History Main / SharedUniverse

*** The 45th anniversary series ''Series/KikaiSentaiZenkaiger'' depicts all the previous series as each being in a separate universe, even though this contradicts what was established in the ''Gokaiger''. This likely means that each Sentai show has its own universe, but ''Gokaiger'' and other crossovers take place in a universe with its own versions of most of the other teams. Or that ''Gokaiger'' is the "prime" universe with all the Sentai teams, and the worlds in ''Zenkaiger'' are alternate universes each with only one ''Sentai'' team. ''Series/AvataroSentaiDonbrothers'' also is its own universe even though it is sequel to ''Zenkaiger'', although it has been implied that the Kaito who appears in ''Donbrothers'' is the same one from ''Zenkaiger''. So now it seems that Super Sentai is retiring the shared universe and switching to a shared multiverse. It also no longer seems to share a universe with ''Kamen Rider'', as ''Film/KamenRiderSaberPlusKikaiSentaiZenkaigerSuperHeroSenki'' shows that ''Super Sentai'' and all the previous ''Kamen Rider'' seasons are works of fiction in the world of ''Series/KamenRiderSaber'' but interestingly, ''Series/KamenRiderRevice'' is a show in the world of ''Donbrothers''.

** This is particular apparent between the ''Ghost Recon'' and ''H.A.W.X.'' games - multiple missions in the latter have the player supporting Ghost teams, and (plot inconsistencies aside due to them coming out two years apart) ''Future Soldier'' depicts the same conflict as in ''H.A.W.X. 2''. There's also ''Ghost Recon 2''[='=]s plot kicking off from the sinking of the ''USS Clarence E. Walsh'', an event depicted about halfway through ''VideoGame/SplinterCellChaosTheory'', and both ''Future Soldier'' and ''H.A.W.X. 2'' mention Voron, the Russian equivalent of Third Echelon from ''[[VideoGame/SplinterCellConviction Conviction]]''.

* Various {{Creepypasta}}s are at least implied to take place in the same Universe, given how many of them are presented as being real. The Wiki/SCPFoundation and at least some of Franchise/TheSlenderManMythos may be part of it too.
* The Wiki/SCPFoundation takes place in the same universe as Wiki/TheWanderersLibrary. Also, due to the fact that the Foundation "[[UnreliableCanon has no canon]]" it can share the same universe with anything, since it is up to the reader to decide what is or isn't canon. Several crossover stories have been written by various authors, crossing it with a wide variety of works.

** Other family connections: Lee Donowitz from ''Film/TrueRomance'' is the son of Sgt. Donny "The Bear Jew" Donowitz from ''Film/IngloriousBasterds''. Furthermore, Alabama from ''True Romance'' is the same Alabama that Mr. White mentions in ''Reservoir Dogs''. According to Tarantino, [[Film/DjangoUnchained Django and Brunhilde]] (whose maiden name is "Von Schaft") are the great-grandparents of [[Film/{{Shaft}} John Shaft]][[note]] Therefore the ''Shaft'' revival movie adds yet ''another'' appearance by Creator/SamuelLJackson to the 'verse[[/note]], and Django had a comics crossover with Franchise/{{Zorro}}. And ''Film/TheHatefulEight'''s Oswaldo Mobray, aka "English Pete" Hicox, is related to Creator/MichaelFassbender's Sgt Hicox from ''Film/InglouriousBasterds''.

* ''WesternAnimation/ThePowerpuffGirls1998'' shares a universe with {{Music/Gorillaz}} of all things, due to Ace of the Gangreen Gang temporarily replacing the band's bassist Murdoc.

*** The 45th anniversary series ''Series/KikaiSentaiZenkaiger'' depicts all the previous series as each being in a separate universe, even though this contradicts what was established in the ''Gokaiger''. This likely means that each Sentai show has its own universe, but ''Gokaiger'' and other crossovers take place in a universe with its own versions of most of the other teams. Or that ''Gokaiger'' is the "prime" universe with all the Sentai teams, and the worlds in ''Zenkaiger'' are alternate universes each with only one ''Sentai'' team. ''Series/AvataroSentaiDonbrothers'' also is its own universe even though it is sequel to ''Zenkaiger''. So now it seems that Super Sentai is retiring the shared universe and switching to a shared multiverse. It also no longer seems to share a universe with ''Kamen Rider'', as ''Film/KamenRiderSaberPlusKikaiSentaiZenkaigerSuperHeroSenki'' shows that ''Super Sentai'' and all the previous ''Kamen Rider'' seasons are works of fiction in the world of ''Series/KamenRiderSaber'' but interestingly, ''Series/KamenRiderRevice'' is a show in the world of ''Donbrothers''.

** ''Franchise/SuperSentai'' also is a shared universe with frequent crossovers. It also shares a universe with several other {{Tokusatsu}} shows including ''Franchise/KamenRider'' (though this can create a snarl since not all ''Kamen Rider'' shows share a universe as previously stated) and ''Series/MetalHeroes''. An exception is ''Series/UchuSentaiKyuranger'', which takes place in its own universe, since in that show Earth has already been taken over by the villains with no other heroes to stop them, although it is considered part of the same continuity, and so the Kyurangers have been part of a few crossovers where they entered the main universe. Another exception is the noncanonical parody ''Series/HikoninSentaiAkibaranger'' which takes place in a universe where the other Super Sentai series are [[ShowWithinAShow shows within the show.]]

*** The 45th anniversary series ''Series/KikaiSentaiZenkaiger'' depicts all the previous series as each being in a separate universe, even though this contradicts what was established in the ''Gokaiger''. This likely means that each Sentai show has its own universe, but ''Gokaiger'' and other crossovers take place in a universe with its own versions of most of the other teams. Or that ''Gokaiger'' is the "prime" universe with all the Sentai teams, and the worlds in ''Zenkaiger'' are alternate universes each with only one ''Sentai'' team. ''Series/AvataroSentaiDonbrothers'' also is its own universe even though it is sequel to ''Zenkaiger''. So now it seems that Super Sentai is retiring the shared universe and switching to a shared multiverse.

** ''Franchise/SuperSentai'' also is a shared universe with frequent crossovers. It also shares a universe with several other {{Tokusatsu}} shows including ''Franchise/KamenRider'' (though this can create a snarl since not all ''Kamen Rider'' shows share a universe as previously stated) and ''Series/MetalHeroes''. An exception is ''Series/UchuSentaiKyuranger'', which takes place in its own universe, since in that show Earth has already been taken over by the villains with no other heroes to stop them, although it is considered part of the same continuity, and so the Kyurangers have been part of a few crossovers where they entered the main universe. Another exception is the noncanonical parody ''Series/HikoninSentaiAkibaranger'' which takes place in a universe where the other Super Sentai series are [[ShowWithinAShow shows within the show.]] Strangely however, the 45th anniversary series ''Series/KikaiSentaiZenkaiger'' depicts all the previous series as each being in a separate universe, even though this contradicts what was established in the ''Gokaiger''. This likely means that each Sentai show has its own universe, but Gokaiger and other crossovers take place in a universe with its own versions of most of the other teams. ''Series/AvataroSentaiDonbrothers'' also is its own universe even though it is sequel to ''Zenkaiger''. So now it seems that Super Sentai is retiring the shared universe and switching to a shared multiverse.

* Both ''Manga/CatsEye'' and ''Manga/CityHunter'' (both created by Tsukasa Hojo) have referenced each other at times, implying they're set in the same universe. The Kisugi sisters eventually showed up in ''Anime/CityHunterShinjukuPrivateEyes''.

* The connections between ''VideoGame/SaintsRow'' and Creator/{{Volition}}'s other FlagshipFranchise, ''VideoGame/RedFaction'', have [[ZigZaggedTrope waned and strengthened]] throughout the years, primarily revolving around the villainous MegaCorp named Ultor, which is the driving force behind the colonization of Mars in ''RF''. As early as the original ''VideoGame/SaintsRow1'', the city of Stilwater hosted the Ultor Dome, featuring the Ultor corporate logos, and Ultor became a major power in the city by ''VideoGame/SaintsRow2''. Although it had merged with the 3rd Street Saints by ''VideoGame/SaintsRowTheThird'', weakening the connection (because there is no mention of the Saints in ''RF''), one of that game's two endings reinforced it again by having the main characters star in a movie about Mars, meaning that ''SR''!Ultor ''does'' have some interest in the Red Planet. And then it went right out of the window when the entire planet of Earth was blown up by the invading aliens in ''VideoGame/SaintsRowIV'' (it is very much intact in ''RF''). However, the shared universe, or rather, shared ''multi''verse was reestablished by ''VideoGame/SaintsRowGatOutOfHell'' and ''VideoGame/AgentsOfMayhem'', as the former had an ending that erased the Saints' entire timeline via CosmicRetcon, and the latter [[CuttingOffTheBranches established it as canon]]. ''[=AoM=]'' contains no references to Ultor, but it presumably never gets bogged down in Stilwater in this timeline and eventually reaches Mars.

* Franchise/UniversalHorror is one of the earliest cinematic examples. From the 1930s to the 1950s, [[Creator/{{Universal}} Universal Pictures]] (later Universal Studios) released various horror films featuring [[Film/Dracula1931 Dracula]], [[Film/Frankenstein1931 Frankenstein's Monster]], [[Film/TheWolfMan1941 The Wolf Man]] and others, and eventually had them [[{{Crossover}} cross over]] with each other, creating or at least codifying the MonsterMash. Then the franchise combined with the Creator/AbbottAndCostello comedy team with surprising ease and created a whole series of its own as the two encountered nearly all the Universal monsters themselves.

* Because Creator/MarvelStudios holds the rights to all Creator/MarvelComics characters not given to other studios,[[note]]''Franchise/XMen'', ''ComicBook/FantasticFour'', ''ComicBook/MenInBlack'', ''ComicBook/{{Blade}}'', and ''ComicBook/KickAss''[[/note]] they have managed to bridge together a single continuity family named the Franchise/MarvelCinematicUniverse with links between the characters' stories, and the franchise has continually grown as more characters are introduced. The success of the MCU has led other film companies to [[FollowTheLeader follow Marvel Studios' lead]], creating their own cinematic universes for comic-book properties they own the film rights to. The MCU itself can be broken down into various "Phases":

* ''WebOriginal/ThePixarTheory'', a fan theory (or group of theories) that postulate that all Pixar movies are part of a shared universe, using the different EasterEggs as proof of that. Of course, the details of such connection will depend on who you ask,as the theory already has several notable exponents like the credited creator of the theory himself, Jon Negroni, the Super Carlin Brothers, and countless fan theories on Reddit and other forums from many others. In case you're wondering, [[WordOfGod Pixar creators]] have already debunked it to varying degrees. Pete Doctor (''WesternAnimation/MonstersInc'', ''WesternAnimation/{{Up}}'', ''WesternAnimation/InsideOut'') dismissed it, but admitted that all ''his'' films could potentially work within a single universe. Meanwhile, Brad Bird (''WesternAnimation/TheIncredibles'', ''WesternAnimation/{{Ratatouille}}'') is explicit about all his films (not counting sequels) taking place in different universes, much less all of them being within a larger Pixar-verse. Additionally, WordOfGod regarding the Toy Box world in ''VideoGame/KingdomHeartsIII'' indicates that the universe of the ''Toy Story'' films is canonically one of the worlds in the multiverse of ''Franchise/KingdomHearts'' (as opposed to a BroadStrokes alternate retelling like most Disney worlds in the series). One could reasonably interpolate that if the same is true regarding the Monstropolis world, then at least those Pixar movies operate on the ''Kingdom Hearts'' Multiverse Theory.

** After the DCAMU ended, the 2020 film ''WesternAnimation/SupermanManOfTomorrow'' began the ''WesternAnimation/{{Tomorrowverse}}'' which was more LighterAndSofter when compared to the DCAMU,

** Chima is one of the 7 realms of Ninjago.

* ''Film/{{Supergirl}}'' takes place in the same continuity as the Christoper Reeve films. (Many mentions are made of Superman and Jimmy Olsen appears in the film.)

* Because Creator/MarvelStudios holds the rights to all Creator/MarvelComics characters not given to other studios[[note]]''Franchise/XMen'', ''ComicBook/FantasticFour'', ''ComicBook/MenInBlack'', ''ComicBook/{{Blade}}'', and ''ComicBook/KickAss''[[/note]], they have managed to bridge together a single continuity family named the Franchise/MarvelCinematicUniverse with links between the characters' stories, and the franchise has continually grown as more characters are introduced. The success of the MCU has led other film companies to [[FollowTheLeader follow Marvel Studios' lead]], creating their own cinematic universes for comic-book properties they own the film rights to. The MCU itself can be broken down into various "Phases":

** Phase 4: The current phase; its running themes haven't been fully established yet though most of the entries so far seem to be focusing on either {{Alternate Timeline}}s or PassingTheTorch to {{Legacy Character}}s. While previous TV shows were always [[RestrictedExpandedUniverse held at arms' length from the movies]], this phase starts incorporating TV miniseries that are fully integrated with the movies' plotlines. In its first year alone, the phase includes ''Series/WandaVision'', ''Series/TheFalconAndTheWinterSoldier'', ''Series/Loki2021'', ''Film/BlackWidow2021'', ''WesternAnimation/WhatIf2021'', ''Film/ShangChiAndTheLegendOfTheTenRings'', ''Film/{{Eternals}}'', ''Series/Hawkeye2021'', and ''Film/SpiderManNoWayHome''.

* Although it's a crossover game, ''VideoGame/NamcoXCapcom'' is a special case. The game itself has a world with the settings and characters of several contemporary [[Creator/BandaiNamcoEntertainment Namco]] (''Franchise/{{Tekken}}'', ''VideoGame/WonderMomo'', ''Franchise/DotHack'', etc.), Creator/{{Capcom}} (''Franchise/StreetFighter'', ''Franchise/ResidentEvil'', ''VideoGame/DeadRising'', etc.), and as ''VideoGame/ProjectXZone'' shows up, even Creator/{{Sega}} (''VideoGame/FightingVipers'', ''VideoGame/DynamiteCop'', etc.) properties co-existing, and implies that ''VideoGame/{{Xenosaga}}'' is its future. Crossover shenanigans involve other universes, then the main characters from the game (and ''Xenosaga'') appeared in the ''VideoGame/EndlessFrontier'' games, which is a side realm of the ''VideoGame/SuperRobotWarsOriginalGeneration'' universe. This came back when characters from the ''Frontier'' and ''OG'' universes appeared in ''Project X Zone'', then went back to ''Super Robot Wars OG: The Moon Dwellers'' discussing their appearance in the previous game.

* Thanks to [[spoiler:the appearance of Imran Zakhaev]] in ''VideoGame/CallOfDutyBlackOpsColdWar'' and its integration with the gameplay and lore of ''Warzone'', ''Black Ops'' is set in the same continuity as ''VideoGame/CallOfDutyModernWarfare2019''. Season 2 even centers around Woods and his team attempting to rescue Adler, who is being flown in to Verdansk.

*** ''WesternAnimation/LaffALympics'' is a crossover between numerous Hanna-Barbera shows, including ''Scooby-Doo'', ''WesternAnimation/{{Jeannie}}''[[note]]...[[ScrewedByTheLawyers by a technicality]]; Jeannie herself was not allowed to appear due to legal issues with Creator/ColumbiaPictures, the original distributers of the original ''Series/IDreamOfJeannie'' series. However, as Babu was an original character made for the cartoon adaptation, he was allowed to appear in ''Laff-A-Lympics''.[[/note]], ''Speed Buggy'', ''Dynomutt Dog Wonder'', ''Captain Caveman and the Teen Angels'', ''WesternAnimation/HongKongPhooey'', ''WesternAnimation/HuckleberryHound'', ''Yogi Bear'', ''WesternAnimation/YakkyDoodle'', ''WesternAnimation/AugieDoggieAndDoggieDaddy'', ''WesternAnimation/TheGreatGrapeApe'', ''WesternAnimation/QuickDrawMcGraw'', ''WesternAnimation/HokeyWolf'', ''WesternAnimation/PixieDixieAndMrJinks'', ''WesternAnimation/SnooperAndBlabber'', ''WesternAnimation/WallyGator'', ''WesternAnimation/TheFlintstones'', ''Jabberjaw'', ''ThePeterPotamusShow'', and ''[[WesternAnimation/TheCattanoogaCats It's The Wolf]]''. Characters from ''Josie and the Pussycats'' and ''WesternAnimation/WackyRaces'' were also supposed to return for the crossover, but [[ScrewedByTheLawyers legal issues with Filmation and Heatter-Quigley Productions respectively]] prevented that from happening. So... how's your head?

* Franchise/UniversalHorror is one of the earliest cinematic examples. From the 1930s to the 1950s, [[Creator/{{Universal}} Universal Pictures]] (later Universal Studios) released various horror films featuring [[Film/{{Dracula 1931}} Dracula]], [[Film/{{Frankenstein 1931}} Frankenstein's Monster]], [[Film/TheWolfMan1941 The Wolf Man]] and others, and eventually had them [[{{Crossover}} cross over]] with each other, creating or at least codifying the MonsterMash. Then the franchise combined with the Creator/AbbottAndCostello comedy team with surprising ease and created a whole series of its own as the two encountered nearly all the Universal monsters themselves.

* Because Creator/MarvelStudios holds the rights to all Creator/MarvelComics characters not given to other studios[[note]]''Franchise/XMen'', ''Comicbook/FantasticFour'', ''Comicbook/MenInBlack'', ''Comicbook/{{Blade}}'', and ''Comicbook/KickAss''[[/note]], they have managed to bridge together a single continuity family named the Franchise/MarvelCinematicUniverse with links between the characters' stories, and the franchise has continually grown as more characters are introduced. The success of the MCU has led other film companies to [[FollowTheLeader follow Marvel Studios' lead]], creating their own cinematic universes for comic-book properties they own the film rights to. The MCU itself can be broken down into various "Phases":

* This was implied with the appearance of an Franchise/{{Alien}} Skull in ''Film/{{Predator 2}}'' and later made confirmed with the release of ''Film/AVPAlienVsPredator''. In the Expanded Universe, it already was canon for years. However, with the release of ''Film/{{Prometheus}}'', it seems that there are two different timelines, one in which the universes are shared and one in which they are not.

* ''Film/FreddyVsJason'' shows that slasher film legends [[Franchise/ANightmareOnElmStreet Freddy Kruger]] and [[Franchise/FridayThe13th Jason Voorhees]] share a universe. But the film's comic book sequel ''Comicbook/FreddyVsJasonVsAsh'' reveals that the ''Franchise/EvilDead'' series also takes place in the same universe, as already hinted by the Necronomicon's brief appearance in ''Film/JasonGoesToHellTheFinalFriday''. The same film that revealed the latter two shared a universe. Word of God says that Jason's mother used the book to make DealWithTheDevil to bring her son back to life, making Jason a Deadite. Through various {{shout out}}s (like the evidence room scene in ''Film/BrideOfChucky'') and the ''Comicbook/JasonVsLeatherface'' comic book crossover, ''Film/ChildsPlay'', ''Franchise/{{Halloween}}'', ''Film/TheTexasChainsawMassacre'', and possibly more may also take place in the same universe.

* "The Girls Of Hollywood High," the second of ''two'' [[PoorlyDisguisedPilot Poorly Disguised Pilots]] (for a proposed series about Texan private detectives called ''[[IncrediblyLamePun Eyes Of Texas]]'') which aired as ''BJ And The Bear'' episodes, established that this shares a universe with another Glen A. Larson series - at one point the female [=PI=]s pay a visit to the Los Angeles Coroner's Office. John S. Ragin and Robert Ito turn up as the characters they play on that particular series, but Jack Klugman, alias ''Series/QuincyME'', is conspicuously ([[CreativeDifferences and given how he felt about Glen Larson understandably]]) absent.

* The ''TabletopGame/{{Warhammer 40000}}'' universe is shared by a large number of writers; the sheer scale of the setting in both space and time helps avoid continuity problems.

* The ''VideoGame/DeadOrAlive'' and ''VideoGame/NinjaGaiden'' series both take place in the same universe (owing to being developed by Creator/{{Tecmo}}[=/=]Team Ninja), complete with having characters originating in one becoming plot-integral in the other. Most notably (see the entry in CanonWelding for more examples), Ryu first crossed over to ''DOA'' and canonically won the second tournament, followed by Ayane playing a supporting role in the second ''Ninja Gaiden'' trilogy, with Kasumi making brief cameo appearances in ''Sigma 2'' before becoming a playable character herself in ''3: Razor's Edge''. Of course, characters [[YouDontLookLikeYou will change looks]] [[ArtShift to match the art style of the respective games]]. Fellow Tecmo IP ''VideoGame/FatalFrame'' is also in this shared universe due to Ayane's side story in ''Fatal Frame 5'', and ''VideoGame/{{Nioh}}'' turned out to be a prequel to ''Ninja Gaiden'', as an ancestor of Ryu named Jin Hayabusa appears in the lategame mission.

** This is particular apparent between the ''Ghost Recon'' and ''H.A.W.X.'' games - multiple missions in the latter have the player supporting Ghost teams, and (plot inconsistencies aside due to them coming out two years apart) ''Future Soldier'' depicts the same conflict as in ''H.A.W.X. 2''. There's also ''Ghost Recon 2''[='=]s plot kicking off from the sinking of the ''USS Clarence E. Walsh'', an event depicted about halfway through ''Splinter Cell: Chaos Theory'', and both ''Future Soldier'' and ''H.A.W.X. 2'' mention Voron, the Russian equivalent of Third Echelon from ''Conviction''.

* Creator/TelltaleGames' ''VideoGame/TheWalkingDead'' takes place in the same universe as [[ComicBook/TheWalkingDead the comic]]. Several characters from the comic series make appearances in supporting roles (or playable, in [[VideoGame/TheWalkingDeadSeasonTwo Michonne]]'s case), but sadly don't stick around for very long. These cameos include Hershel and Shawn Greene, Glenn, Michonne, [[spoiler:her daughters]], Pete, Siddiq, and Paul "Jesus" Monroe. Lilly was originally intended to be the same Lilly from the comic and Season One was meant to be her origin story, until ''[[Literature/TheWalkingDeadTheRoadToWoodbury The Road to Woodbury]]'' threw a wrench into that.

*** Also in the direct-to-DVD continuity, in ''WesternAnimation/ScoobyDooWrestlemaniaMystery'', there's a cameo appearance from the female members of the Team from ''WesternAnimation/YoungJustice''. However, WordOfGod by one of the creators of ''Young Justice'' clarified that this is probably a BroadStrokes version of the girls, which avoids complications with the later ''Scooby-Doo'' crossover with ''WesternAnimation/BatmanTheBraveAndTheBold''.

* ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'' and ''WesternAnimation/EvilConCarne'' are sister shows. ''Billy and Mandy'' has also crossed over with ''WesternAnimation/ThePowerpuffGirls'' and ''WesternAnimation/CodenameKidsNextDoor''.

* ''WesternAnimation/ThePowerpuffGirls'' shares a universe with {{Music/Gorillaz}} of all things, due to Ace of the Gangreen Gang temporarily replacing the band's bassist Murdoc.

* ''WesternAnimation/UltimateSpiderMan'', ''WesternAnimation/HulkAndTheAgentsOfSMASH'', and the first four seasons of ''WesternAnimation/AvengersAssemble'' are in the same continuity (Earth-12041).

* ''WebAnimation/BattleForDreamIsland'' and ''WebAnimation/InanimateInsanity'' apparently share the same universe, as in the ColdOpening to one episode of II, Nickel mentions escaping the Locker of Losers from BFDI (and footage from BFDI is seen at that point), which hints to the Nickel seen in the mentioned episode of BFDI being the same Nickel from II (it helps that Nickel is voiced by Adam Katz in both BFDI and II). Now that Nickel is a regular character in BFDIA, it's unknown if this is still the same Nickel from II. Many object shows also apparently share the same universe, as seen through {{Crossover Punchline}}s and [[TheCameo cameos]].

* ''WesternAnimation/{{Amphibia}}'', ''WesternAnimation/TheOwlHouse'' and ''WesternAnimation/GravityFalls'' are implied to take place in the same universe, as all three shows contain references and (background) cameos that place them in the same setting as each other. On a meta level, both of the former shows were created by [[Creator/MattBraly alumni]] [[Creator/DanaTerrace from]] ''Gravity Falls''. [[Recap/AmphibiaS3E15IfYouGiveAFrogACookie "If You Give A Frog A Cookie"]] and [[Recap/TheOwlHouseS2E21KingsTide "King's Tide"]] confirms the ''Amphibia'' and ''The Owl House'' connection, first with a blurry picture of the owl house itself taken through a flawed dimensional portal, and then with a news article about Anne Boonchuy open on Camila Noceda's ipad.

** [[WordOfGod According to]] Creator/GregWeisman, a crossover was planned between ''WesternAnimation/AtlantisTheLostEmpire'' and ''WesternAnimation/{{Gargoyles}}''. An audio track was recorded, but the episode was never made. This in turn would have included ''WesternAnimation/{{Tarzan}}'' in the same universe as them as the [[WesternAnimation/TheLegendOfTarzan animated series]] would have confirmed that Queen La was an Atlantean had the series continued.
** Repunzel and Eugene appear as guests at Elsa's coronation, placing ''WesternAnimation/Frozen2013'' in the same universe as ''WesternAnimation/{{Tangled}}'' and (presumably) its [[WesternAnimation/TangledTheSeries spinoff series]].

* ''WesternAnimation/{{Amphibia}}'', ''WesternAnimation/TheOwlHouse'' and ''WesternAnimation/GravityFalls'' take place in the same universe, as all three shows contain references and (background) cameos that place them in the same setting as each other. On a meta level, both of the former shows were created by [[Creator/MattBraly alumni]] [[Creator/DanaTerrace from]] ''Gravity Falls''.

*** ''WesternAnimation/LaffALympics'' is a crossover between numerous Hanna-Barbera shows, including ''Scooby-Doo'', ''WesternAnimation/{{Jeannie}}''[[note]]...[[ScrewedByTheLawyers by a technicality]]; Jeannie herself was not allowed to appear due to legal issues with Creator/ColumbiaPictures, the original distributers of the original ''Series/IDreamOfJeannie'' series. However, as Babu was an original character made for the cartoon adaptation, he was allowed to appear in ''Laff-A-Lympics''.[[/note]], ''Speed Buggy'', ''Dynomutt Dog Wonder'', ''Captain Caveman and the Teen Angels'', ''WesternAnimation/HongKongPhooey'', ''WesternAnimation/HuckleberryHound'', ''Yogi Bear'', ''WesternAnimation/YakkyDoodle'', ''WesternAnimation/AugieDoggieAndDoggieDaddy'', ''WesternAnimation/TheGreatGrapeApe'', ''WesternAnimation/QuickDrawMcGraw'', ''WesternAnimation/HokeyWolf'', ''WesternAnimation/PixieDixieAndMrJinks'', ''WesternAnimation/SnooperAndBlabber'', ''WesternAnimation/WallyGator'', ''WesternAnimation/TheFlintstones'', ''Jabberjaw'', ''ThePeterPotamusShow'', and ''[[WesternAnimation/TheCattanoogaCats It's The Wolf]]''. Characters from ''Josie and the Pussycats'' and ''WesternAnimation/WackyRaces'' were also supposed to return for the crossover, but [[ScrewedByTheLawyers legal issues with Filmation and Heatter-Quigley Productions respectively]] prevented that from happening. So... [[LoadsAndLoadsOfCharacters how's your head?]]

* Probably one of the most… unusual… ways to create a shared universe was done with the Cloverfield Universe. It all begun with ''Film/{{Cloverfield}}'', a {{Kaiju}} [[JustForFun/XMeetsY meets]] FoundFootage film which was financially and critically well received. Years later while working on a totally unconnected movie named ''The Cellar'', Creator/JJAbrams changed the title to ''Film/TenCloverfieldLane'' to take advantage on name recognition, even as the movie is unrelated except for extended online material making loose connections. The movie was, again, well received critically and made profit. Then it came Creator/{{Netflix}}'s sci-fi movie ''God's Particle'' made by Abrams' studio Bad Robot which went overbudget and, once again, the title was change to ''Film/TheCloverfieldParadox'' and some extra scenes were shot connecting it to the two previous films. Thus we have the first –-as far as we know-- cinematic universe that was never intended in the first place.

* A few other Creator/{{Capcom}} titles have their own shared continuity, though not necessarily with ''Street Fighter'' or any of its related series.

* The ''VideoGame/DeadOrAlive'' and ''VideoGame/NinjaGaiden'' series both take place in the same universe (owing to being developed by Creator/{{Tecmo}}[=/=]Team Ninja), complete with having characters originating in one becoming plot-integral in the other. Most notably (see the entry in CanonWelding for more examples), Ryu first crossed over to ''DOA'' and canonically won the second tournament, followed by Ayane playing a supporting role in the second ''Ninja Gaiden'' trilogy, with Kasumi making brief cameo appearances in ''Sigma 2'' before becoming a playable character herself in ''3: Razor's Edge''. Of course, characters [[YouDontLookLikeYou will change looks]] [[ArtShift to match the art style of the respective games]]. Fellow Tecmo IP ''VideoGame/FatalFrame'' is also in this shared universe due to Ayane's side story in ''Fatal Frame 5'', and ''VideoGame/{{Nioh}}'' turns out to be a prequel to ''Ninja Gaiden'', as an ancestor of Ryu named Jin Hayabusa appears.

** The United Galactic Space Force links ''thirty games'' into the same universe, [[Timeline/UGSFSeries known as the]] [[http://ugsf-series.com/ UGSF Series.]]

** ''VideoGame/{{Harvest Moon 64}}'' is a direct sequel to the original ''VideoGame/HarvestMoon1''. The ''64'' incarnations of Elli and Gray also appear ''VideoGame/HarvestMoonTreeOfTranquility''.

* Through CanonWelding, and Akuma's GuestFighter status, it's suggested that ''Franchise/{{Tekken}}'' and ''Franchise/StreetFighter'' are set in the same universe (or, at the very least, a version of ''Street Fighter'' exists in the ''Tekken'' universe). Likewise, with Geese Howard making an appearance as DLC, ''VideoGame/FatalFury'' and ''VideoGame/TheKingOfFighters'' can be lumped in there as well. You can probably also lump in ''VideoGame/FinalFantasyXV'' as well due to Noctis making an appearance as a GuestFighter.

** Several of SNK's properties are set in the same universe, if ''Franchise/TheKingOfFighters'' [[MassiveMultiplayerCrossover is any indication]]. ''The King of Fighters XIV'' backtracks slightly with its Another World Team (consisting of ''VideoGame/SamuraiShodown''[='s=] Nakoruru accompanied by Mui Mui and Love Heart, respectively from the pachinko games ''Dragon Gal'' and ''Sky Love'', all drawn into the ''KOF'' world because of a rift between dimensions), suggesting that the various SNK titles that may or may not fit neatly into the ''KOF'' continuity exist as part of a greater [[TheMultiverse multiverse]].
** ''KOF'' itself is an AlternateContinuity of the joint ''VideoGame/ArtOfFighting[=/=]VideoGame/FatalFury'' timeline [[SchrodingersCast by virtue of]] Geese Howard being KilledOffForReal in 1995's ''Real Bout Fatal Fury'' but sporadically appearing in ''KOF'' alive and well starting the following year. There's also the decade or so gap between ''AOF'' and ''FF'', reflected by a younger Geese serving as the TrueFinalBoss of ''Art of Fighting 2'', an older Ryo Sakazaki appearing in the [=PlayStation=] port of ''Fatal Fury: Wild Ambition'' as [[LegacyCharacter Mr. Karate II]], and one of Ryo's students (Marco Rodriguez/[[DubNameChange Khushnood Butt]]) being included as part of the ''VideoGame/GarouMarkOfTheWolves'' roster. Classic SNK wrestling game ''3 Count Bout'' is also connected, as Big Bomberder is a tag partner of Raiden, is shown squaring off with Big Bear (Raiden's {{Face}} persona) in artwork for ''Fatal Fury Special'', and is mentioned in Raiden's [[AllThereInTheManual profile story]] for ''KOF XII''.

* The ''VideoGame/SoulSeries'' takes place in the distant past of the ''VideoGame/{{Tekken}}'' series. The links between the two have been minimal (the most critical one being the presence of a man named [[LegacyCharacter "Yoshimitsu"]] leading a group of ninjas called the "Manji" in both, the one in ''Soulcalibur'' being the 16th century ancestor of the one who comes from ''Tekken'') but exist in the same reality.

* Creator/LeijiMatsumoto has a connected universe too -- of a sorts, since continuity has never been his thing. But you get [[Anime/CaptainHarlock Harlock]] showing up on the [[Anime/GalaxyExpress999 Galaxy Express]], ''Cosmo Warrior Zero'' saw the hunt for Harlock from the other side. ''[[Anime/SpaceBattleshipYamato Yamato]]'' would have had a Harlock encounter, but it was cut for time (but the ''Yamato'' has shown up in the background in some of ''Harlock'').