'' miniseries. Unlike their main series counterparts, they do not seem to represent parallel worlds, thus lacking the power to cause WhenDimensionsCollide and causing considerably less destruction.
* Characters.MegaManBattleNetwork2: AmazingTechnicolorBattlefield: Gospel's BossBattle takes place against a backdrop of a ChunkyUpdraft of the buggy cyberworld collapsing around him and [=MegaMan=], probably because the radiation and Gospel's presence have overloaded '''[[WhenDimensionsCollide the weird interdimensional space Gospel's leader has created]]'''.
* Characters.StarfinderOutsiders: WhenDimensionsCollide: Shodravs distort the boundary between their native Shadow Plane and other planes when they continuously inhabit areas where the Shadow Plane borders another. As the barrier thins, other creatures might inadvertently cross between the planes. In time, the veil can cease to exist altogether, with the Plane of Shadow's features overwriting those of the bordering plane. '''20'''
* DarthWiki.AdrasteiaOfRovesse: ProphetEyes: Her eyes are physically affected following her [[spoiler:breaking free of being puppeted]]. Attempts to heal her eyes magically have temporary and '''[[WhenDimensionsCollide unintended]]''' [[AlienGeometries side]] [[CosmicHorrorStory effects]].
* DarthWiki.PokemonSpiritAndShadow: WhenDimensionsCollide: In ''Pokémon Spirit and Shadow PLUS'', during the climax of Team Helix's plans, after Reflatera enters its [=DayRealm=] or [=NightRealm=] form, it causes the Realm of Day and Realm of Night to merge, which [[ApocalypseHow threatens the world as a whole]].
* Fanfic.ADayInTheLifeOfSyliaStingray: WhenDimensionsCollide: Happens so often on the Fictional multiverse (thanks to a lot of writers) that there is a term for the shards of the universes-that-may-have-been-or-were-for-a-short-while that perform a (well, sort of) successful Incursion into the Core Timeline: "Universe Shrapnel".
* Fanfic.DoubleTeamTrouble: InAWorld WhenDimensionsCollide and all hell breaks loose, the Core Timeline has seen a whole damn lot. Multiple Alternate versions of a single person run around, meet, sometimes [[AlternateUniverseReedRichardsIsAwesome gel]], sometimes [[OtherMeAnnoysMe not]]. The streets call this a "plague" for a reason.
* Fanfic.LikeFatherLikeDaughter: WhenDimensionsCollide: This universe's version of the "Battle For Mewni" sequence has Toffee try to twist the knife further on Moon by destroying her kingdom... by creating a rift to cause it to collide with Gravity Falls.
* Fanfic.PhantomPains: WhenDimensionsCollide: As in canon, Pariah pulls Amity Park into the Ghost Zone after Danny pulls out the Fright Knight's sword in "Evil Overlord".
* Fanfic.TheDigicrestOfEscalation: WhenDimensionsCollide: Over time several areas of Brockton Bay have the barrier between them and their Digital World equivalents increasingly eroded, accelerating Taylor's plans to gain control of said Digital World areas so she can stabilize things and strengthen the barriers to safe levels.
* FateGrandOrder.TropesQToY: WhenDimensionsCollide: A Lostbelt stitches on an AlternateHistory to Earth to rewrite reality in favor of the altered timeline.
* Film/DoctorStrangeInTheMultiverseOfMadness: RealityBleed: "Incursions" are when '''[[WhenDimensionsCollide two or more universes clash]]''', resulting in the annihilation of one or both. Mr. Fantastic claims that it can be as simple as a person from one universe being in another for a long-enough period of time, and prolonged use of the Darkhold's [[DangerousForbiddenTechnique Dreamwalking spell]] has been confirmed to cause it. Sinister Strange's universe shows us the results: reality literally melting with WeirdWeather, GravityScrew and a literal field of bones of what remained of the inhabitant.
* Film/JumanjiWelcomeToTheJungle: ImmortalityField: Downplayed. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], Jumanji remained as a [[AnotherDimension separate world]] that follows VideoGame logic. It gives the players three VideoGameLives each as a form of limited ResurrectiveImmortality. However, in Jumanji where EverythingIsTryingToKillYou and most of them were given {{Weaksauce Weakness}}es, this seems like a fair trade-off.
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The primary thesis here is that two tropes, WhenDimensionsCollide and RealityBleed, are not distinct and should continue to be used as separate tropes.
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[[folder:Wicks]]
* AlienSky: ''TabletopGame/{{Pathfinder}}'': In the Worldwound, an area where '''[[WhenDimensionsCollide the Abyss has leaked into the material world]]''', the sky is as twisted and corrupted as the land. The sky itself, when the near-constant cover of sullen, roiling clouds breaks up, tends to be a variety of unpleasant colors -- gray, green, purple, yellow, red. Oily, foul-smelling and often toxic snow and rain fall from the skies alongside showers of blood, insects, burning ash or worse, and in the most corrupted places even the celestial bodies aren't right -- the sun rises and sets irregularly and in the wrong directions, and the moon and stars often appear too few or too many, or even to be ones which should shine on different worlds altogether.
* AmbiguouslyEvil: ''Webcomic/TheAdventuresOfDrMcNinja'': After [[ItMakesSenseInContext turning Cumberland]] into a TransformingMecha using the Early-Warning Zombie Preparedness System and powered by ghost-haunted lumber from the evil forest, he reveals he's trying to save the Radical Lands by '''[[WhenDimensionsCollide merging them with the Doctor's universe]]''', essentially by [[AwesomenessIsAForce pumping it so full of awesome that the lamest inhabitants die of overload, serving as sacrifices to summon refugees from the Radical Lands.
* AnotherDimension: Listed as one of the "Types of Other Dimensions".
* DeliberatelyMonochrome: ''VideoGame/GreyArea2023'': The titular Grey Area is entirely monochrome (hence the name). Hailey and [[spoiler:the Goddess of Ichor's true form]] are the few sources of color in this area. When Hailey returns to the real world in Chapter 4, she'll point out that "at least it's not grey anymore." In Chapter 5, parts of the real world also become monochrome '''[[WhenDimensionsCollide when the Grey Area starts merging with it]]'''.
* EarthIsABattlefield: ''Fanfic/{{Coreline}}'': WhenDimensionsCollide, the result is every bad guy in almost known work of fiction of humanity fighting against every good guy in almost every known work of fiction of humanity, with an awful lot of people stuck in the middle (and either self-enforcing "TookALevelInBadass" or die). This is a conflict that has gone through hot and cold cycles, with the "CHIMERA War" arc starting on ''Fanfic/CorelineOperationSnakeCharmer'' and ending on ''Fanfic/CorelineOperationEndgame'' being the latest "hot" period.
* ImmortalityField: Downplayed for Jumanji in ''Film/JumanjiWelcomeToTheJungle''. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], it remained as a [[AnotherDimension separate world]] that follows VideoGame logic.
* LayeredWorld: ''Franchise/{{Digimon}}'': The various works in the franchise have at minimum the mundane world and cyberspace in the form of the Digital World. ''Anime/DigimonAdventure'' and ''Anime/DigimonUniverseAppMonsters'' both have the Internet as a separate cyberspace dimension in itself, distinct from the Digital World and connecting it to the material world. Many ''Digimon'' settings also have various other dimensions and in-between worlds with varying degrees of association with the local cyberspace such as [[Anime/DigimonAdventure02 the Dark Ocean]], [[Anime/DigimonXrosWarsTheYoungHuntersWhoLeaptThroughTime the DigiQuartz]], and [[Anime/DigimonUniverseAppMonsters the AR-Fields]]. WhenDimensionsCollide is one of many consequences of these wildly different places coexisting.
* NoEndorHolocaust:
-->'''Twilight''': "[[LetMeGetThisStraight Is that what you're saying?]] That somepony popped Equestria out of our reality and '''[[WhenDimensionsCollide crashed it onto his]]?''' How's that even meant to work? [[SciFiWritersHaveNoSenseOfScale Several trillion tons of continent]] [[ColonyDrop does not make a gentle impact on another world]], not without [[GiantWallOfWateryDoom mega-tsunamis]] and earthquakes that would level entire cities, followed by a dust cloud that would blanket the world in an artificial winter lasting decades! [[WhatHappenedToTheMouse And what about the world we leave behind, what about Equus?]] Would it just carry on spinning without a care, despite having a hole several thousand miles across gouged out of the planet's crust? Even if you didn't breach the mantle, creating a supervolcano that would pull the planet inside-out, the change in mass and absence of the Princesses would throw the sun and moon out of their orbits, causing them to collide, or even worse, [[ColonyDrop to impact with Equus itself!]] [[FridgeHorror Anypony, no, anything, left behind would die, horribly!]] Every griffon, every dragon, zebra, reindeer, whatever!"
* OnceMoreWithClarity: ''WesternAnimation/GravityFalls'': In "A Tale Of Two Stans", during [[spoiler: Ford’s]] explanation of his Portal project, the visuals and his narration suggest that he came up with it on his own before recruiting his friend [[spoiler: Fiddleford]] for help. But two episodes later in "The Last Mabelcorn", he reveals the full story: Bill Cipher was the one who gave Ford the idea for the Portal to give him answers to the origins of Gravity Falls’s weirdness. They worked together to the point where Ford let Bill possess him. Furthermore, in that episode, after Fiddleford accidentally gets sucked into the portal and comes out spouting gibberish, Ford seems to brush him off. However, "The Last Mabelcorn" also reveals that after that incident, he confronted Bill, who revealed '''[[WhenDimensionsCollide his true intentions]]''' to him.
* PatchworkMap: ''TabletopGame/{{Warhammer}} Fantasy'': The Chaos Wastes are a bit at odds with reality thanks to the Realms of Chaos '''[[WhenDimensionsCollide bleeding through from the Polar Gate]]''', so the GrimUpNorth is interspersed with regions of forest, desert, jungle, and even incongruous farmland.
[[/folder]]
[[folder:Wicks]]
* AlienSky: ''TabletopGame/{{Pathfinder}}'': In the Worldwound, an area where '''[[WhenDimensionsCollide the Abyss has leaked into the material world]]''', the sky is as twisted and corrupted as the land. The sky itself, when the near-constant cover of sullen, roiling clouds breaks up, tends to be a variety of unpleasant colors -- gray, green, purple, yellow, red. Oily, foul-smelling and often toxic snow and rain fall from the skies alongside showers of blood, insects, burning ash or worse, and in the most corrupted places even the celestial bodies aren't right -- the sun rises and sets irregularly and in the wrong directions, and the moon and stars often appear too few or too many, or even to be ones which should shine on different worlds altogether.
* AmbiguouslyEvil: ''Webcomic/TheAdventuresOfDrMcNinja'': After [[ItMakesSenseInContext turning Cumberland]] into a TransformingMecha using the Early-Warning Zombie Preparedness System and powered by ghost-haunted lumber from the evil forest, he reveals he's trying to save the Radical Lands by '''[[WhenDimensionsCollide merging them with the Doctor's universe]]''', essentially by [[AwesomenessIsAForce pumping it so full of awesome that the lamest inhabitants die of overload, serving as sacrifices to summon refugees from the Radical Lands.
* AnotherDimension: Listed as one of the "Types of Other Dimensions".
* DeliberatelyMonochrome: ''VideoGame/GreyArea2023'': The titular Grey Area is entirely monochrome (hence the name). Hailey and [[spoiler:the Goddess of Ichor's true form]] are the few sources of color in this area. When Hailey returns to the real world in Chapter 4, she'll point out that "at least it's not grey anymore." In Chapter 5, parts of the real world also become monochrome '''[[WhenDimensionsCollide when the Grey Area starts merging with it]]'''.
* EarthIsABattlefield: ''Fanfic/{{Coreline}}'': WhenDimensionsCollide, the result is every bad guy in almost known work of fiction of humanity fighting against every good guy in almost every known work of fiction of humanity, with an awful lot of people stuck in the middle (and either self-enforcing "TookALevelInBadass" or die). This is a conflict that has gone through hot and cold cycles, with the "CHIMERA War" arc starting on ''Fanfic/CorelineOperationSnakeCharmer'' and ending on ''Fanfic/CorelineOperationEndgame'' being the latest "hot" period.
* ImmortalityField: Downplayed for Jumanji in ''Film/JumanjiWelcomeToTheJungle''. Instead of '''[[WhenDimensionsCollide colliding with the real world]]''' like in [[Film/{{Jumanji}} the first film]], it remained as a [[AnotherDimension separate world]] that follows VideoGame logic.
* LayeredWorld: ''Franchise/{{Digimon}}'': The various works in the franchise have at minimum the mundane world and cyberspace in the form of the Digital World. ''Anime/DigimonAdventure'' and ''Anime/DigimonUniverseAppMonsters'' both have the Internet as a separate cyberspace dimension in itself, distinct from the Digital World and connecting it to the material world. Many ''Digimon'' settings also have various other dimensions and in-between worlds with varying degrees of association with the local cyberspace such as [[Anime/DigimonAdventure02 the Dark Ocean]], [[Anime/DigimonXrosWarsTheYoungHuntersWhoLeaptThroughTime the DigiQuartz]], and [[Anime/DigimonUniverseAppMonsters the AR-Fields]]. WhenDimensionsCollide is one of many consequences of these wildly different places coexisting.
* NoEndorHolocaust:
-->'''Twilight''': "[[LetMeGetThisStraight Is that what you're saying?]] That somepony popped Equestria out of our reality and '''[[WhenDimensionsCollide crashed it onto his]]?''' How's that even meant to work? [[SciFiWritersHaveNoSenseOfScale Several trillion tons of continent]] [[ColonyDrop does not make a gentle impact on another world]], not without [[GiantWallOfWateryDoom mega-tsunamis]] and earthquakes that would level entire cities, followed by a dust cloud that would blanket the world in an artificial winter lasting decades! [[WhatHappenedToTheMouse And what about the world we leave behind, what about Equus?]] Would it just carry on spinning without a care, despite having a hole several thousand miles across gouged out of the planet's crust? Even if you didn't breach the mantle, creating a supervolcano that would pull the planet inside-out, the change in mass and absence of the Princesses would throw the sun and moon out of their orbits, causing them to collide, or even worse, [[ColonyDrop to impact with Equus itself!]] [[FridgeHorror Anypony, no, anything, left behind would die, horribly!]] Every griffon, every dragon, zebra, reindeer, whatever!"
* OnceMoreWithClarity: ''WesternAnimation/GravityFalls'': In "A Tale Of Two Stans", during [[spoiler: Ford’s]] explanation of his Portal project, the visuals and his narration suggest that he came up with it on his own before recruiting his friend [[spoiler: Fiddleford]] for help. But two episodes later in "The Last Mabelcorn", he reveals the full story: Bill Cipher was the one who gave Ford the idea for the Portal to give him answers to the origins of Gravity Falls’s weirdness. They worked together to the point where Ford let Bill possess him. Furthermore, in that episode, after Fiddleford accidentally gets sucked into the portal and comes out spouting gibberish, Ford seems to brush him off. However, "The Last Mabelcorn" also reveals that after that incident, he confronted Bill, who revealed '''[[WhenDimensionsCollide his true intentions]]''' to him.
* PatchworkMap: ''TabletopGame/{{Warhammer}} Fantasy'': The Chaos Wastes are a bit at odds with reality thanks to the Realms of Chaos '''[[WhenDimensionsCollide bleeding through from the Polar Gate]]''', so the GrimUpNorth is interspersed with regions of forest, desert, jungle, and even incongruous farmland.
[[/folder]]
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WhenDimensionsCollide was created in 2012; [[https://tvtropes.org/pmwiki/discussion.php?id=ku8lpuql8smjttjcvuggin5u TLP draft here]]. The page, conveniently enough, already sorted into bullet points. It first describes itself as taking one of two primary forms, copied here as-is:
# A world with overly simple rules and internal logic entered by somebody from an Earth-like world. These works are more prone to humor as the native inhabitants fail to understand or loudly disbelieve things which would be obvious to normal humans.
# A world which has an alien set of physical laws (or somebody from it), that then interacts with an earth-like world. Type II worlds are almost always in the horror genre. Visitors from these worlds are often either {{The Fair Folk}} or {{Eldritch Abomination}}s.
In both cases, the gist with a certain, more or less rigid set of natural laws interacts with or is visited by entities from a world with more complex, looser laws than then function also in the more limited one. The main difference lies in which of the two we, the audience, are more familiar with.
It then presents three conditions necessary for it top apply.
# There must be two independent worlds.
# Something must cross from one world to the other.
# The "laws" of the invading world must work in the invaded world. (For example: if a mage comes from magical world A to mundane world B, it only becomes this trope if the mage can cast magic in the mundane world where magic is normally impossible.)
RealityBleed is defined as "something more gradual".
The description is a little sparse, but it broadly seems to focus on individual entities moving from one universe to the other.
Examples:
[[folder:Characters from one world enter another and retain their native abilities]]
* ''Literature/{{Flatland}}'': A. Square is visited by a sphere from the mysterious dimension of "up" and interacts with the strange world of the third dimension. A sphere manifests as a circle that grows and shrinks, able to bypass all flatlander doors and walls and even touch "inside" a flatlander. The protagonist eventually learns to think multi-dimensionally and is considered insane by most. What makes it this trope is subtle, when taken from one dimension to another (for example when he is in the 3-D world), the normally 2-dimensional A Square is able to perceive higher and lower dimensions. (So in the 3-D world he can see the interior of 2-D people.)
* ''Webcomic/{{Erfworld}}'': The world's rules reflect those of a traditional turn-based tabletop game. For example, terrain is divided into hexes and units can only move a certain number of spaces each turn. The protagonist is from Earth. He experiments with the physical laws of the world in an effort to better understand the rules of the game and attempts to cheat with them (even without cheating, mastering the system makes him a tactical genius). He also has several interesting and unique properties that are a hold-over from reality (such as a lack of visible stats, blood, and the ability to get distracted and forget direct orders).
* ''Webcomic/UnicornJelly'': The dimension of Tryslmaistan periodically intersects with other dimensions, including that of Earth, leaving those residing in those portions of the other worlds stranded in Tryslmaistan. While the physics (and inhabitants) of Tryslmaistan are somewhat hostile to terrestrial life, it is similar enough that human castaways are able to form a civilization on the Myrmil Worldplate [[spoiler: before catastrophe struck and they needed to move on to other Worldplates]]. The DistantFinale shows a group of Humano-Jellese welcoming a new group of castaways from yet another dimension.
* ''Anime/ReCreators'': Characters from various fictional worlds appear in the real world, and any superpowers they have still work. Eventually, characters are fighting each other with powers from different fictional worlds, in a world that shouldn't even have physics that support these powers. Meteora is a little concerned that this might destabilize reality.
* ''Film/{{Jumanji}}'': The flora and fauna of Jumanji that invades the "real world" is able to do things that would be impossible for real life equivalents (monkeys that can ride a motorcycle, plants that grow incredibly quickly, a pelican that can fly the board game without trouble etc...)
* ''Film/LastActionHero'' is a quasi-example. On the one hand, when an action hero crosses over from the world of movies into the real world, he nearly dies from a gunshot he'd normally shrug off as JustAFleshWound; similarly, a villain who makes the same leap is delighted to discover that in the real world [[TheBadGuyWins the bad guy winning]] is actually possible. However, when Death crosses over into reality from the movie world, he's still able to kill people just by touching them. We also see that, when the movie hero shoots the movie villain in his cybernetic eye, it causes a ridiculously huge explosion, even when they're both in the real world. It could be said to be somewhat consistent since only supernatural or futuristic elements kept their original properties.
* ''Literature/CthulhuMythos'': The stories often involve aliens that dwell in more than the traditional three dimensions and who occasionally interact with Earth. The twisting of logic and geometries involved by interacting with these alien space gods usually drives people mad as they are unable to comprehend them.
* ''Series/StarTrekVoyager''. PlayedForLaughs in [[Recap/StarTrekVoyagerS5E12BrideOfChaotica "Bride of Chaotica!"]] where energy beings from another dimension mistake ''Film/TheAdventuresOfCaptainProton'' for reality and go to war with the EmperorScientist supervillain. Unfortunately they can't detect our dimension so don't believe Voyager's crew telling them [[YouJustRuinedTheShot it's just a holodeck program]].
[[/folder]]
[[folder:One world's natural laws or landscape begin to be overwritten by another's]]
* ''Film/Barbie2023'': This is part of the nature of Barbieland as a {{Tulpa}} dimension formed of thoughts and ideas, as real world concepts inherently shape it. However, properties of the real world such as depression, cellulite, and other aspects of genuine humanness that are not usually present in Barbies begin bleeding over into Barbieland [[spoiler: due to America Ferrera's character's imagination affecting Barbies]].
* ''Manga/{{Uzumaki}}'': The inhabitants of a small isolated town begin to notice a repeating spiral pattern that manifests in a number of disturbing ways. People, objects, plants, galaxies, space and time eventually twist into a spiral shape drawing the inhabitants in. The closing scenes show the spiral world below and the narration suggests that this spiral world invades the mundane on a regular basis, leaving only ruins behind when things return to normal.
* ''Fanfic/BloodOnTheHandsOfAHealer'': Thanks to the activation of [[TheMostDangerousVideoGame Kamen Rider Chronicle]], the real world has become a fictional world in of itself due to it becoming a video game, allowing the crossing over of ''other'' fictional worlds and characters into there.
* ''Fanfic/TheConversionBureau'': Equestria has been transplanted to Earth in the future, not too far off the shore of the USA, by forces unknown. Its magical field is slowly expanding to cover the planet. The field purifies any air, soil, water, plant life, and so on within. Unfortunately, the magic is fatal to humans and the expansion is beyond the power of the Princesses to stop. A special potion is devised to transform humans into ponies, changing their bodies while preserving their minds and souls, to let them survive. This is what happens at the eponymous bureaus. In spite of technological advances, Earth is presented as an EarthThatUsedToBeBetter, with deliberate implication by the author that some event between the present day and the fic's time left a lingering effect that causes much of humanity to essentially act [[WesternAnimation/MyLittlePonyTheMovie1986 smoozed]]. Ponification undoes this, often causing the transformed to feel very chipper.
* ''Fanfic/OversaturatedWorld'': This is the ApocalypseHow trying to be solved in the first story, as a full collision would lead to the annihilation of both universes.
* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': After Human Twilight's device absorbs the magic of the portal, it starts tearing open portals between the human world and Equestria whenever it is opened, allowing through things like [[FearsomeCrittersOfAmericanFolklore jackalopes]] and [[ManEatingPlant Man-Eating Plants]]. When Twilight transforms into Midnight Sparkle, she [[spoiler:starts ripping holes to Equestria to access the magic there, not caring that she's destroying her own world in the process]].
* ''Literature/AlternateRoutes'' by Creator/TimPowers: A secret government project is studying an otherworld where the laws of reality are much looser. Over the course of the novel, it increasingly leaks into our world, and it turns out the villain is trying to merge the two worlds entirely, which would result in our physical laws being dissolved in the otherworld's chaos.
* ''Literature/BattleGround'': {{Defied|Trope}} when a DivineConflict takes place in Chicago. The magical power involved is so great that the {{dragon|sAreDivine}} Ferrovax's sole task in the battle is to prevent the the physical world and the [[LandOfFaerie Nevernever]] from collapsing into each other.
* ''Literature/DoctorWhoMissingAdventures'': In ''Millennial Rites'', our universe gets merged with both the one that preceded it ''and'' the one that will follow it, [[EldritchLocation becoming a trifold realm being slowly torn apart by its three mutually-conflicting sets of physical laws]]. London becomes known as the Great Kingdom, ruled by the gods the Great Intelligence ([[Franchise/CthulhuMythos Yog-Sothoth]], of the Pre-Universe), [[EldritchAbomination Saraquazel]] (of the Post-Universe)... and [[AnthropomorphicPersonification Lady TARDIS]] (of... guess where). Notably, none of the three planned this, and only the Great Intelligence is at all pleased with the results.
* ''Literature/TheGodsThemselves'': The plot revolves around a discovery of how to exchange matter between parallel universes and get free energy out of this. The protagonist slowly realizes that, as they exchange matter between worlds, some of the cosmological constants also change very slightly, but enough to have potentially apocalyptic consequences.
* ''Literature/RodAllbrightAlienAdventures'': The second book in the series reveals that BKR and Smorkus Flinders were working on this, intending to create a permanent door between Dimension X (home of Reality Quakes, which periodically cause random and usually temporary shifts in reality, although the effects are sometimes permanent) and Dimension Q (where Earth exists) that would let the Reality Quakes leak over and eventually fuse them into one dimension "where reality can shift like sand" (BKR's motivation is pure nastiness, while Smorkus Flinders, who was once a normal being until a Reality Quake permanently transformed him, is doing so as a means of lashing out at the world in retaliation). However, after Smorkus Flinders is taken into captivity and BKR subsequently ''escapes'' from custody, the latter decides to focus on one of his other, older plans instead.
* ''Franchise/TheWitcher'': In the backstory, the Conjunction of the Spheres was an event where a bunch of dimensions intersected at the same time and dumped several unnatural things into the world, including monsters, magic, [[spoiler:humans in flying metal airships and elves]] into the world, unfortunately for the planet's original inhabitants: [[spoiler:dwarves]].
* ''Series/{{Fringe}}'': The space-time continuum is breaking down due to contact between the two universes, which are implied to have slightly different physical laws (the show is inconsistent on that point, though) and to be bleeding into each other.
* ''Series/TheWitcherBloodOrigin'' concludes with a front-row seat to the Conjunction of the Spheres. Orange fire burns at the edges of interdimensional portals in the sky, revealing multiple planets from a satellite view. These portals merge and give the appearance of WhenThePlanetsAlign, concluding with some kind of ''flash'' that leaves everyone in all worlds unconscious as volumes are swapped with one another. The first survivors are beached on the shores[[note]]implying that the differences in heights at swap meant the highest survival rate was with those who were in seaworthy ships at the time[[/note]] who start asking each other questions only to discover they speak wildly different languages. The details are fudged from the original novels, [[spoiler:as elves had already conquered the world of the dwarves 1,500 years ago, and some of the humans transported were still in the Age of Sail rather than post-cyberpunk]].
* ''TabletopGame/DungeonsAndDragons'': [[EldritchLocation The Far Realm, a Lovecraftian non-place outside of reality]], sometimes encroaches on the Material Plane through "cerebrotic blots" -- places where the laws of physics are subtly distorted. Some blots have [[LayeredWorld a second layer]] accessed through invisible portals, which is BiggerOnTheInside and far more heavily corrupted.
* ''TabletopGame/{{Eberron}}'' has a milder example in the form of manifest zones, where traits from another plane impose themselves on the material world. While some of these are harmful, others are beneficial. [[SkyscraperCity The massive towers of Sharn, the world's largest city]], for instance, can only support their own weight due to being built in a manifest zone to Syrania, the plane of air. Each plane also has an astrological "orbit" which can have effects on the world as a whole, such as resurrection magic acting strangely if the realm of the dead is too near or too far.
* Creator/GamesWorkshop: The Realm of Chaos in ''TabletopGame/{{Warhammer}}'' and ''TabletopGame/Warhammer40000'' is a mirror universe with physical laws vastly different from our own. Wizards/Psykers can tap the Realm of Chaos for power, but they risk physical mutation and insanity. Further, if for any reason the boundaries between universes are weakened, the Realm of Chaos will begin to overwrite physical reality, twisting living beings, inanimate matter and physical laws to increasingly severe degrees until the area is wholly absorbed into the Realm of Chaos itself.
* ''TabletopGame/MagicTheGathering'': In the Invasion storyline, the Phyrexians invaded Dominaria by merging it with an already-conquered plane called Rath. Dominaria was warped to incorporate locations and inhabitants from Rath (including the Phyrexian army), sometimes warping individual creatures or structures into hybrids combining both planes and sometimes simply dumping creatures and entire geographical features from Rath into Dominaria, such as the Skyshroud (an expansive jungle floating like a raft over the sea) getting plopped in the middle of the frozen north.
* ''TabletopGame/{{Pathfinder}}'': The setting's most notable example is the Worldwound, an enormous HellGate to the Abyss that swallowed most of a nation. Besides being filled with demons, the influence of numerous {{demon lords|AndArchdevils}} and the Abyss itself have twisted the surrounding land into something horrible. The remaining plants and animals are either undead or horribly mutated, the land is barren, blasted and wracked by earthquakes and geysers of filthy water, most lakes and rivers have drained into rifts to the Abyss, [[AlienSky the sky is tinted in strange colors]], snow and rain are oily and foul or replaced by insects, blood or worse, and in the most corrupted places even the sun, stars and moon don't look or move like they should.
* ''TabletopGame/WitchHunterTheInvisibleWorld'': Hellpoints are direct doorways to Hell itself. The areas around them are filled with malign influence and evil creatures. Demons may easily enter the world at these places.
* In the latter half of ''VideoGame/DigimonStoryCyberSleuth'' and its {{interquel}} ''VideoGame/DigimonStoryCyberSleuthHackersMemory'', the BigBadEnsemble manages to successfully merge [[{{cyberspace}} the Digital World]] with reality, resulting in confused [[{{mons}} Digimon]] running amok across Japan and [[GameplayAndStoryIntegration hackers being able to execute programs that function in the real world]].
* ''VideoGame/GreyArea2023'': In Chapter 5, [[spoiler:Hailey finds that various dimensions, including the Grey Area, are starting to merge with her reality]].
* ''VideoGame/TheLegendOfZeldaTwilightPrincess'': The Encroachment of the Twilight Realm upon Hyrule, which fills the region with terrifying beasts, many of them former natives and wildlife of the land corrupted into monstrous forms by the Twilight, and turns humans and hylians into spirits (and in Link's case, [[{{Animorphism}} a wolf]]). Unlike most {{Dark World}}s seen in the Zelda series, very little of the Twilight Realm itself is seen except when overlaid onto Hyrule.
* ''VideoGame/TheLongestJourney'': The technological world of Stark and the magical Arcadia are usually insulated from each other. However, when the Balance between them begins to falter in the beginning of the game, weird stuff begins to happen in both worlds, such as a TV show about rainforests transporting the viewers into an actual rainforest, or a handheld calculator trapping a mage tampering with it inside.
* ''VideoGame/PuyoPuyoTetris'': The ExcusePlot for Story Mode is that the worlds of ''Puyo Puyo'' and ''Tetris'' are colliding for some reason, causing Primp Town to be covered in Tetriminoes and Tee's spaceship to be flooded with Puyos.
* ''VideoGame/ShadowWarrior2'' sees the Shadow Realm merging with the human world as a result of Lo Wang's actions in the first game, with the wildlands constantly changing, creating a strange and savage new order where humans and demons live side by side.
* ''VideoGame/WildArms2'': The source of most of the plot's conflict is an "encroaching AlternateUniverse". The only way to fight this is through a LOT of magic and plot twists that temporarily give it physical form.
* ''VideoGame/XenobladeChronicles3'': Aionios is a result of the worlds of [[VideoGame/XenobladeChronicles1 Bionis]] and [[VideoGame/XenobladeChronicles2 Alrest]] [[spoiler:coming into contact and colliding. The people of both worlds build an ark--Origin--that would record the lives and data of the worlds and their people in order to reboot them after the collision annihilates both worlds. However, Z, the embodiment of humanity's anxiety over Origin's success, hijacked Origin, froze both worlds mid-collision, and created Aionios as an "endless now" where no one has to worry about the future. The protagonists' goal is to defeat Z and get Origin running again, at the cost of Aionios and the new life that spawned there. The ending as well as the prequel DLC ''[[VideoGame/XenobladeChronicles3FutureRedeemed Future Redeemed]]'' shows that Origin succeeds, and the worlds eventually merge properly without destroying each other.]]
[[/folder]]
[[folder:Both; travelers herald or cause the general merging]]
* ''Film/DoctorStrange2016'': Near the finale, Strange introduces the normally timeless Dormammu to the concept of time he explicitly brings with him from Earth. The prospect of [[spoiler:being stuck in an endless time-loop is so terrifying that Dormammu agrees to leave the Earth in peace, never return, and take his Zealots with him]].
* ''Film/{{Pleasantville}}'': The protagonists are high school students from our world who enter the world of a black and white 1950s TV serial, in which everything is excessively pleasant and patterned after '50's moral standards (besides colour, there's also no rain, crime, homelessness, fire, sex or toilets). Throughout the film, the protagonists' actions impact the world around them and colours and concepts from the real world (like fire, sex and rain) start to appear as a result.
* ''ComicBook/JudgeDredd'': In "Helter Skelter", interdimensional travel by supervillains from other universes starts to fracture the fabric of reality, causing elements from different dimensions to bleed over into each other. One alternate dimension in particular is referenced that collided completely with another one, [[MergedReality merging the two]] into a never-ending WorldOfChaos.
* ''Policing the Fellowship'', a ''Literature/{{Discworld}}''[=/=]''Literature/TheLordOfTheRings'' CrossOver fic, has Samuel Vimes accompany the Fellowship of the Ring. Over the course of the story, the fellowship characters start acting like Discworldian archetypes of themselves (Aragorn starts acting like an UpperClassTwit -- albeit still a far more competent one than most Discworld nobility, the various nobles the group encounters become much more cynical, etc.). On the flipside, without Vimes, the Discworld becomes more like Middle-Earth, with Captain Carrot (long-lost heir to the throne, who prefers to be a policeman) manifesting the same kind of white flame on his brow that Aragorn does, and being propositioned by three elven princesses. This is somewhat downplayed, however, as the first one was bitten by Angua (Carrot's werewolf girlfriend), the second one's pointy ears washed off in the rain, and the third turned out to be Nobby Nobbs, who was "just getting into the spirit of things".
* ''WesternAnimation/SpiderManIntoTheSpiderVerse'': The plot is driven by the Kingpin's use of an atomic collider to create an interdimensional bridge. At first this simply pulls multiple versions of Spider-man into the movie's main universe, but as Kingpin continues his experiments multiple versions of New York start to be overlaid onto one another in a highly disruptive manner that risks causing the creation of a black hole unless stopped.
* ''Series/BuffyTheVampireSlayer'': In Season Five, the exiled hellgod Glory is trying to re-enter her dimension, but the effort would cause all dimensions to collide (thus [[ApocalypseHow/ClassZ destroying the multiverse]]). Small glimpses of this process can be seen in "[[Recap/BuffyTheVampireSlayerS5E22TheGift The Gift]]", when places on Earth get changed and twisted and creatures from other dimensions including Xenomorph-like demons and a dragon enter our realm.
* ''Series/StarTrekTheNextGeneration'': In [[Recap/StarTrekTheNextGenerationS6E5Schisms "Schisms"]], aliens from another universe with very different physical laws invade the main universe and start running experiments on the ''Enterprise'' crew. They manage to create a temporary environment where the laws of physics allow inhabitants from both universes to co-exist, but normal parameters within that universe do pretty crazy things to people's body chemistry.
* ''TabletopGame/DarkConspiracy'': Parts of the U.S. have been taken over by Dark Minions invading through portals from their home dimensions. These areas are known as "Demonground", and they're filled with the corruption flowing from the portals. Common elements include bizarre vegetation and weird organic tunnels.
* ''TabletopGame/{{TORG}}'': The Earth is invaded by a number of other worlds that each have their own genre-like set of laws that overwrite those of mundane reality when they take over a specific area. In the prehistoric-themed North America, for instance, technology does not work and groups of people devolve into small tribes, whilst in the Pulp-themed Middle-East people drift into stereotypes, their allegiances become easily changeable and good triumphs over evil. The playable characters are those rare individuals who are able to carry their own native laws of physics around with them and exercise them against others.
* ''TabletopGame/WitchCraft'': In "Armagedon", elements of this appear in areas that are captured by the enemy, such areas are changed radically into something alien and inhospitable to normal life as we know it. Victims end up fused together in collective masses of flesh and otherwise twisted beyond all recognition.
* ''WesternAnimation/GravityFalls'': According to the Author of the Journals, the weirdness of the titular town is largely being drawn from a decaying parallel dimension of chaos and nightmares. The ultimate plan of the BigBad [[spoiler:[[EldritchAbomination Bill Cipher]]]] is to merge this [[EldritchLocation Nightmare Realm]] with the physical world in order to turn it into a [[SurrealHorror nightmarish]] WorldOfChaos for him and the rest of the Dream Demons to [[ToCreateAPlaygroundForEvil invade and rule as their personal playground]]. After [[spoiler:Bill]] successfully unleashes Weirdmageddon upon Gravity Falls in the finale, Dipper must find and rally his allies to fight back and liberate the town before Bill can spread his influence throughout the entire universe.
* ''WesternAnimation/TheRealGhostbusters'': In "Knock, Knock", after opening a doorway that was supposed to remain closed until Doomsday, the ghost world starts entering our plane and turning things into monstrous versions of themselves (for example, trains into worm-like monsters). This was intended to be what would happen to the world AfterTheEnd.
[[/folder]]
[[folder:Other]]
* ''Franchise/{{Nasuverse}}'': Background material speaks of [[EldritchAbomination Type Mercury]], the avatar of Planet Mercury, which crash landed in a South American rainforest in 5000 BC after [[Literature/AngelNotes answering Gaia's call]] prematurely[[note]]It wasn't actually supposed to come until the Earth dies of pollution, at which point it is to wake up and exterminate humanity in revenge. The other Types arrive on schedule.[[/note]]. Mercury's crash site has since transformed into a "Crystal Valley" filled with [[AlienGeometries beautiful yet horrifying]] crystal spires. This is a replication of planet Mercury's environment, and Type Mercury's mere ''presence'' has turned that patch of Earth into a patch of Mercury. It is said that its full force is activated by Type Mercury's movement, which means wherever it goes, it will leave a trail of Mercurian crystal. '''Basically Type 3, but just from another planet.'''
* ''VideoGame/CorpseParty'' takes this trope to extreme lengths. The protagonists are trapped in what are mentioned "closed spaces layered over closed spaces". In each chapter, the main characters you play as are all in the same school, but a different rendition of it, with events [[TimeyWimeyBall taking place before or after each other]] that seep into the others' dimensions. Best example is [[spoiler:how Ayumi leaves candles for others that act as a SavePoint after she and Yoshiki look for Seiko when she screams... yet when you play as Naomi and Seiko in Chapter 1, ''the candles were already there'']]. '''Non-linear time; no discussion of cross-universe interactions.'''
[[/folder]]
* Travelers from another world who retain their native abilities: 8/50 = 16%
* One world overwrites or fuses with another: 28/50 = 56%
* The first case causes or heralds the second: 12/50 = 24%
* Other: 2/50 = 4%
As a first analysis, this page leans the most heavily towards the concept of two universes merging wholesale with one another, sometimes with travelers "dragging" their home universe with them but most often not. This contrasts, notably, with the way the description frames it. The name may be an issue -- "When Dimensions Collide" doesn't really bring to mind individual travelers as the first thing. It also does not seem to favor abrupt transformations -- some are, some are undescribed, and many happen gradually and by stages, which contradicts how it distinguishes itself from RealityBleed.
With that in mind, what does RealityBleed look like?
It was created in 2010; [[https://tvtropes.org/pmwiki/discussion.php?id=9h9fox4oa6q42yp79lw7tq0e TLP draft here]]. It opens by defining itself as "where one version of reality is gradually overwritten by another. Unlike when we go DownTheRabbitHole, the alternate reality comes to us and begins to infringe on the real world." The description after that is a little sparse and rather disjointed, but seems to generally focus on this happening in a gradual manner ("This generally begins a little at a time — an anachronistic lamp or the wrong face on a coin — but it gets worse until the process is stopped or it completely supplants the original reality.") and on questioning whether the altered world was real at all ("Due to the questionable reality inherent in the presentation of this trope, often the world being changed wasn't real to begin with. Sometimes it's even the real world which infringes on the false reality.")
Examples:
[[folder:Sudden/violent merger of worlds]]
* ''Manga/{{Berserk}}'': The BigBad and RealityWarper ''extraordinaire'' Femto is able to [[spoiler:redirect the force of Skull Knight's attack using a sword able to cut the fabric of reality itself so as to cause the various supernatural layers of the LayeredWorld to fuse with the mundane layer in which we exist]]. The end result is that AllMythsAreTrue and [[EverythingIsTryingToKillYou most of them want to eat you]].
* ''ComicBook/WorldsCollide1994'': The BigBad Rift merges Dakota with the ravaged Metropolis. Many people die as a result of the bungled merging.
* ''Fanfic/DangerThanFiction'': At the end of the story, the bookwalking spell begins to break down. This results in different versions of the same book merging (like "Jack and the Beanstalk") or completely different stories getting mashed together because of vague similarities in setting (like the ''Rime of the Ancient Mare-iner'' / ''Iron Filly'' / ''Moby-Dick'' / ''Arthur Gordon Pym'' crossover at the end).
* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': The human Twilight's pendant keeps causing a ManaDrain on the Humane Six, and after it drains Sunset's magic while she's touching the portal, it causes portals to Equestria to appear every time it opens. [[spoiler:When Twilight becomes Midnight Sparkle, she starts ripping holes into Equestria purposefully, causing reality to fracture, uncaring that she's destroying her own world in the process even after Sunset points it out]].
* ''WesternAnimation/TheSuperMarioBrosMovie'': [[spoiler: During the climax, Mario destroys the interdimensional Warp Pipe with a Banzai Bill, leading to a chunk of the Mushroom Kingdom, including all of Bowser's Castle, being transported to the streets of Brooklyn.]]
* ''Literature/LordsAndLadies'': When TheFairFolk invade Lancre, their country tries to come through as well, CropCircles being caused by this. At one point the characters witness the two realities fighting for supremacy.
* ''TabletopGame/MagicTheGathering'': Yawgmoth's plan for his Phyrexian forces to invade Dominaria wasn't a conventional assault, but by overlaying the plane of Rath over his target.
* ''TabletopGame/Warhammer40000'': The Warp is the realm of emotion and demons, where FTL ships travel and from which psychic power is derived, and fortunately has very little crossover with reality. Until you go to the [[NegativeSpaceWedgie Eye of Terror]], of course, an area of the Milky Way where the warp and the Materium intersect, born from the creation of the last Chaos god(dess). The Traitor Legions who gave themselves to Chaos ten millennia ago still live here, periodically launching Black Crusades on the rest of the galaxy.
* ''VideoGame/StrongBadsCoolGameForAttractivePeople'': A malfunctioning Trogdor cabinet leads to Free Country USA being combined with the worlds of assorted {{Fictional Video Game}}s.
[[/folder]]
[[folder:Gradual fusion/crossing between worlds]]
* ''ComicBook/{{DCRWBY}}'': The presence of Grimm in Gotham City is causing normal humans (including Batman) to gain Semblances while Team RWBY suddenly experience a FisherKingdom moment with their looks and weapons being changed.
* ''ComicBook/TheKingdomDCComics'': Aspects of the multiverse began to appear inside the Planet Krypton restaurant Batman is in.
* In ''[[Recap/MyLittlePonyFriendshipIsMagicIDWIssue17To20 Reflections]]'' story arc of ''ComicBook/MyLittlePonyFriendshipIsMagicIDW'', due to young Celestia's frequent travels to AlternateUniverse in order to meet [[StarCrossedLovers her lover]], there is a growing {{Synchronization}} between Prime!Equestria and Mirror!Equestria as two parallel realities become gradually more intertwined -- to the point that actions taken in one of them directly affect the other one. It ranges from minor, inconsequential things (like cooks making the same dish on the same day) to crucial events (like previously righteous Mirror!Luna [[FaceHeelTurn falling to the dark side]] when Prime!Luna [[HeelFaceTurn is returned to the side of good]]). In the story arc's climax, both universes begin to effectively merge with each other as ''walls between realities fall down entirely''.
* ''Film/TomorrowCalling'' (an adaptation of ''The Gernsback Continuum'' by Creator/WilliamGibson): A photographer starts hallucinating giant propeller-driven flying wings and CrystalSpiresAndTogas, the "semiotic ghosts" of an [[ZeeRust envisioned reality that never happened]]. To get rid of them he reads tabloid trash and watches porn movies, to drive away this perfect alternate future with our own sordid reality.
* ''Literature/TheEyesOfKidMidas'': The AmuletOfConcentratedAwesome gradually reshapes reality around the protagonist's dreams as he loses control of its power.
* ''Literature/GoodOmens'': A powerful and impressionable young RealityWarper reads too many New Age magazines, and causing [[ConspiracyKitchenSink things like Tibetan tunnels and alien visitations to start becoming true]].
* ''Literature/TheKingOfElflandsDaughter'': First, trolls and other denizens of Elfland begin to intrude in Erl, then a unicorn is spotted. In the end, [[spoiler:the King uses his third spell to expand Elfland's reality and makes Erl part of it]].
* ''Literature/ThePlaceOfTheLion'' by Creator/CharlesWilliams: The higher reality of Platonic archetypes begins bleeding through into our world, replacing all the mundane examples of each Platonic Form. So, for instance, the titular Lion, which represent Power, starts draining all the strength and energy out of everything near it.
* ''Literature/{{Swellhead}}''. The British government sends a team to investigate why an ElaborateUndergroundBase has appeared out of nowhere on the island of Skerra. Turns out an alternate reality--in which one member of the team is a supervillain and the other his James Bond-type antagonist--is bleeding into ours.
* ''Series/BuffyTheVampireSlayer'': Happens in the season 5 finale when Glory uses Dawn's blood to lower the barriers between worlds and things start bleeding together until the portals can be closed (by Buffy's death).
* ''Series/{{Fringe}}'': There's an alternate dimension, and the walls are breaking down. Things in one universe begin to affect the other, or are even forced to exist in the same place at the same time, to disastrous effect. The other world has it worse and is becoming nearly unlivable, but "ours" is on the same path, and if unchecked, both worlds will be destroyed.
* ''Series/KamenRiderGaim'': The otheworldly Helheim Forest is beginning to leak into our world. However, it gets much more complicated than that before it's over.
* ''Series/TheTwilightZone1985'': In "Wordplay", a man is having trouble learning a new product line, and the words start replacing regular words, a little at a time. Pretty soon no one can understand him, and he can't understand them -- even though they're using the same words, they mean totally different things. [[spoiler:Or, he had a stroke.]]
* ''TabletopGame/{{Exalted}}'': Creation itself is a reality as defined by Primordials, which was grown by devouring the Wyld and absorbing everything. This is not a good thing if you're a Raksha. Inversely, when the reality of Creation doesn't keep the Wyld at bay strongly enough, it creates [[RealityIsOutToLunch all sort of interesting effects]] as the chaos and narrative logic of the Wyld starts to overlay, mutate, and eventually dissolve Creation.
* ''TabletopGame/WerewolfTheForsaken'' has places called verges where the spirit world bleeds into the real world.
[[/folder]]
[[folder:Gradual fusion/crossing between time periods]]
* Tomorrow Man, Zarrko the time traveler, is introduced in a Hulk story arc as existing in perception of fourth dimensional space. His presence gives off an energy that causes different time periods to bleed into the present moment, illustrated as bystanders switching to different period clothes from across the world between panels without noticing.
* ''Fanfic/OnTheEdgeOfTheDevilsBackbone'': Mustafar has a mental version of this, thanks to being an Eldritch Location. While being interrogated, Kanan sees glimpses of the past, the canon timeline, and possibly the future.
* "I'm Scared", an early story by Jack Finney, has a temporal variant in which elements of the past begin to appear in the present. (e.g., the sudden appearance on the outside of a house of a wide strip of the original paint from decades before.) These elements begin growing in size and effect as the story progresses.
* ''Literature/JefftyIsFive'': Jeffty is a boy who has remained five years old for over twenty years. He can listen to old radio shows on his radio... yet they are new episodes of the shows, episodes that have never existed in the "real world". He can buy comics such as ''ComicBook/TheShadow'' and ''Literature/DocSavage'' that are, again, all-new although they are no longer being produced, not to mention long-discontinued pulp magazines with new stories by Stanley G. Weinbaum, Creator/EdgarRiceBurroughs and Creator/RobertEHoward despite the authors being long dead. As reality begins to bleed over into Jeffty's world, it isn't pretty.
* ''Series/DoctorWho'' features several stories where temporal events cause bleedover from other time periods, including [[Recap/DoctorWhoS9E1DayOfTheDaleks "Day of the Daleks"]], [[Recap/DoctorWhoS11E2InvasionOfTheDinosaurs "Invasion of the Dinosaurs"]] and [[Recap/DoctorWhoS21E2TheAwakening "The Awakening"]]. Perhaps the ultimate example is [[Recap/DoctorWhoS32E13TheWeddingOfRiverSong "The Wedding of River Song"]], where all of Earth's history starts happening at the same time, and only the Doctor realises anything is wrong.
* ''Videogame/RadiantHistoria'': The game requires the player to alternate between two timelines where actions of the player in one have changing effects in the other.
* ''VideoGame/BioShockInfinite'' takes place in the city of Columbia, where due to the background presence Elizabeth -- a [[DamselInDistress caged]], but increasingly powerful RealityWarper -- is frequently infested with "Tears" into {{Alternate Universe}}s. ''Infinite'' effectively uses these quantum anomalies as its AppliedPhlebotinum, factoring in both the gameplay (Elizabeth can summon goodies from other universes to assist in combat) and in the plot (where [[GoingCosmic the nature of the multiverse and crossover therein becomes increasingly more important for its resolution]]).
* ''VideoGame/{{Control}}'' establishes the physical realm, as well as the Astral Plane, an anomalous psychic dimension of [[BlankWhiteVoid mostly white void]] primarily occupied by the Federal Bureau of Control's ultimate overseer and [[EldritchAbomination ontologically ambiguous entity]], [[MysteriousBacker the Board]]. The plot of the ''Foundation'' DLC hinges around parts of the Astral Plane merging with the caves below the FBC's headquarters -- creating odd sights like a long-abandoned restroom [[NonSequiturEnvironment leading into fragmented white space]] -- due to damage towards [[CosmicKeystone a universe-binding structure called the Nail]], with the mission being to repair it to stop the bleeding.
* ''VideoGame/GuildWars Nightfall'': The world that the players inhabit becomes more like the Realm of torment as the game goes on. Completing the bleed is the goal of the bad guys, while the players are attempting to stop and reverse the process. A couple of zones actually change for particular missions in the story, and later zones in the story have a more ''Nightfallen'' feel to them as the process occurs.
* ''VideoGame/NanashiNoGame'': The haunted video games begin to make themselves more and more apparent in the real world.
* ''VideoGame/Persona4'': The mysterious fog from the [[MentalWorld Midnight Channel]] begins to form a perpetual cloud over Inaba in the last act of the game [[spoiler:as a result of [[BigBad Adachi]]'s plan to cause TheEndOfTheWorldAsWeKnowIt and [[MergedReality merge the two realities]], [[StrawNihilist allowing the Shadows to run wild in the real world and kill people indiscriminately]].]]
* ''WebAnimation/HomestarRunner'': Many things that are considered part of the overall Homestar Runner universe such as Trogdor the Burninator, Sweet Cuppin' Cakes and Limozeen started as Strong Bad's random ruminations before bleeding into the world proper. This has been lampshaded at least once.
[[/folder]]
[[folder:Other]]
* ''Series/StarTrekTheNextGeneration'': An odd inversion occurs in "Remember Me"; [[spoiler:the false reality Dr. Crusher experiences begins to disappear, with people and objects disappearing until the whole universe was the size of a room, populated by one person]].
[[/folder]]
[[folder:ZCE]]
* ''Anime/{{Noein}}'': This is an effect of Haruka's power.
* ''Anime/ParanoiaAgent'', made by the [[Creator/SatoshiKon same creator]] as ''Paprika''... [[MindScrew at least, we]] ''[[MindScrew think]]'' [[MindScrew that's what's going on]].
* ''Manga/ThoseWhoHuntElves'': This happens towards the end.
* ''Comicbook/AnimalMan'': In Morrison's run, a second ''Crisis'' starts, resulting in multiple forgotten "ideas" bleeding into one another. '''Really unclear what this is talking about.'''
* ''ComicBook/EmperorJoker'': After the Joker recreates reality in his own image, tiny reality bleeds from what used to be the real world provide hope for the heroes. '''Does not qualify what a reality bleed is.'''
* In the ''ComicBook/XMen''[=/=]''ComicBook/FantasticFour'' crossover "Days of Future Present," this is caused by the [[spoiler:ghost of]] Franklin Richards from the ''ComicBook/DaysOfFuturePast'' storyline.
* ''Film/EXistenZ'' calls this a "reality bleed-through effect".
* ''Film/{{Franklyn}}'' includes one of the rare instances when a reality bleed manages to occur quite quickly. ('''Note: you may notice from the above folders that this is not especially rare.''')
* ''Film/OverdrawnAtTheMemoryBank''. In this case, it is the main character's own mind that overwrites a fictional reality.
* ''Literature/GhostFinders'': In ''Ghost of a Smile'', the transfigured New People distort reality by their very presence.
* Creator/PhilipKDick loved this trope and used it in many of his works:
* ''Literature/{{Ubik}}'': Glen Runciter's image begins to manifest itself everywhere. And then, although the story is set in 1992, the year 1939 tries to get in on the action.
* ''Literature/ToVisitTheQueen'': The protagonists have to stop one of these.
[[/folder]]
* Sudden/violent merger of worlds: 9/50 = 18%
* Gradual fusion/crossing between worlds: 15/50 = 30%
* Gradual fusion/crossing between time periods: 12/50 = 24%
* Other: 1/50 = 2%
* ZCE: 13/50 = 26%
An addition variable: a number of examples are present in both pages that list the same works and incidents as examples of both tropes. The full list runs thusly:
[[folder:Duplicates]]
* ''Film/{{Pleasantville}}'': The protagonists are high school students from our world who enter the world of a black and white 1950s TV serial, in which everything is excessively pleasant and patterned after '50's moral standards (besides colour, there's also no rain, crime, homelessness, fire, sex or toilets). Throughout the film, the protagonists' actions impact the world around them and colours and concepts from the real world (like fire, sex and rain) start to appear as a result. -- '''WDC'''
* ''Film/{{Pleasantville}}'': After the two protagonists enter the black-and-white world, larger and larger splotches of color become apparent, until the entire world is in color. By the end, [[spoiler:the simplistic TV show world of Pleasantville has morphed entirely into something like our reality, generating an entire world in the process]]. -- '''RB'''
----
* ''Fanfic/TheConversionBureau'': Equestria has been transplanted to Earth in the future, not too far off the shore of the USA, by forces unknown. Its magical field is slowly expanding to cover the planet. The field purifies any air, soil, water, plant life, and so on within. Unfortunately, the magic is fatal to humans and the expansion is beyond the power of the Princesses to stop. A special potion is devised to transform humans into ponies, changing their bodies while preserving their minds and souls, to let them survive. This is what happens at the eponymous bureaus. In spite of technological advances, Earth is presented as an EarthThatUsedToBeBetter, with deliberate implication by the author that some event between the present day and the fic's time left a lingering effect that causes much of humanity to essentially act [[WesternAnimation/MyLittlePonyTheMovie1986 smoozed]]. Ponification undoes this, often causing the transformed to feel very chipper. -- '''WDC'''
* ''Fanfic/TheConversionBureau'' comes about as a result of a [[AdvancingWallOfDoom particularly dangerous]] one. -- '''RB'''
----
* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': After Human Twilight's device absorbs the magic of the portal, it starts tearing open portals between the human world and Equestria whenever it is opened, allowing through things like [[FearsomeCrittersOfAmericanFolklore jackalopes]] and [[ManEatingPlant Man-Eating Plants]]. When Twilight transforms into Midnight Sparkle, she [[spoiler:starts ripping holes to Equestria to access the magic there, not caring that she's destroying her own world in the process]]. -- '''WDC'''
* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': The human Twilight's pendant keeps causing a ManaDrain on the Humane Six, and after it drains Sunset's magic while she's touching the portal, it causes portals to Equestria to appear every time it opens. [[spoiler:When Twilight becomes Midnight Sparkle, she starts ripping holes into Equestria purposefully, causing reality to fracture, uncaring that she's destroying her own world in the process even after Sunset points it out]]. -- '''RB'''
----
* ''WesternAnimation/SpiderManIntoTheSpiderVerse'': The plot is driven by the Kingpin's use of an atomic collider to create an interdimensional bridge. At first this simply pulls multiple versions of Spider-man into the movie's main universe, but as Kingpin continues his experiments multiple versions of New York start to be overlaid onto one another in a highly disruptive manner that risks causing the creation of a black hole unless stopped. -- '''WDC'''
* ''WesternAnimation/SpiderManIntoTheSpiderVerse'': A side-effect of the Super Collider opening gateways to other dimensions is objects from other universes replace or merge with those in the host one. Naturally, the device staying on for too long is liable to destroy all of reality. The effect even extends to the film's [[LogoJoke opening logos]]. -- '''RB'''
----
* The plot of ''Literature/TheGodsThemselves'' revolves around a discovery of how to exchange matter between parallel universes and get free energy out of this. The protagonist slowly realizes that, as they exchange matter between worlds, some of the cosmological constants also change very slightly, but enough to have potentially apocalyptic consequences. -- '''WDC'''
* ''Literature/TheGodsThemselves'': The physics of a parallel universe start leaking into ours. At first this seems like a good thing, because it's a way of generating energy on both sides, but some scientists start to suspect there may be unforeseen consequences [[spoiler:unforeseen by us, that is; the inhabitants of the other universe have known it all along, and don't care, because they'll get all the energy they could ever want when our sun goes nova]]. -- '''RB'''
----
* ''Series/BuffyTheVampireSlayer'': In Season Five, the exiled hellgod Glory is trying to re-enter her dimension, but the effort would cause all dimensions to collide (thus [[ApocalypseHow/ClassZ destroying the multiverse]]). Small glimpses of this process can be seen in "[[Recap/BuffyTheVampireSlayerS5E22TheGift The Gift]]", when places on Earth get changed and twisted and creatures from other dimensions including Xenomorph-like demons and a dragon enter our realm. -- '''WDC'''
* ''Series/BuffyTheVampireSlayer'': Happens in the season 5 finale when Glory uses Dawn's blood to lower the barriers between worlds and things start bleeding together until the portals can be closed (by Buffy's death). -- '''RB'''
----
* ''Series/{{Fringe}}'': The space-time continuum is breaking down due to contact between the two universes, which are implied to have slightly different physical laws (the show is inconsistent on that point, though) and to be bleeding into each other. -- '''WDC'''
* ''Series/{{Fringe}}'': There's an alternate dimension, and the walls are breaking down. Things in one universe begin to affect the other, or are even forced to exist in the same place at the same time, to disastrous effect. The other world has it worse and is becoming nearly unlivable, but "ours" is on the same path, and if unchecked, both worlds will be destroyed. -- '''RB'''
----
* ''TabletopGame/MagicTheGathering'': -- '''WDC'''
** In the Invasion storyline, the Phyrexians invaded Dominaria by merging it with an already-conquered plane called Rath. Dominaria was warped to incorporate locations and inhabitants from Rath (including the Phyrexian army), sometimes warping individual creatures or structures into hybrids combining both planes and sometimes simply dumping creatures and entire geographical features from Rath into Dominaria, such as the Skyshroud (an expansive jungle floating like a raft over the sea) getting plopped in the middle of the frozen north.
** The "Shards of Alara" block is one long example of this. Ages ago, an unknown disaster split the plane of Alara into five subplanes. Each "shard" had access to only three of the five colors of magic (each shard having one central color and its two allies), and lacked the two other colors and their associated forms of thought and behavior. Over the ages, the shards were shaped by the local limits on magic, developing into five profoundly different realms. When the shards began to merge back together, not only did the physical terrain of each shard begin to emerge in the others, but each shard had to deal with the return of colors of magic that it had not had to deal with for millennia. The arrival of philosophies and ideas people had previously found literally inconceivable shook each shard's specialized society to the core.
* ''TabletopGame/MagicTheGathering'': -- '''RB'''
** Yawgmoth's plan for his Phyrexian forces to invade Dominaria wasn't a conventional assault, but by overlaying the plane of Rath over his target.
** When the Shards of Alara begin to unite once again, the reality of each shards begin to bleed into each others. The good news is that it means there are now force of life in {{Mordor}}. The bad news is that it means there are now demons and zombies in {{Arcadia}}.
----
* ''TabletopGame/{{TORG}}'': The Earth is invaded by a number of other worlds that each have their own genre-like set of laws that overwrite those of mundane reality when they take over a specific area. In the prehistoric-themed North America, for instance, technology does not work and groups of people devolve into small tribes, whilst in the Pulp-themed Middle-East people drift into stereotypes, their allegiances become easily changeable and good triumphs over evil. The playable characters are those rare individuals who are able to carry their own native laws of physics around with them and exercise them against others. -- '''WDC'''
* ''TabletopGame/{{Torg}}'': Invading "cosms" take over our reality, changing the laws of nature to match their own. However, certain objects known as "hardpoints" have a strong connection to their original reality and maintain it around them, preserving it even when surrounded by a cosm -- e.g. the Eiffel Tower maintains Paris in a bubble of our reality, despite the rest of France now being part of the cosm of the Cyberpapacy. -- '''RB'''
----
* Creator/GamesWorkshop: The Realm of Chaos in ''TabletopGame/{{Warhammer}}'' and ''TabletopGame/Warhammer40000'' is a mirror universe with physical laws vastly different from our own. Wizards/Psykers can tap the Realm of Chaos for power, but they risk physical mutation and insanity. Further, if for any reason the boundaries between universes are weakened, the Realm of Chaos will begin to overwrite physical reality, twisting living beings, inanimate matter and physical laws to increasingly severe degrees until the area is wholly absorbed into the Realm of Chaos itself. -- '''WDC'''
* ''TabletopGame/Warhammer40000'': The Warp is the realm of emotion and demons, where FTL ships travel and from which psychic power is derived, and fortunately has very little crossover with reality. Until you go to the [[NegativeSpaceWedgie Eye of Terror]], of course, an area of the Milky Way where the warp and the Materium intersect, born from the creation of the last Chaos god(dess). The Traitor Legions who gave themselves to Chaos ten millennia ago still live here, periodically launching Black Crusades on the rest of the galaxy. -- '''RB'''
----
* ''VideoGame/TheLongestJourney'': The technological world of Stark and the magical Arcadia are usually insulated from each other. However, when the Balance between them begins to falter in the beginning of the game, weird stuff begins to happen in both worlds, such as a TV show about rainforests transporting the viewers into an actual rainforest, or a handheld calculator trapping a mage tampering with it inside. -- '''WDC'''
* ''VideoGame/TheLongestJourney'': Two realities used to be one but, as people became more adept at both science and magic, it became clear that the world would eventually be destroyed. Thus, it was split in two, with some extra pieces left behind such as Storytime, Mrs. Alvane's house, and the Guardian's realm; Stark, the world of science, and Arcadia, the world of magic. Magic is impossible in Stark because of strict laws of nature. Science is impossible in Arcadia due to the laws of nature being in flux. (Note -- technically misuse of RB, since it just talks about how the realities are separate.) -- '''RB'''
----
* ''WesternAnimation/GravityFalls'': According to the Author of the Journals, the weirdness of the titular town is largely being drawn from a decaying parallel dimension of chaos and nightmares. The ultimate plan of the BigBad [[spoiler:[[EldritchAbomination Bill Cipher]]]] is to merge this [[EldritchLocation Nightmare Realm]] with the physical world in order to turn it into a [[SurrealHorror nightmarish]] WorldOfChaos for him and the rest of the Dream Demons to [[ToCreateAPlaygroundForEvil invade and rule as their personal playground]]. After [[spoiler:Bill]] successfully unleashes Weirdmageddon upon Gravity Falls in the finale, Dipper must find and rally his allies to fight back and liberate the town before Bill can spread his influence throughout the entire universe. -- '''WDC'''
* ''WesternAnimation/GravityFalls'': The town is in an area with an exceptional amount of supernatural occurrences that is revealed to mostly be drawing from a decaying dimension of weirdness and nightmares. -- '''RB'''
[[/folder]]
More so that the number itself, the thing that stands out to me here is that what should be entries of two different tropes just aren't distinguishable from one another -- the only notable trend in content is that the RB entries tend to be shorter and have less context that the WDC ones, but it's otherwise kind of difficult to tell which would be examples of which trope without knowing beforehand what came from what page.
(Note that there are more works that show up on both pages -- I'm restricting myself to examples that discuss the exact same incidents.)
My conclusions are thus:
* WhenDimensionsCollide and RealityBleed are not distinct from one another in scope and use as things currently are.
* Neither trope really sticks to the definition proposed by its description (i.e., "Person/being from one world goes to another and retains its abilities" and "gradual, slow overlaying of one reality with another"). Both are treated as essentially just "One reality is partly or wholly overwritten by another or two realities wholly or partly merge."
* RealityBleed has the most focus issues overall, and the most [=ZCEs=].
----
# A world with overly simple rules and internal logic entered by somebody from an Earth-like world. These works are more prone to humor as the native inhabitants fail to understand or loudly disbelieve things which would be obvious to normal humans.
# A world which has an alien set of physical laws (or somebody from it), that then interacts with an earth-like world. Type II worlds are almost always in the horror genre. Visitors from these worlds are often either {{The Fair Folk}} or {{Eldritch Abomination}}s.
In both cases, the gist with a certain, more or less rigid set of natural laws interacts with or is visited by entities from a world with more complex, looser laws than then function also in the more limited one. The main difference lies in which of the two we, the audience, are more familiar with.
It then presents three conditions necessary for it top apply.
# There must be two independent worlds.
# Something must cross from one world to the other.
# The "laws" of the invading world must work in the invaded world. (For example: if a mage comes from magical world A to mundane world B, it only becomes this trope if the mage can cast magic in the mundane world where magic is normally impossible.)
RealityBleed is defined as "something more gradual".
The description is a little sparse, but it broadly seems to focus on individual entities moving from one universe to the other.
Examples:
[[folder:Characters from one world enter another and retain their native abilities]]
* ''Literature/{{Flatland}}'': A. Square is visited by a sphere from the mysterious dimension of "up" and interacts with the strange world of the third dimension. A sphere manifests as a circle that grows and shrinks, able to bypass all flatlander doors and walls and even touch "inside" a flatlander. The protagonist eventually learns to think multi-dimensionally and is considered insane by most. What makes it this trope is subtle, when taken from one dimension to another (for example when he is in the 3-D world), the normally 2-dimensional A Square is able to perceive higher and lower dimensions. (So in the 3-D world he can see the interior of 2-D people.)
* ''Webcomic/{{Erfworld}}'': The world's rules reflect those of a traditional turn-based tabletop game. For example, terrain is divided into hexes and units can only move a certain number of spaces each turn. The protagonist is from Earth. He experiments with the physical laws of the world in an effort to better understand the rules of the game and attempts to cheat with them (even without cheating, mastering the system makes him a tactical genius). He also has several interesting and unique properties that are a hold-over from reality (such as a lack of visible stats, blood, and the ability to get distracted and forget direct orders).
* ''Webcomic/UnicornJelly'': The dimension of Tryslmaistan periodically intersects with other dimensions, including that of Earth, leaving those residing in those portions of the other worlds stranded in Tryslmaistan. While the physics (and inhabitants) of Tryslmaistan are somewhat hostile to terrestrial life, it is similar enough that human castaways are able to form a civilization on the Myrmil Worldplate [[spoiler: before catastrophe struck and they needed to move on to other Worldplates]]. The DistantFinale shows a group of Humano-Jellese welcoming a new group of castaways from yet another dimension.
* ''Anime/ReCreators'': Characters from various fictional worlds appear in the real world, and any superpowers they have still work. Eventually, characters are fighting each other with powers from different fictional worlds, in a world that shouldn't even have physics that support these powers. Meteora is a little concerned that this might destabilize reality.
* ''Film/{{Jumanji}}'': The flora and fauna of Jumanji that invades the "real world" is able to do things that would be impossible for real life equivalents (monkeys that can ride a motorcycle, plants that grow incredibly quickly, a pelican that can fly the board game without trouble etc...)
* ''Film/LastActionHero'' is a quasi-example. On the one hand, when an action hero crosses over from the world of movies into the real world, he nearly dies from a gunshot he'd normally shrug off as JustAFleshWound; similarly, a villain who makes the same leap is delighted to discover that in the real world [[TheBadGuyWins the bad guy winning]] is actually possible. However, when Death crosses over into reality from the movie world, he's still able to kill people just by touching them. We also see that, when the movie hero shoots the movie villain in his cybernetic eye, it causes a ridiculously huge explosion, even when they're both in the real world. It could be said to be somewhat consistent since only supernatural or futuristic elements kept their original properties.
* ''Literature/CthulhuMythos'': The stories often involve aliens that dwell in more than the traditional three dimensions and who occasionally interact with Earth. The twisting of logic and geometries involved by interacting with these alien space gods usually drives people mad as they are unable to comprehend them.
* ''Series/StarTrekVoyager''. PlayedForLaughs in [[Recap/StarTrekVoyagerS5E12BrideOfChaotica "Bride of Chaotica!"]] where energy beings from another dimension mistake ''Film/TheAdventuresOfCaptainProton'' for reality and go to war with the EmperorScientist supervillain. Unfortunately they can't detect our dimension so don't believe Voyager's crew telling them [[YouJustRuinedTheShot it's just a holodeck program]].
[[/folder]]
[[folder:One world's natural laws or landscape begin to be overwritten by another's]]
* ''Film/Barbie2023'': This is part of the nature of Barbieland as a {{Tulpa}} dimension formed of thoughts and ideas, as real world concepts inherently shape it. However, properties of the real world such as depression, cellulite, and other aspects of genuine humanness that are not usually present in Barbies begin bleeding over into Barbieland [[spoiler: due to America Ferrera's character's imagination affecting Barbies]].
* ''Manga/{{Uzumaki}}'': The inhabitants of a small isolated town begin to notice a repeating spiral pattern that manifests in a number of disturbing ways. People, objects, plants, galaxies, space and time eventually twist into a spiral shape drawing the inhabitants in. The closing scenes show the spiral world below and the narration suggests that this spiral world invades the mundane on a regular basis, leaving only ruins behind when things return to normal.
* ''Fanfic/BloodOnTheHandsOfAHealer'': Thanks to the activation of [[TheMostDangerousVideoGame Kamen Rider Chronicle]], the real world has become a fictional world in of itself due to it becoming a video game, allowing the crossing over of ''other'' fictional worlds and characters into there.
* ''Fanfic/TheConversionBureau'': Equestria has been transplanted to Earth in the future, not too far off the shore of the USA, by forces unknown. Its magical field is slowly expanding to cover the planet. The field purifies any air, soil, water, plant life, and so on within. Unfortunately, the magic is fatal to humans and the expansion is beyond the power of the Princesses to stop. A special potion is devised to transform humans into ponies, changing their bodies while preserving their minds and souls, to let them survive. This is what happens at the eponymous bureaus. In spite of technological advances, Earth is presented as an EarthThatUsedToBeBetter, with deliberate implication by the author that some event between the present day and the fic's time left a lingering effect that causes much of humanity to essentially act [[WesternAnimation/MyLittlePonyTheMovie1986 smoozed]]. Ponification undoes this, often causing the transformed to feel very chipper.
* ''Fanfic/OversaturatedWorld'': This is the ApocalypseHow trying to be solved in the first story, as a full collision would lead to the annihilation of both universes.
* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': After Human Twilight's device absorbs the magic of the portal, it starts tearing open portals between the human world and Equestria whenever it is opened, allowing through things like [[FearsomeCrittersOfAmericanFolklore jackalopes]] and [[ManEatingPlant Man-Eating Plants]]. When Twilight transforms into Midnight Sparkle, she [[spoiler:starts ripping holes to Equestria to access the magic there, not caring that she's destroying her own world in the process]].
* ''Literature/AlternateRoutes'' by Creator/TimPowers: A secret government project is studying an otherworld where the laws of reality are much looser. Over the course of the novel, it increasingly leaks into our world, and it turns out the villain is trying to merge the two worlds entirely, which would result in our physical laws being dissolved in the otherworld's chaos.
* ''Literature/BattleGround'': {{Defied|Trope}} when a DivineConflict takes place in Chicago. The magical power involved is so great that the {{dragon|sAreDivine}} Ferrovax's sole task in the battle is to prevent the the physical world and the [[LandOfFaerie Nevernever]] from collapsing into each other.
* ''Literature/DoctorWhoMissingAdventures'': In ''Millennial Rites'', our universe gets merged with both the one that preceded it ''and'' the one that will follow it, [[EldritchLocation becoming a trifold realm being slowly torn apart by its three mutually-conflicting sets of physical laws]]. London becomes known as the Great Kingdom, ruled by the gods the Great Intelligence ([[Franchise/CthulhuMythos Yog-Sothoth]], of the Pre-Universe), [[EldritchAbomination Saraquazel]] (of the Post-Universe)... and [[AnthropomorphicPersonification Lady TARDIS]] (of... guess where). Notably, none of the three planned this, and only the Great Intelligence is at all pleased with the results.
* ''Literature/TheGodsThemselves'': The plot revolves around a discovery of how to exchange matter between parallel universes and get free energy out of this. The protagonist slowly realizes that, as they exchange matter between worlds, some of the cosmological constants also change very slightly, but enough to have potentially apocalyptic consequences.
* ''Literature/RodAllbrightAlienAdventures'': The second book in the series reveals that BKR and Smorkus Flinders were working on this, intending to create a permanent door between Dimension X (home of Reality Quakes, which periodically cause random and usually temporary shifts in reality, although the effects are sometimes permanent) and Dimension Q (where Earth exists) that would let the Reality Quakes leak over and eventually fuse them into one dimension "where reality can shift like sand" (BKR's motivation is pure nastiness, while Smorkus Flinders, who was once a normal being until a Reality Quake permanently transformed him, is doing so as a means of lashing out at the world in retaliation). However, after Smorkus Flinders is taken into captivity and BKR subsequently ''escapes'' from custody, the latter decides to focus on one of his other, older plans instead.
* ''Franchise/TheWitcher'': In the backstory, the Conjunction of the Spheres was an event where a bunch of dimensions intersected at the same time and dumped several unnatural things into the world, including monsters, magic, [[spoiler:humans in flying metal airships and elves]] into the world, unfortunately for the planet's original inhabitants: [[spoiler:dwarves]].
* ''Series/{{Fringe}}'': The space-time continuum is breaking down due to contact between the two universes, which are implied to have slightly different physical laws (the show is inconsistent on that point, though) and to be bleeding into each other.
* ''Series/TheWitcherBloodOrigin'' concludes with a front-row seat to the Conjunction of the Spheres. Orange fire burns at the edges of interdimensional portals in the sky, revealing multiple planets from a satellite view. These portals merge and give the appearance of WhenThePlanetsAlign, concluding with some kind of ''flash'' that leaves everyone in all worlds unconscious as volumes are swapped with one another. The first survivors are beached on the shores[[note]]implying that the differences in heights at swap meant the highest survival rate was with those who were in seaworthy ships at the time[[/note]] who start asking each other questions only to discover they speak wildly different languages. The details are fudged from the original novels, [[spoiler:as elves had already conquered the world of the dwarves 1,500 years ago, and some of the humans transported were still in the Age of Sail rather than post-cyberpunk]].
* ''TabletopGame/DungeonsAndDragons'': [[EldritchLocation The Far Realm, a Lovecraftian non-place outside of reality]], sometimes encroaches on the Material Plane through "cerebrotic blots" -- places where the laws of physics are subtly distorted. Some blots have [[LayeredWorld a second layer]] accessed through invisible portals, which is BiggerOnTheInside and far more heavily corrupted.
* ''TabletopGame/{{Eberron}}'' has a milder example in the form of manifest zones, where traits from another plane impose themselves on the material world. While some of these are harmful, others are beneficial. [[SkyscraperCity The massive towers of Sharn, the world's largest city]], for instance, can only support their own weight due to being built in a manifest zone to Syrania, the plane of air. Each plane also has an astrological "orbit" which can have effects on the world as a whole, such as resurrection magic acting strangely if the realm of the dead is too near or too far.
* Creator/GamesWorkshop: The Realm of Chaos in ''TabletopGame/{{Warhammer}}'' and ''TabletopGame/Warhammer40000'' is a mirror universe with physical laws vastly different from our own. Wizards/Psykers can tap the Realm of Chaos for power, but they risk physical mutation and insanity. Further, if for any reason the boundaries between universes are weakened, the Realm of Chaos will begin to overwrite physical reality, twisting living beings, inanimate matter and physical laws to increasingly severe degrees until the area is wholly absorbed into the Realm of Chaos itself.
* ''TabletopGame/MagicTheGathering'': In the Invasion storyline, the Phyrexians invaded Dominaria by merging it with an already-conquered plane called Rath. Dominaria was warped to incorporate locations and inhabitants from Rath (including the Phyrexian army), sometimes warping individual creatures or structures into hybrids combining both planes and sometimes simply dumping creatures and entire geographical features from Rath into Dominaria, such as the Skyshroud (an expansive jungle floating like a raft over the sea) getting plopped in the middle of the frozen north.
* ''TabletopGame/{{Pathfinder}}'': The setting's most notable example is the Worldwound, an enormous HellGate to the Abyss that swallowed most of a nation. Besides being filled with demons, the influence of numerous {{demon lords|AndArchdevils}} and the Abyss itself have twisted the surrounding land into something horrible. The remaining plants and animals are either undead or horribly mutated, the land is barren, blasted and wracked by earthquakes and geysers of filthy water, most lakes and rivers have drained into rifts to the Abyss, [[AlienSky the sky is tinted in strange colors]], snow and rain are oily and foul or replaced by insects, blood or worse, and in the most corrupted places even the sun, stars and moon don't look or move like they should.
* ''TabletopGame/WitchHunterTheInvisibleWorld'': Hellpoints are direct doorways to Hell itself. The areas around them are filled with malign influence and evil creatures. Demons may easily enter the world at these places.
* In the latter half of ''VideoGame/DigimonStoryCyberSleuth'' and its {{interquel}} ''VideoGame/DigimonStoryCyberSleuthHackersMemory'', the BigBadEnsemble manages to successfully merge [[{{cyberspace}} the Digital World]] with reality, resulting in confused [[{{mons}} Digimon]] running amok across Japan and [[GameplayAndStoryIntegration hackers being able to execute programs that function in the real world]].
* ''VideoGame/GreyArea2023'': In Chapter 5, [[spoiler:Hailey finds that various dimensions, including the Grey Area, are starting to merge with her reality]].
* ''VideoGame/TheLegendOfZeldaTwilightPrincess'': The Encroachment of the Twilight Realm upon Hyrule, which fills the region with terrifying beasts, many of them former natives and wildlife of the land corrupted into monstrous forms by the Twilight, and turns humans and hylians into spirits (and in Link's case, [[{{Animorphism}} a wolf]]). Unlike most {{Dark World}}s seen in the Zelda series, very little of the Twilight Realm itself is seen except when overlaid onto Hyrule.
* ''VideoGame/TheLongestJourney'': The technological world of Stark and the magical Arcadia are usually insulated from each other. However, when the Balance between them begins to falter in the beginning of the game, weird stuff begins to happen in both worlds, such as a TV show about rainforests transporting the viewers into an actual rainforest, or a handheld calculator trapping a mage tampering with it inside.
* ''VideoGame/PuyoPuyoTetris'': The ExcusePlot for Story Mode is that the worlds of ''Puyo Puyo'' and ''Tetris'' are colliding for some reason, causing Primp Town to be covered in Tetriminoes and Tee's spaceship to be flooded with Puyos.
* ''VideoGame/ShadowWarrior2'' sees the Shadow Realm merging with the human world as a result of Lo Wang's actions in the first game, with the wildlands constantly changing, creating a strange and savage new order where humans and demons live side by side.
* ''VideoGame/WildArms2'': The source of most of the plot's conflict is an "encroaching AlternateUniverse". The only way to fight this is through a LOT of magic and plot twists that temporarily give it physical form.
* ''VideoGame/XenobladeChronicles3'': Aionios is a result of the worlds of [[VideoGame/XenobladeChronicles1 Bionis]] and [[VideoGame/XenobladeChronicles2 Alrest]] [[spoiler:coming into contact and colliding. The people of both worlds build an ark--Origin--that would record the lives and data of the worlds and their people in order to reboot them after the collision annihilates both worlds. However, Z, the embodiment of humanity's anxiety over Origin's success, hijacked Origin, froze both worlds mid-collision, and created Aionios as an "endless now" where no one has to worry about the future. The protagonists' goal is to defeat Z and get Origin running again, at the cost of Aionios and the new life that spawned there. The ending as well as the prequel DLC ''[[VideoGame/XenobladeChronicles3FutureRedeemed Future Redeemed]]'' shows that Origin succeeds, and the worlds eventually merge properly without destroying each other.]]
[[/folder]]
[[folder:Both; travelers herald or cause the general merging]]
* ''Film/DoctorStrange2016'': Near the finale, Strange introduces the normally timeless Dormammu to the concept of time he explicitly brings with him from Earth. The prospect of [[spoiler:being stuck in an endless time-loop is so terrifying that Dormammu agrees to leave the Earth in peace, never return, and take his Zealots with him]].
* ''Film/{{Pleasantville}}'': The protagonists are high school students from our world who enter the world of a black and white 1950s TV serial, in which everything is excessively pleasant and patterned after '50's moral standards (besides colour, there's also no rain, crime, homelessness, fire, sex or toilets). Throughout the film, the protagonists' actions impact the world around them and colours and concepts from the real world (like fire, sex and rain) start to appear as a result.
* ''ComicBook/JudgeDredd'': In "Helter Skelter", interdimensional travel by supervillains from other universes starts to fracture the fabric of reality, causing elements from different dimensions to bleed over into each other. One alternate dimension in particular is referenced that collided completely with another one, [[MergedReality merging the two]] into a never-ending WorldOfChaos.
* ''Policing the Fellowship'', a ''Literature/{{Discworld}}''[=/=]''Literature/TheLordOfTheRings'' CrossOver fic, has Samuel Vimes accompany the Fellowship of the Ring. Over the course of the story, the fellowship characters start acting like Discworldian archetypes of themselves (Aragorn starts acting like an UpperClassTwit -- albeit still a far more competent one than most Discworld nobility, the various nobles the group encounters become much more cynical, etc.). On the flipside, without Vimes, the Discworld becomes more like Middle-Earth, with Captain Carrot (long-lost heir to the throne, who prefers to be a policeman) manifesting the same kind of white flame on his brow that Aragorn does, and being propositioned by three elven princesses. This is somewhat downplayed, however, as the first one was bitten by Angua (Carrot's werewolf girlfriend), the second one's pointy ears washed off in the rain, and the third turned out to be Nobby Nobbs, who was "just getting into the spirit of things".
* ''WesternAnimation/SpiderManIntoTheSpiderVerse'': The plot is driven by the Kingpin's use of an atomic collider to create an interdimensional bridge. At first this simply pulls multiple versions of Spider-man into the movie's main universe, but as Kingpin continues his experiments multiple versions of New York start to be overlaid onto one another in a highly disruptive manner that risks causing the creation of a black hole unless stopped.
* ''Series/BuffyTheVampireSlayer'': In Season Five, the exiled hellgod Glory is trying to re-enter her dimension, but the effort would cause all dimensions to collide (thus [[ApocalypseHow/ClassZ destroying the multiverse]]). Small glimpses of this process can be seen in "[[Recap/BuffyTheVampireSlayerS5E22TheGift The Gift]]", when places on Earth get changed and twisted and creatures from other dimensions including Xenomorph-like demons and a dragon enter our realm.
* ''Series/StarTrekTheNextGeneration'': In [[Recap/StarTrekTheNextGenerationS6E5Schisms "Schisms"]], aliens from another universe with very different physical laws invade the main universe and start running experiments on the ''Enterprise'' crew. They manage to create a temporary environment where the laws of physics allow inhabitants from both universes to co-exist, but normal parameters within that universe do pretty crazy things to people's body chemistry.
* ''TabletopGame/DarkConspiracy'': Parts of the U.S. have been taken over by Dark Minions invading through portals from their home dimensions. These areas are known as "Demonground", and they're filled with the corruption flowing from the portals. Common elements include bizarre vegetation and weird organic tunnels.
* ''TabletopGame/{{TORG}}'': The Earth is invaded by a number of other worlds that each have their own genre-like set of laws that overwrite those of mundane reality when they take over a specific area. In the prehistoric-themed North America, for instance, technology does not work and groups of people devolve into small tribes, whilst in the Pulp-themed Middle-East people drift into stereotypes, their allegiances become easily changeable and good triumphs over evil. The playable characters are those rare individuals who are able to carry their own native laws of physics around with them and exercise them against others.
* ''TabletopGame/WitchCraft'': In "Armagedon", elements of this appear in areas that are captured by the enemy, such areas are changed radically into something alien and inhospitable to normal life as we know it. Victims end up fused together in collective masses of flesh and otherwise twisted beyond all recognition.
* ''WesternAnimation/GravityFalls'': According to the Author of the Journals, the weirdness of the titular town is largely being drawn from a decaying parallel dimension of chaos and nightmares. The ultimate plan of the BigBad [[spoiler:[[EldritchAbomination Bill Cipher]]]] is to merge this [[EldritchLocation Nightmare Realm]] with the physical world in order to turn it into a [[SurrealHorror nightmarish]] WorldOfChaos for him and the rest of the Dream Demons to [[ToCreateAPlaygroundForEvil invade and rule as their personal playground]]. After [[spoiler:Bill]] successfully unleashes Weirdmageddon upon Gravity Falls in the finale, Dipper must find and rally his allies to fight back and liberate the town before Bill can spread his influence throughout the entire universe.
* ''WesternAnimation/TheRealGhostbusters'': In "Knock, Knock", after opening a doorway that was supposed to remain closed until Doomsday, the ghost world starts entering our plane and turning things into monstrous versions of themselves (for example, trains into worm-like monsters). This was intended to be what would happen to the world AfterTheEnd.
[[/folder]]
[[folder:Other]]
* ''Franchise/{{Nasuverse}}'': Background material speaks of [[EldritchAbomination Type Mercury]], the avatar of Planet Mercury, which crash landed in a South American rainforest in 5000 BC after [[Literature/AngelNotes answering Gaia's call]] prematurely[[note]]It wasn't actually supposed to come until the Earth dies of pollution, at which point it is to wake up and exterminate humanity in revenge. The other Types arrive on schedule.[[/note]]. Mercury's crash site has since transformed into a "Crystal Valley" filled with [[AlienGeometries beautiful yet horrifying]] crystal spires. This is a replication of planet Mercury's environment, and Type Mercury's mere ''presence'' has turned that patch of Earth into a patch of Mercury. It is said that its full force is activated by Type Mercury's movement, which means wherever it goes, it will leave a trail of Mercurian crystal. '''Basically Type 3, but just from another planet.'''
* ''VideoGame/CorpseParty'' takes this trope to extreme lengths. The protagonists are trapped in what are mentioned "closed spaces layered over closed spaces". In each chapter, the main characters you play as are all in the same school, but a different rendition of it, with events [[TimeyWimeyBall taking place before or after each other]] that seep into the others' dimensions. Best example is [[spoiler:how Ayumi leaves candles for others that act as a SavePoint after she and Yoshiki look for Seiko when she screams... yet when you play as Naomi and Seiko in Chapter 1, ''the candles were already there'']]. '''Non-linear time; no discussion of cross-universe interactions.'''
[[/folder]]
* Travelers from another world who retain their native abilities: 8/50 = 16%
* One world overwrites or fuses with another: 28/50 = 56%
* The first case causes or heralds the second: 12/50 = 24%
* Other: 2/50 = 4%
As a first analysis, this page leans the most heavily towards the concept of two universes merging wholesale with one another, sometimes with travelers "dragging" their home universe with them but most often not. This contrasts, notably, with the way the description frames it. The name may be an issue -- "When Dimensions Collide" doesn't really bring to mind individual travelers as the first thing. It also does not seem to favor abrupt transformations -- some are, some are undescribed, and many happen gradually and by stages, which contradicts how it distinguishes itself from RealityBleed.
With that in mind, what does RealityBleed look like?
It was created in 2010; [[https://tvtropes.org/pmwiki/discussion.php?id=9h9fox4oa6q42yp79lw7tq0e TLP draft here]]. It opens by defining itself as "where one version of reality is gradually overwritten by another. Unlike when we go DownTheRabbitHole, the alternate reality comes to us and begins to infringe on the real world." The description after that is a little sparse and rather disjointed, but seems to generally focus on this happening in a gradual manner ("This generally begins a little at a time — an anachronistic lamp or the wrong face on a coin — but it gets worse until the process is stopped or it completely supplants the original reality.") and on questioning whether the altered world was real at all ("Due to the questionable reality inherent in the presentation of this trope, often the world being changed wasn't real to begin with. Sometimes it's even the real world which infringes on the false reality.")
Examples:
[[folder:Sudden/violent merger of worlds]]
* ''Manga/{{Berserk}}'': The BigBad and RealityWarper ''extraordinaire'' Femto is able to [[spoiler:redirect the force of Skull Knight's attack using a sword able to cut the fabric of reality itself so as to cause the various supernatural layers of the LayeredWorld to fuse with the mundane layer in which we exist]]. The end result is that AllMythsAreTrue and [[EverythingIsTryingToKillYou most of them want to eat you]].
* ''ComicBook/WorldsCollide1994'': The BigBad Rift merges Dakota with the ravaged Metropolis. Many people die as a result of the bungled merging.
* ''Fanfic/DangerThanFiction'': At the end of the story, the bookwalking spell begins to break down. This results in different versions of the same book merging (like "Jack and the Beanstalk") or completely different stories getting mashed together because of vague similarities in setting (like the ''Rime of the Ancient Mare-iner'' / ''Iron Filly'' / ''Moby-Dick'' / ''Arthur Gordon Pym'' crossover at the end).
* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': The human Twilight's pendant keeps causing a ManaDrain on the Humane Six, and after it drains Sunset's magic while she's touching the portal, it causes portals to Equestria to appear every time it opens. [[spoiler:When Twilight becomes Midnight Sparkle, she starts ripping holes into Equestria purposefully, causing reality to fracture, uncaring that she's destroying her own world in the process even after Sunset points it out]].
* ''WesternAnimation/TheSuperMarioBrosMovie'': [[spoiler: During the climax, Mario destroys the interdimensional Warp Pipe with a Banzai Bill, leading to a chunk of the Mushroom Kingdom, including all of Bowser's Castle, being transported to the streets of Brooklyn.]]
* ''Literature/LordsAndLadies'': When TheFairFolk invade Lancre, their country tries to come through as well, CropCircles being caused by this. At one point the characters witness the two realities fighting for supremacy.
* ''TabletopGame/MagicTheGathering'': Yawgmoth's plan for his Phyrexian forces to invade Dominaria wasn't a conventional assault, but by overlaying the plane of Rath over his target.
* ''TabletopGame/Warhammer40000'': The Warp is the realm of emotion and demons, where FTL ships travel and from which psychic power is derived, and fortunately has very little crossover with reality. Until you go to the [[NegativeSpaceWedgie Eye of Terror]], of course, an area of the Milky Way where the warp and the Materium intersect, born from the creation of the last Chaos god(dess). The Traitor Legions who gave themselves to Chaos ten millennia ago still live here, periodically launching Black Crusades on the rest of the galaxy.
* ''VideoGame/StrongBadsCoolGameForAttractivePeople'': A malfunctioning Trogdor cabinet leads to Free Country USA being combined with the worlds of assorted {{Fictional Video Game}}s.
[[/folder]]
[[folder:Gradual fusion/crossing between worlds]]
* ''ComicBook/{{DCRWBY}}'': The presence of Grimm in Gotham City is causing normal humans (including Batman) to gain Semblances while Team RWBY suddenly experience a FisherKingdom moment with their looks and weapons being changed.
* ''ComicBook/TheKingdomDCComics'': Aspects of the multiverse began to appear inside the Planet Krypton restaurant Batman is in.
* In ''[[Recap/MyLittlePonyFriendshipIsMagicIDWIssue17To20 Reflections]]'' story arc of ''ComicBook/MyLittlePonyFriendshipIsMagicIDW'', due to young Celestia's frequent travels to AlternateUniverse in order to meet [[StarCrossedLovers her lover]], there is a growing {{Synchronization}} between Prime!Equestria and Mirror!Equestria as two parallel realities become gradually more intertwined -- to the point that actions taken in one of them directly affect the other one. It ranges from minor, inconsequential things (like cooks making the same dish on the same day) to crucial events (like previously righteous Mirror!Luna [[FaceHeelTurn falling to the dark side]] when Prime!Luna [[HeelFaceTurn is returned to the side of good]]). In the story arc's climax, both universes begin to effectively merge with each other as ''walls between realities fall down entirely''.
* ''Film/TomorrowCalling'' (an adaptation of ''The Gernsback Continuum'' by Creator/WilliamGibson): A photographer starts hallucinating giant propeller-driven flying wings and CrystalSpiresAndTogas, the "semiotic ghosts" of an [[ZeeRust envisioned reality that never happened]]. To get rid of them he reads tabloid trash and watches porn movies, to drive away this perfect alternate future with our own sordid reality.
* ''Literature/TheEyesOfKidMidas'': The AmuletOfConcentratedAwesome gradually reshapes reality around the protagonist's dreams as he loses control of its power.
* ''Literature/GoodOmens'': A powerful and impressionable young RealityWarper reads too many New Age magazines, and causing [[ConspiracyKitchenSink things like Tibetan tunnels and alien visitations to start becoming true]].
* ''Literature/TheKingOfElflandsDaughter'': First, trolls and other denizens of Elfland begin to intrude in Erl, then a unicorn is spotted. In the end, [[spoiler:the King uses his third spell to expand Elfland's reality and makes Erl part of it]].
* ''Literature/ThePlaceOfTheLion'' by Creator/CharlesWilliams: The higher reality of Platonic archetypes begins bleeding through into our world, replacing all the mundane examples of each Platonic Form. So, for instance, the titular Lion, which represent Power, starts draining all the strength and energy out of everything near it.
* ''Literature/{{Swellhead}}''. The British government sends a team to investigate why an ElaborateUndergroundBase has appeared out of nowhere on the island of Skerra. Turns out an alternate reality--in which one member of the team is a supervillain and the other his James Bond-type antagonist--is bleeding into ours.
* ''Series/BuffyTheVampireSlayer'': Happens in the season 5 finale when Glory uses Dawn's blood to lower the barriers between worlds and things start bleeding together until the portals can be closed (by Buffy's death).
* ''Series/{{Fringe}}'': There's an alternate dimension, and the walls are breaking down. Things in one universe begin to affect the other, or are even forced to exist in the same place at the same time, to disastrous effect. The other world has it worse and is becoming nearly unlivable, but "ours" is on the same path, and if unchecked, both worlds will be destroyed.
* ''Series/KamenRiderGaim'': The otheworldly Helheim Forest is beginning to leak into our world. However, it gets much more complicated than that before it's over.
* ''Series/TheTwilightZone1985'': In "Wordplay", a man is having trouble learning a new product line, and the words start replacing regular words, a little at a time. Pretty soon no one can understand him, and he can't understand them -- even though they're using the same words, they mean totally different things. [[spoiler:Or, he had a stroke.]]
* ''TabletopGame/{{Exalted}}'': Creation itself is a reality as defined by Primordials, which was grown by devouring the Wyld and absorbing everything. This is not a good thing if you're a Raksha. Inversely, when the reality of Creation doesn't keep the Wyld at bay strongly enough, it creates [[RealityIsOutToLunch all sort of interesting effects]] as the chaos and narrative logic of the Wyld starts to overlay, mutate, and eventually dissolve Creation.
* ''TabletopGame/WerewolfTheForsaken'' has places called verges where the spirit world bleeds into the real world.
[[/folder]]
[[folder:Gradual fusion/crossing between time periods]]
* Tomorrow Man, Zarrko the time traveler, is introduced in a Hulk story arc as existing in perception of fourth dimensional space. His presence gives off an energy that causes different time periods to bleed into the present moment, illustrated as bystanders switching to different period clothes from across the world between panels without noticing.
* ''Fanfic/OnTheEdgeOfTheDevilsBackbone'': Mustafar has a mental version of this, thanks to being an Eldritch Location. While being interrogated, Kanan sees glimpses of the past, the canon timeline, and possibly the future.
* "I'm Scared", an early story by Jack Finney, has a temporal variant in which elements of the past begin to appear in the present. (e.g., the sudden appearance on the outside of a house of a wide strip of the original paint from decades before.) These elements begin growing in size and effect as the story progresses.
* ''Literature/JefftyIsFive'': Jeffty is a boy who has remained five years old for over twenty years. He can listen to old radio shows on his radio... yet they are new episodes of the shows, episodes that have never existed in the "real world". He can buy comics such as ''ComicBook/TheShadow'' and ''Literature/DocSavage'' that are, again, all-new although they are no longer being produced, not to mention long-discontinued pulp magazines with new stories by Stanley G. Weinbaum, Creator/EdgarRiceBurroughs and Creator/RobertEHoward despite the authors being long dead. As reality begins to bleed over into Jeffty's world, it isn't pretty.
* ''Series/DoctorWho'' features several stories where temporal events cause bleedover from other time periods, including [[Recap/DoctorWhoS9E1DayOfTheDaleks "Day of the Daleks"]], [[Recap/DoctorWhoS11E2InvasionOfTheDinosaurs "Invasion of the Dinosaurs"]] and [[Recap/DoctorWhoS21E2TheAwakening "The Awakening"]]. Perhaps the ultimate example is [[Recap/DoctorWhoS32E13TheWeddingOfRiverSong "The Wedding of River Song"]], where all of Earth's history starts happening at the same time, and only the Doctor realises anything is wrong.
* ''Videogame/RadiantHistoria'': The game requires the player to alternate between two timelines where actions of the player in one have changing effects in the other.
* ''VideoGame/BioShockInfinite'' takes place in the city of Columbia, where due to the background presence Elizabeth -- a [[DamselInDistress caged]], but increasingly powerful RealityWarper -- is frequently infested with "Tears" into {{Alternate Universe}}s. ''Infinite'' effectively uses these quantum anomalies as its AppliedPhlebotinum, factoring in both the gameplay (Elizabeth can summon goodies from other universes to assist in combat) and in the plot (where [[GoingCosmic the nature of the multiverse and crossover therein becomes increasingly more important for its resolution]]).
* ''VideoGame/{{Control}}'' establishes the physical realm, as well as the Astral Plane, an anomalous psychic dimension of [[BlankWhiteVoid mostly white void]] primarily occupied by the Federal Bureau of Control's ultimate overseer and [[EldritchAbomination ontologically ambiguous entity]], [[MysteriousBacker the Board]]. The plot of the ''Foundation'' DLC hinges around parts of the Astral Plane merging with the caves below the FBC's headquarters -- creating odd sights like a long-abandoned restroom [[NonSequiturEnvironment leading into fragmented white space]] -- due to damage towards [[CosmicKeystone a universe-binding structure called the Nail]], with the mission being to repair it to stop the bleeding.
* ''VideoGame/GuildWars Nightfall'': The world that the players inhabit becomes more like the Realm of torment as the game goes on. Completing the bleed is the goal of the bad guys, while the players are attempting to stop and reverse the process. A couple of zones actually change for particular missions in the story, and later zones in the story have a more ''Nightfallen'' feel to them as the process occurs.
* ''VideoGame/NanashiNoGame'': The haunted video games begin to make themselves more and more apparent in the real world.
* ''VideoGame/Persona4'': The mysterious fog from the [[MentalWorld Midnight Channel]] begins to form a perpetual cloud over Inaba in the last act of the game [[spoiler:as a result of [[BigBad Adachi]]'s plan to cause TheEndOfTheWorldAsWeKnowIt and [[MergedReality merge the two realities]], [[StrawNihilist allowing the Shadows to run wild in the real world and kill people indiscriminately]].]]
* ''WebAnimation/HomestarRunner'': Many things that are considered part of the overall Homestar Runner universe such as Trogdor the Burninator, Sweet Cuppin' Cakes and Limozeen started as Strong Bad's random ruminations before bleeding into the world proper. This has been lampshaded at least once.
[[/folder]]
[[folder:Other]]
* ''Series/StarTrekTheNextGeneration'': An odd inversion occurs in "Remember Me"; [[spoiler:the false reality Dr. Crusher experiences begins to disappear, with people and objects disappearing until the whole universe was the size of a room, populated by one person]].
[[/folder]]
[[folder:ZCE]]
* ''Anime/{{Noein}}'': This is an effect of Haruka's power.
* ''Anime/ParanoiaAgent'', made by the [[Creator/SatoshiKon same creator]] as ''Paprika''... [[MindScrew at least, we]] ''[[MindScrew think]]'' [[MindScrew that's what's going on]].
* ''Manga/ThoseWhoHuntElves'': This happens towards the end.
* ''Comicbook/AnimalMan'': In Morrison's run, a second ''Crisis'' starts, resulting in multiple forgotten "ideas" bleeding into one another. '''Really unclear what this is talking about.'''
* ''ComicBook/EmperorJoker'': After the Joker recreates reality in his own image, tiny reality bleeds from what used to be the real world provide hope for the heroes. '''Does not qualify what a reality bleed is.'''
* In the ''ComicBook/XMen''[=/=]''ComicBook/FantasticFour'' crossover "Days of Future Present," this is caused by the [[spoiler:ghost of]] Franklin Richards from the ''ComicBook/DaysOfFuturePast'' storyline.
* ''Film/EXistenZ'' calls this a "reality bleed-through effect".
* ''Film/{{Franklyn}}'' includes one of the rare instances when a reality bleed manages to occur quite quickly. ('''Note: you may notice from the above folders that this is not especially rare.''')
* ''Film/OverdrawnAtTheMemoryBank''. In this case, it is the main character's own mind that overwrites a fictional reality.
* ''Literature/GhostFinders'': In ''Ghost of a Smile'', the transfigured New People distort reality by their very presence.
* Creator/PhilipKDick loved this trope and used it in many of his works:
* ''Literature/{{Ubik}}'': Glen Runciter's image begins to manifest itself everywhere. And then, although the story is set in 1992, the year 1939 tries to get in on the action.
* ''Literature/ToVisitTheQueen'': The protagonists have to stop one of these.
[[/folder]]
* Sudden/violent merger of worlds: 9/50 = 18%
* Gradual fusion/crossing between worlds: 15/50 = 30%
* Gradual fusion/crossing between time periods: 12/50 = 24%
* Other: 1/50 = 2%
* ZCE: 13/50 = 26%
An addition variable: a number of examples are present in both pages that list the same works and incidents as examples of both tropes. The full list runs thusly:
[[folder:Duplicates]]
* ''Film/{{Pleasantville}}'': The protagonists are high school students from our world who enter the world of a black and white 1950s TV serial, in which everything is excessively pleasant and patterned after '50's moral standards (besides colour, there's also no rain, crime, homelessness, fire, sex or toilets). Throughout the film, the protagonists' actions impact the world around them and colours and concepts from the real world (like fire, sex and rain) start to appear as a result. -- '''WDC'''
* ''Film/{{Pleasantville}}'': After the two protagonists enter the black-and-white world, larger and larger splotches of color become apparent, until the entire world is in color. By the end, [[spoiler:the simplistic TV show world of Pleasantville has morphed entirely into something like our reality, generating an entire world in the process]]. -- '''RB'''
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* ''Fanfic/TheConversionBureau'': Equestria has been transplanted to Earth in the future, not too far off the shore of the USA, by forces unknown. Its magical field is slowly expanding to cover the planet. The field purifies any air, soil, water, plant life, and so on within. Unfortunately, the magic is fatal to humans and the expansion is beyond the power of the Princesses to stop. A special potion is devised to transform humans into ponies, changing their bodies while preserving their minds and souls, to let them survive. This is what happens at the eponymous bureaus. In spite of technological advances, Earth is presented as an EarthThatUsedToBeBetter, with deliberate implication by the author that some event between the present day and the fic's time left a lingering effect that causes much of humanity to essentially act [[WesternAnimation/MyLittlePonyTheMovie1986 smoozed]]. Ponification undoes this, often causing the transformed to feel very chipper. -- '''WDC'''
* ''Fanfic/TheConversionBureau'' comes about as a result of a [[AdvancingWallOfDoom particularly dangerous]] one. -- '''RB'''
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* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': After Human Twilight's device absorbs the magic of the portal, it starts tearing open portals between the human world and Equestria whenever it is opened, allowing through things like [[FearsomeCrittersOfAmericanFolklore jackalopes]] and [[ManEatingPlant Man-Eating Plants]]. When Twilight transforms into Midnight Sparkle, she [[spoiler:starts ripping holes to Equestria to access the magic there, not caring that she's destroying her own world in the process]]. -- '''WDC'''
* ''WesternAnimation/MyLittlePonyEquestriaGirlsFriendshipGames'': The human Twilight's pendant keeps causing a ManaDrain on the Humane Six, and after it drains Sunset's magic while she's touching the portal, it causes portals to Equestria to appear every time it opens. [[spoiler:When Twilight becomes Midnight Sparkle, she starts ripping holes into Equestria purposefully, causing reality to fracture, uncaring that she's destroying her own world in the process even after Sunset points it out]]. -- '''RB'''
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* ''WesternAnimation/SpiderManIntoTheSpiderVerse'': The plot is driven by the Kingpin's use of an atomic collider to create an interdimensional bridge. At first this simply pulls multiple versions of Spider-man into the movie's main universe, but as Kingpin continues his experiments multiple versions of New York start to be overlaid onto one another in a highly disruptive manner that risks causing the creation of a black hole unless stopped. -- '''WDC'''
* ''WesternAnimation/SpiderManIntoTheSpiderVerse'': A side-effect of the Super Collider opening gateways to other dimensions is objects from other universes replace or merge with those in the host one. Naturally, the device staying on for too long is liable to destroy all of reality. The effect even extends to the film's [[LogoJoke opening logos]]. -- '''RB'''
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* The plot of ''Literature/TheGodsThemselves'' revolves around a discovery of how to exchange matter between parallel universes and get free energy out of this. The protagonist slowly realizes that, as they exchange matter between worlds, some of the cosmological constants also change very slightly, but enough to have potentially apocalyptic consequences. -- '''WDC'''
* ''Literature/TheGodsThemselves'': The physics of a parallel universe start leaking into ours. At first this seems like a good thing, because it's a way of generating energy on both sides, but some scientists start to suspect there may be unforeseen consequences [[spoiler:unforeseen by us, that is; the inhabitants of the other universe have known it all along, and don't care, because they'll get all the energy they could ever want when our sun goes nova]]. -- '''RB'''
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* ''Series/BuffyTheVampireSlayer'': In Season Five, the exiled hellgod Glory is trying to re-enter her dimension, but the effort would cause all dimensions to collide (thus [[ApocalypseHow/ClassZ destroying the multiverse]]). Small glimpses of this process can be seen in "[[Recap/BuffyTheVampireSlayerS5E22TheGift The Gift]]", when places on Earth get changed and twisted and creatures from other dimensions including Xenomorph-like demons and a dragon enter our realm. -- '''WDC'''
* ''Series/BuffyTheVampireSlayer'': Happens in the season 5 finale when Glory uses Dawn's blood to lower the barriers between worlds and things start bleeding together until the portals can be closed (by Buffy's death). -- '''RB'''
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* ''Series/{{Fringe}}'': The space-time continuum is breaking down due to contact between the two universes, which are implied to have slightly different physical laws (the show is inconsistent on that point, though) and to be bleeding into each other. -- '''WDC'''
* ''Series/{{Fringe}}'': There's an alternate dimension, and the walls are breaking down. Things in one universe begin to affect the other, or are even forced to exist in the same place at the same time, to disastrous effect. The other world has it worse and is becoming nearly unlivable, but "ours" is on the same path, and if unchecked, both worlds will be destroyed. -- '''RB'''
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* ''TabletopGame/MagicTheGathering'': -- '''WDC'''
** In the Invasion storyline, the Phyrexians invaded Dominaria by merging it with an already-conquered plane called Rath. Dominaria was warped to incorporate locations and inhabitants from Rath (including the Phyrexian army), sometimes warping individual creatures or structures into hybrids combining both planes and sometimes simply dumping creatures and entire geographical features from Rath into Dominaria, such as the Skyshroud (an expansive jungle floating like a raft over the sea) getting plopped in the middle of the frozen north.
** The "Shards of Alara" block is one long example of this. Ages ago, an unknown disaster split the plane of Alara into five subplanes. Each "shard" had access to only three of the five colors of magic (each shard having one central color and its two allies), and lacked the two other colors and their associated forms of thought and behavior. Over the ages, the shards were shaped by the local limits on magic, developing into five profoundly different realms. When the shards began to merge back together, not only did the physical terrain of each shard begin to emerge in the others, but each shard had to deal with the return of colors of magic that it had not had to deal with for millennia. The arrival of philosophies and ideas people had previously found literally inconceivable shook each shard's specialized society to the core.
* ''TabletopGame/MagicTheGathering'': -- '''RB'''
** Yawgmoth's plan for his Phyrexian forces to invade Dominaria wasn't a conventional assault, but by overlaying the plane of Rath over his target.
** When the Shards of Alara begin to unite once again, the reality of each shards begin to bleed into each others. The good news is that it means there are now force of life in {{Mordor}}. The bad news is that it means there are now demons and zombies in {{Arcadia}}.
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* ''TabletopGame/{{TORG}}'': The Earth is invaded by a number of other worlds that each have their own genre-like set of laws that overwrite those of mundane reality when they take over a specific area. In the prehistoric-themed North America, for instance, technology does not work and groups of people devolve into small tribes, whilst in the Pulp-themed Middle-East people drift into stereotypes, their allegiances become easily changeable and good triumphs over evil. The playable characters are those rare individuals who are able to carry their own native laws of physics around with them and exercise them against others. -- '''WDC'''
* ''TabletopGame/{{Torg}}'': Invading "cosms" take over our reality, changing the laws of nature to match their own. However, certain objects known as "hardpoints" have a strong connection to their original reality and maintain it around them, preserving it even when surrounded by a cosm -- e.g. the Eiffel Tower maintains Paris in a bubble of our reality, despite the rest of France now being part of the cosm of the Cyberpapacy. -- '''RB'''
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* Creator/GamesWorkshop: The Realm of Chaos in ''TabletopGame/{{Warhammer}}'' and ''TabletopGame/Warhammer40000'' is a mirror universe with physical laws vastly different from our own. Wizards/Psykers can tap the Realm of Chaos for power, but they risk physical mutation and insanity. Further, if for any reason the boundaries between universes are weakened, the Realm of Chaos will begin to overwrite physical reality, twisting living beings, inanimate matter and physical laws to increasingly severe degrees until the area is wholly absorbed into the Realm of Chaos itself. -- '''WDC'''
* ''TabletopGame/Warhammer40000'': The Warp is the realm of emotion and demons, where FTL ships travel and from which psychic power is derived, and fortunately has very little crossover with reality. Until you go to the [[NegativeSpaceWedgie Eye of Terror]], of course, an area of the Milky Way where the warp and the Materium intersect, born from the creation of the last Chaos god(dess). The Traitor Legions who gave themselves to Chaos ten millennia ago still live here, periodically launching Black Crusades on the rest of the galaxy. -- '''RB'''
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* ''VideoGame/TheLongestJourney'': The technological world of Stark and the magical Arcadia are usually insulated from each other. However, when the Balance between them begins to falter in the beginning of the game, weird stuff begins to happen in both worlds, such as a TV show about rainforests transporting the viewers into an actual rainforest, or a handheld calculator trapping a mage tampering with it inside. -- '''WDC'''
* ''VideoGame/TheLongestJourney'': Two realities used to be one but, as people became more adept at both science and magic, it became clear that the world would eventually be destroyed. Thus, it was split in two, with some extra pieces left behind such as Storytime, Mrs. Alvane's house, and the Guardian's realm; Stark, the world of science, and Arcadia, the world of magic. Magic is impossible in Stark because of strict laws of nature. Science is impossible in Arcadia due to the laws of nature being in flux. (Note -- technically misuse of RB, since it just talks about how the realities are separate.) -- '''RB'''
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* ''WesternAnimation/GravityFalls'': According to the Author of the Journals, the weirdness of the titular town is largely being drawn from a decaying parallel dimension of chaos and nightmares. The ultimate plan of the BigBad [[spoiler:[[EldritchAbomination Bill Cipher]]]] is to merge this [[EldritchLocation Nightmare Realm]] with the physical world in order to turn it into a [[SurrealHorror nightmarish]] WorldOfChaos for him and the rest of the Dream Demons to [[ToCreateAPlaygroundForEvil invade and rule as their personal playground]]. After [[spoiler:Bill]] successfully unleashes Weirdmageddon upon Gravity Falls in the finale, Dipper must find and rally his allies to fight back and liberate the town before Bill can spread his influence throughout the entire universe. -- '''WDC'''
* ''WesternAnimation/GravityFalls'': The town is in an area with an exceptional amount of supernatural occurrences that is revealed to mostly be drawing from a decaying dimension of weirdness and nightmares. -- '''RB'''
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More so that the number itself, the thing that stands out to me here is that what should be entries of two different tropes just aren't distinguishable from one another -- the only notable trend in content is that the RB entries tend to be shorter and have less context that the WDC ones, but it's otherwise kind of difficult to tell which would be examples of which trope without knowing beforehand what came from what page.
(Note that there are more works that show up on both pages -- I'm restricting myself to examples that discuss the exact same incidents.)
My conclusions are thus:
* WhenDimensionsCollide and RealityBleed are not distinct from one another in scope and use as things currently are.
* Neither trope really sticks to the definition proposed by its description (i.e., "Person/being from one world goes to another and retains its abilities" and "gradual, slow overlaying of one reality with another"). Both are treated as essentially just "One reality is partly or wholly overwritten by another or two realities wholly or partly merge."
* RealityBleed has the most focus issues overall, and the most [=ZCEs=].
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