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2%% Image Pickin thread failed to find a new pic: https://tvtropes.org/pmwiki/posts.php?discussion=17004702260.89810300&page=1
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4[[quoteright:350:[[Creator/SethMacFarlane https://static.tvtropes.org/pmwiki/pub/images/rsz_16902.png]]]]
5[-[[caption-width-right:350:[[WesternAnimation/TheClevelandShow Cleveland]], [[WesternAnimation/AmericanDad Stan]] and [[WesternAnimation/FamilyGuy Peter]] [[MexicanStandoff pointing guns at each other]].]]-]
6
7->''"You think you're the only superhero in the world? Mr. Stark, you've become part of [[Franchise/MarvelCinematicUniverse a bigger universe]]. You just don't know it yet."''
8-->-- '''Nick Fury''', ''Film/IronMan1''
9
10When TheVerse is shaped by multiple creators writing independently, such as how many different comic book titles can be set in a collective continuity. This makes it easy to have a {{Crossover}}. In contrast, a single TV series with multiple writers is just the Verse with subcontractors. Likewise, when different continuities by the same author are tied together later by an IntercontinuityCrossover, that's CanonWelding.
11
12As a rule, simply having a {{Crossover}} is not enough to qualify as a SharedUniverse, as those tend to be standalone stories and have no further connections beyond that. Major events should be referenced across the different projects or characters are mentioned as [[HeroOfAnotherStory having their own adventures somewhere else]].
13
14The nature of the Shared Universe -- multiple independent creators creating one {{continuity}} -- can easily lead to a ContinuitySnarl if it lasts a long time and the different creators don't take care to keep things straight. If a Shared Universe starts relying too heavily on continuity, especially if it's obscure or too reliant on each work in the Verse, a ContinuityLockOut may occur. When creators disagree on the direction the Verse should take, they may fight ArmedWithCanon. If some corners of the continuity are "off limits" to some characters to avoid theme-drift or plot derailing, then SupermanStaysOutOfGotham.
15
16When they [[OlderThanSteam go back centuries]], [[OlderThanFeudalism and even further]] and [[OlderThanDirt further]], long before copyrights and trademarks, the Shared Universe turns into one or more actual mythologies. Compare with TheVerse, ExpandedUniverse, {{Canon}}. Contrast with ShoutOut.
17
18When two works are considered to share a universe by the fandom, see FanonWelding. Not to be confused with PublicDomainCanonWelding, which is when an official work uses PublicDomain assets and presents it as a Shared Universe.
19----
20!!Examples:
21[[foldercontrol]]
22
23[[folder:Anime & Manga]]
24* Several of Creator/AkaAkasaka's works occur in the same universe. This was established in a chapter of ''Manga/OshiNoKo'' wherein Ruby mentions having had a photoshoot done by one [[spoiler:[[Manga/KaguyaSamaLoveIsWar Kaguya]] ''[[Manga/KaguyaSamaLoveIsWar Shirogane]]'']]. Later on, ''Manga/RenaiDaikou'' features mentions Frill, Abiko, and ''Sweet Today'' from ''Oshi no Ko'' as well.
25* ''Manga/BurnTheWitch2018'' and ''Manga/{{Bleach}}'' take place in the same world. [[spoiler:They're more connected than you'd think, as Wing Bind is revealed at the end of the pilot to be an English branch of Soul Society.]]
26* A truly bizarre case is ''Anime/GaoGaiGar'' and ''Anime/{{Betterman}}'', which take place in the same universe despite the former being a SuperRobot {{Reconstruction}} and the latter a RealRobot horror series. The two even have an official [[Literature/KingOfKingsGaogaigarVSBetterman crossover novel]].
27* ''Manga/CaseClosed'' and ''Manga/MagicKaito'' exist in the same universe. In fact Kaito Kid is a reoccurring nemesis for Shinchi Kudo/Conan Edogawa, and is even his EvilTwin of sorts. Technically ''Manga/{{Yaiba}}'' would be in the same universe too, although that's more of a ShowWithinAShow.
28* Both ''Manga/CatsEye'' and ''Manga/CityHunter'' (both created by Tsukasa Hojo) have referenced each other's protagonists at times, implying they're set in the same universe. The Kisugi sisters (protagonists of ''Cat's Eye'') eventually showed up in ''Anime/CityHunterShinjukuPrivateEyes''.
29* ''Manga/CromartieHighSchool'' and ''Anime/DiGiCharat''.
30* ''Franchise/DragonBall'': ''Manga/DragonBall'', ''Manga/DrSlump'', and ''Manga/JacoTheGalacticPatrolman'' (plus its short spin-off ''Sachie-chan Guu!'') share a universe; the main characters from all three series even met each other in a {{filler}} episode of ''Anime/DragonBallSuper''. ''Neko Majin'' is set here, though its parodic nature makes it canon status dubious, and ''Pola and Roid'', ''Tomato'', ''Girl Detective'', ''Jiya'', and ''Wonder Island'' all connect to ''Dr. Slump'' via cameos, placing them here too. Various other limited series and one-shots from Toriyama such as ''Cashman'' are possibilities given the vast scope of universe and very similar designs for technology and characters, but that could just be Toriyama recycling (like how Satan in ''Manga/SandLand'' happens to look exactly like Dabra from ''Dragon Ball'').
31* ''Manga/HayateTheCombatButler'' and ''Manga/SeiyusLife''.
32* ''Anime/IdolAngelYokosoYoko'' and ''Anime/IdolDensetsuEriko'' - this is confirmed when Ichijuin from ''Eriko'' shows up in ''Yokoso Yoko'' as Kyoko's manager.
33* ''Anime/CowboyBebop'', ''Anime/CaroleAndTuesday'', ''Anime/SamuraiChamploo'', and ''Anime/SpaceDandy'' all are stated as taking place in the same universe by WordOfGod for all of them. While ''Cowboy Bebop'' and ''Carole and Tuesday'' are set primarily in the same timeline and area, with some commonalities between them, the latter two are respectively an AlternateHistory and set in an area of space where aliens freely exist. Take of that what you will.
34* ''Manga/HowHeavyAreTheDumbbellsYouLift'' and ''Manga/KenganAshura''.
35* Implied in ''Anime/IsekaiQuartet''. Aqua figures out that [[Literature/Overlord2012 Ainz]], [[Literature/ReZero Subaru]] and [[Literature/TheSagaOfTanyaTheEvil Tanya]] all hail from Japan just like [[Literature/KonoSuba Kazuma]], suggesting they all come from the same world.
36* Creator/LeijiMatsumoto has the aptly named ''Anime/{{Leijiverse}}''. It is a connected universe of sorts, since continuity has never been his thing. But you get [[Anime/CaptainHarlock Harlock]] showing up on the [[Manga/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'').
37* ''Literature/{{Oreimo}}'' and ''Literature/EromangaSensei'' take place in the same universe. Not surprising, as they're both written by the same author. [[spoiler:It wasn't too obvious in the beginning, but was made very clear when Kyousuke, Kirino, Kuroneko, and Saori make a cameo in Episode 11 of Eromanga Sensei.]]
38* ''Literature/SwordArtOnline'' and ''Literature/SwordArtOnlineAlternativeGunGaleOnline'' exist in the same universe and occur alongside each other, only focusing on different sets of characters. However the events from ''Sword Art Online'' are constantly mentioned in ''Gun Gale Online''. ''Literature/AccelWorld'' appears to exist in the same universe too, but it's set 21 years in the future from SAO so it's a lot less apparent.
39* Takuma Yokota has established a shared universe between his various series starting with the short story ''Koganeiro'' and continuing with the serialized series ''[[Manga/StraightenUpWelcomeToShikaHighsCompetitiveDanceClub Sesuji wo Pin!]]'' and ''Shudan!'' which contain grown up versions of the characters from Koganeiro as supporting characters. [[spoiler:''The Story Between a Dumb Prefect and a JK with an Inappropriate Skirt Length'' is also confirmed as taking place in the same universe when Michikage and Naomi from Sesuji are brought in as professional dancers to help with the school's cultural festival.]]
40* ''Manga/TeasingMasterTakagiSan'' and ''Fudatsuki no Kyouko-chan'' by the same author are in a shared universe. Mina, Sanae, and Yukari from ''Ashita wa Doyoubi'' make cameos in one chapter of ''Fudatsuki no Kyouko-chan'', while Mina Hibino herself is likely related to Haruka Hibino from ''Kyouko-chan''.
41* The ''Franchise/YuGiOh'' universe consisting of the NAS adaptation and at least some of its spinoffs.
42* ''Manga/YuiKamioLetsLoose'' shares continuity with ''Manga/NuraRiseOfTheYokaiClan'' as [[spoiler:Ryuji Keikain]] appears at Yui's behest in Chapter 14 and [[spoiler:returns in the final chapter of the series]].
43[[/folder]]
44
45[[folder:Comic Books]]
46* The Amalgam universe, a short-lived crossover between DC and Marvel. It had several canonical crossovers and a few characters who break the fourth wall in a way that essentially links the two universes.
47* ''ComicBook/ArchieComics'', ''ComicBook/SabrinaTheTeenageWitch'', and ''ComicBook/JosieAndThePussycats'' are all a part of one ''Franchise/{{Archie|Comics}}'' universe and frequently crossover.
48* Creator/DCComics:
49** Franchise/TheDCU is an example of this, with multiple monthly titles who might not even have the same creative team month to month. Quite frequently, certain characters will make appearances in each other's books, and that's not getting into the numerous {{Crisis Crossover}}s.
50** The {{Elseworld}} titles ''ComicBook/BatmanTwoFaces'' (a retelling of ''Literature/TheStrangeCaseOfDrJekyllAndMrHyde'' where [[spoiler:Bruce Wayne]] is Dr. Jekyll and [[spoiler:the Joker]] is Mr. Hyde) and ''ComicBook/TheSupermanMonster'' (a retelling of ''Literature/{{Frankenstein}}'' where Lex Luthor plays the part of Victor Frankenstein with Superman serving as the monster he creates) are indicated to take place in the same continuity, as both stories have a FramingDevice of Commissioner James Gordon and Peregrine White exchanging tales.
51** All of the ''ComicBook/HannaBarberaBeyond'' comics were originally intended to be an example of this, though this quickly fell by the wayside as each new creative team and book ignored this idea in favor of freely doing their own standalone takes on their given properties.
52* Creator/DCThomson comics, particularly ''ComicBook/TheBeano'', do this constantly. For added {{parental bonus}}es, there are also cameos of characters from discontinued comic strips (or even comic ''books''!) that appear as well for a brief gag or for nostalgia purposes.
53* The action heroes of ''ComicBook/FutureQuest'' are part of a multiverse, though it is shown that ''WesternAnimation/JonnyQuest'', ''WesternAnimation/{{Birdman|1967}}'' and ''Mightor'' exist in the same Earth.
54* Creator/ImageComics has had a handful of examples:
55** Virtually all of the early Creator/ImageComics titles were set in the same universe, with the stars of any given book often making guest appearances in another or ahving their origins tied to characters from other series. ComicBook/{{Spawn}}'s killer, for example, is Chapel from ''ComicBook/YoungbloodImageComics''. However, one of the core ideas of the company was and always has been creator ownership. This caused a ContinuitySnarl no less than ''twice''; Once, when Creator/RobLiefeld picked up his characters and left to create Awesome Comics, necessitating that Spawn's killer be retconned to be Jessica Priest, and again when Jim Lee took ''his'' properties and made his Wildstorm Studios into a DC imprint, which required an entire crossover, ''Shattered Image'', to excise the Creator/WildStorm characters from continuity.
56** ''ComicBook/{{Invincible}}'' shoulders a lot of weight when it comes to establishing a larger Image universe. Big events (like the funeral of the Guardians of the Globe or the Invincible War) feature just about anyone who's anyone in the company at the time. At one point Mark was even a member of the Pact, a team consisting of him, [[ComicBook/NobleCauses Zephyr Noble]], ComicBook/{{Firebreather}}, and ComicBook/ShadowHawk.
57** After IDW lost the license to ''Franchise/{{Transformers}}'' and ''Franchise/GIJoe'', the rights were acquired by Robert Kirkman's imprint Skybound, who proceeded to introduce their own Hasbro Shared Universe titled ''[[ComicBook/EnergonUniverse The Energon Universe]]''. Featuring not just Transformers and G.I. Joe titles but a brand new IP called ''ComicBook/VoidRivals''.
58* ''ComicBook/JudgeDredd'' and its spinoffs share a universe with ''ComicBook/StrontiumDog'', ''ComicBook/RogueTrooper'', ''ComicBook/HarlemHeroes'' and their respective spinoffs. Earlier stories also suggested that ''Invasion!/ComicBook/{{Savage}}'', ''ComicBook/ABCWarriors'', ''ComicBook/RoBusters'' and ''ComicBook/{{Flesh}}'' were part of this universe, but these have subsequently been retconned out.
59* Creator/MarvelComics has created several universes that are extensively contributed to by multiple writers. Some were always connected to other settings via TheMultiverse - and a few had connections added retrospectively.
60** The Franchise/MarvelUniverse, referred to in-universe as Earth-616.
61** The ComicBook/UltimateMarvel universe, an UltimateUniverse distillation of the Franchise/MarvelUniverse.
62** ComicBook/Marvel2099, a possible future of the Franchise/MarvelUniverse with a touch of {{Cyberpunk}}.
63** ComicBook/TheNewUniverse, intended as a more realistic setting with a single modern MassEmpoweringEvent as its PointOfDivergence from the real world.
64* The ComicBook/MassiveVerse, primarily published through Image Comics[[note]]''Inferno Girl Red'' is a self-published Kickstarter project[[/note]], is a shared universe that began with ''ComicBook/RadiantBlack'' in 2021 before formally launching in 2022 with a one-shot crossing the three characters over, and its second series, ''Rogue Sun'', launching after. All three of its primary creators are fans of {{Sentai}} who have worked on licensed comics for Sentai properties, and it is a big part of the visual design of the universe.
65* ''ComicBook/NinjaHighSchool'' and ''ComicBook/GoldDigger'' loosely share a universe and occasionally engage in crossovers or use each other's villains.
66* ''ComicBook/{{Revolution|2016}}'' has establishing the ComicBook/HasbroComicUniverse at its core; ''Franchise/{{Transformers}}'', ''[[ComicBook/GIJoeIDW G.I. Joe]]'', ''WesternAnimation/{{MASK}}'', ''ComicBook/ActionMan'', ''ComicBook/MicronautsIDW'' and ''[[ComicBook/RomSpaceknight ROM]]'' (the latter two separate from their older Marvel histories). In addition, WordOfGod has ''[[ComicBook/JemAndTheHologramsIDW Jem]]'' in the same universe, [[ExiledFromContinuity just not in the crossover]] [[LighterAndSofter because slice of life music]] [[DarkerAndEdgier and armed men and metal aliens]] [[MoodWhiplash do not mix well]], and also that ''[[ComicBook/MyLittlePonyFriendshipIsMagicIDW My Little Pony]]'' isn't a part of it (yet).
67* ''ComicBook/GilgameshTheImmortal'' is part of a shared universe with several other works written by Robin Wood, such as Nippur of Lagash (a comic about the adventures of a warrior in ancient Mesopotamia) Or-Grund (about the adventures of a barbarian hero in a world of SwordAndSorcery), Raycon (an astronaut who after a space journey that lasts centuries, returns to a post-apocalyptic planet Earth), among others, all have in common the presence of The Primordials, an alien race AlwaysChaoticEvil obsessed with destruction and conquest. Inconsistencies abound, but that's because this universe was accidental and unplanned from the beginning.
68[[/folder]]
69
70[[folder:Comic Strips]]
71* ''ComicStrip/SafeHavens'' and ''ComicStrip/OnTheFastrack'', both comics done by Bill Holbrook, take place in the same universe and have on occasion crossed over with each other (a major point being Fastrack funding the mission to Mars Samantha of Safe Havens is planning). This has actually been downplayed in recent years, especially since it's been hinted the comics don't take place at the same ''time'' (a 2020 comic in ''Fastrack'' implies the mission to Mars hadn't happened yet, while the 2020 ''Havens'' comics has the crew on their return trip from Mars).
72* ''ComicStrip/LittleOrphanAnnie'' and ''ComicStrip/DickTracy'', given how the FullyAbsorbedFinale of the first was handled.
73[[/folder]]
74
75[[folder:Fan Works]]
76* ''Fanfic/AlwaysVisible'': It is mentioned that Delia's family lived in New York before moving to Portland, which could be interpreted to mean that '''Always Visible''' is actually a sequel to ''Omen IV: The Awakening''.
77* ''Fanfic/YuYuGiDigiMoon'' has a shared universe consisting of ''Manga/YuYuHakusho'', ''Franchise/YuGiOh'' (up to ''[[Anime/YuGiOh5Ds 5D's]]''), ''Franchise/{{Digimon}}'' (which starts off with ''[[Anime/DigimonTamers Tamers]]'' and ''[[Anime/DigimonFrontier Frontier]]'', then ''[[Anime/DigimonAdventure Adventure]]/[[Anime/DigimonAdventure02 02]]'' and ''[[Anime/DigimonDataSquad Data Squad]]'' are added), and ''Franchise/SailorMoon''.
78** It also has an AU called ''Fanfic/GuiltyCrownTheLostKingdoms'' which is mainly set with ''Anime/GuiltyCrown'' while the characters of ''Anime/PuellaMagiMadokaMagica'' begin to share their existence. Later on shows ''Literature/SwordArtOnline' exist in this universe as well.
79* The ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' stories ''Fanfic/RainbowInTheDark'' and ''Fanfic/RacerAndTheGeek'' have small nods, links and references. Both authors have implied that their stories exist in the same universe, although perhaps not in the same continuity. [[ShrugOfGod This is still completely nebulous]].
80* The ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic ''Fanfic/BlackQueenRedKing'' by [=wille179=] and ''[[http://www.fimfiction.net/story/177244/gatekeeper-prince-of-darkness Gatekeeper: Prince of Darkness]]'' by [=InfiniteBrony=] are two sides to the same story, crossing over at several points. Even more authors are attempting to join, according to WordOfGod.
81* ''Fanfic/{{Dangerverse}}'' fans have written numerous fics of their own set in the same universe, many of which have been integrated into the canon, as well as AlternateUniverseFic aplenty. The author has no qualms about working in ideas from her friends and fans.
82* The AU Shadowverse stories about ''Anime/MagicalGirlLyricalNanoha'' characters Lutecia and Vivio, created by [=RadiantBeam=], also involve many other writers who write about secondary characters in that universe. Each of the various authors tend to write around different themes (spy-thriller, emotional drama, political-thriller, etc.) despite writing in the same AU.
83* More than a decade after the release of ''Under The Bridge'', ''WesternAnimation/ChipNDaleRescueRangers'' fan fiction writers love to include enough elements from ''Fanfic/TheNowakverse'' into stories of their own, especially the main original characters.
84* Most fanfiction writers seem to incorporate ''Manga/RanmaOneHalf'', ''Manga/InuYasha'', and other works by Creator/RumikoTakahashi in the same universe.
85* Similarly, it's almost more common to see writers have ''Franchise/SailorMoon'' and ''Ranma'' in a shared universe than not, most times with the justification that "They're from different wards in Tokyo" (Minato and Nerima, respectively).
86* ''Literature/HarryPotter'' fanfiction often has cameos from ''Series/WizardsOfWaverlyPlace'' and ''Manga/{{Hellsing}}'', due to the similar premises of the first and the second occurring in England as well. Crossovers with ''Literature/{{Percy Jackson|AndTheOlympians}}'' are also not uncommon.
87* ''Franchise/{{Naruto}}'' and ''Manga/{{Bleach}}'' cross over so much that it is very common to see OC ninja share their names instinctively.
88* The bulk of the ''Fanfic/PonyPOVSeries'' is written by the same guy and his editors, but quite a bit of the RecursiveFanfiction has been declared officially canon (or at least LooseCanon) by said author.
89* ''[[Fanfic/RainbowDoubleDashsLunaverse The Lunaverse]]'' is a ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' AU where Celestia became evil instead of Luna. It started with one story by [=RainbowDoubleDash=] who promptly opened it up to anyone else who wants to write in it. Multiple writers took him up on this offer.
90* Lunaverse alum [=GrassAndClouds2=] is now running a SharedUniverse of his own, FanFic/TheCadanceverse. It is music-themed, and features Cadance as the princess (after both Celestia and Luna were corrupted), Octavia as her student, and Vinyl, Fluttershy, Lyra, and two background ponies as the other Element Bearers.
91* Like the Lunaverse, ''Fanfic/LifeInManehattan'' (aka the Manehattanverse) is an AU of ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', this one based on the premise that the Elements of Harmony were found some time before the pilot and taken to a museum in Manehattan; therefore, it's there that Twilight Sparkle goes for the Summer Sun Celebration, makes friends, and ends up living. The first story by the original author covers the alternate events of the pilot, after which other authors have started writing their own tales of the Manehattan 6.
92* In perhaps the greatest example of universe welding, the efforts of the author of ''Fanfic/TheElementsOfHarmonyAndTheSaviorOfWorlds'' created the ultimate shared universe. The Discord from a universe where neither Celestia nor Luna were corrupted won for a few years thanks to the plunder seeds, but grew bored, and thus recruited Spike from the ''[[Fanfic/BedHeadsFlipverse Flipverse]]'', Rainbow Dash from the ''[[Fanfic/RainboomsAndRoyalty Dashverse]]'', Pinkie Pie from the "Hasbroverse", Ditzy from the Lunaverse, Octavia from the Cadenceverse, and Auntie from the Maehattanverse to go on an epic quest across 6 locations to find that universe's new Elements of Harmony in ''[[https://www.fimfiction.net/story/165235/multiversal-harmony Multiversal Harmony]]''.
93* After the original ''Fanfic/{{Pokeumans}}'' story became popular and successful enough to have its own spin-offs on the same concept, these all the share the same universe and characters from one series occasionally appear or get a notable mention in another series. Said shared universe is the world -- [[TheFourthWallWillNotProtectYou the]] ''[[TheFourthWallWillNotProtectYou real]]'' [[TheFourthWallWillNotProtectYou world]].
94* The story ''Fanfic/{{Avalon|Dave19941000}}'' by [=Dave19941000=] is an ''Anime/NeonGenesisEvangelion''/''Franchise/MarvelCinematicUniverse'' crossover which shares its setting with the writer's ''Series/StargateSG1''/''Series/BattlestarGalactica2003'' crossover ''Brother's Betrayal'', and the ''Series/StargateSG1'' fanfic ''Stargate: Triangulum''.
95* The ''Webcomic/HetaliaAxisPowers'' AU fic ''Fanfic/MonarchyOverTheDanube'' makes a number of nods to the fanfic ''[[https://www.fanfiction.net/s/6134300/1/Eva Eva]]'' by [[https://www.fanfiction.net/u/99977/Marj Marj.]] [[spoiler:With Eva herself visiting her sister, the future Danubian Federation.]]
96* ''WebVideo/DragonBallZAbridged'' and ''WebVideo/YuGiOhTheAbridgedSeries'', seeing as how often they've appeared in each other's shows, especially as one video claims that Kaiba is [[spoiler:a robot built by Frieza]].
97** Similarly, a [[https://www.youtube.com/watch?v=Yyi2IaxO00I recent video confirms]] that ''WebVideo/YuYuHakushoAbridged'' takes place in the same world as well, which is especially fitting as Creator/{{Lanipator}} (creator of ''[=YYHA=]'') is one of the principle members of Creator/TeamFourStar.
98* ''Fanfic/PokemonResetBloodlines'' forms the core of what fans have dubbed the Resetverse, containing side stories and one shots.
99* Tropers/TyeDyeWildebeest has some of his ''[[WesternAnimation/TheLoudHouse Loud House]]'' fanfics [[labelnote:the list]]Mall Rats, Boys and Girls, Lincoln's Confidant[[/labelnote]] in a shared universe with ''Fanfic/PeekingThroughTheFourthWall''.
100* ''Fanfic/CollatedAccountsOfTheInfinityTrainASummary'': The last excerpt reveals the ''Infinity Train'' and ''Franchise/StarTrek'' universes to be one-and-the-same, being a Captain's Log utilizing stardates that the author sourced from the "Federation".
101* The Altered Destinies is a series of ''Manga/RanmaOneHalf'' works of fan fiction looking at alternative histories for the characters. This series can easily cause ArchivePanic as not only does each fanfic in it represent an AlternateUniverse each author has their own [[TheMultiverse Multiverse]]. There's also many cases where the writers themselves aren't aware that they're apart of this universe. Either because of RightHandVersusLeftHand where they use elements from Altered Destinies to write their story unknowingly creating a sequel for example the [[UsefulNotes/FurryFandom Pokegirl]] fanfics, or their story was integrated through AscendedFanon. For example when Shinobu Saotome was introduced in ''[[https://www.fanfiction.net/s/11206253/1/Thunder-in-the-Mountains Thunder in the Mountains]]'' many suggested that she originated from ''[[https://www.fanfiction.net/s/4760185/1/It-s-the-shinobi-life-for-us It's the shinobi life for us]]''
102* ''Fanfic/TheManyDatesOfDannyFenton'' is a crossover between ''WesternAnimation/DannyPhantom'' and various other franchises, including but not limited to ''WesternAnimation/KimPossible'', ''Franchise/Ben10'', ''WesternAnimation/SixTeen'', ''Franchise/SailorMoon'' and ''WesternAnimation/TeenTitans''. The premise of the original fanfiction is Danny going on blind dates for a month with a girl from each of those other franchises. Spin-offs that take place with whomever he chose as his girlfriend would involve meeting other characters.
103* While no official name has been given, [[https://www.youtube.com/channel/UComJjpEGvbavdpH7zpNZRxg Bird Keeper Toby]]'s [[https://www.youtube.com/playlist?list=PLEXzgrPkT-mUyWTRHo-yPO3_c8L9zuCgy Pokemon Tempest]] series links back to three other Poketuber's [[https://www.youtube.com/playlist?list=PLp67IGu5BvKWDEE2-jNkwxzeg7bN4Yk51 original]] [[https://www.youtube.com/playlist?list=PLOTw9wVd8iFAzPSP6yAr-2IudW24lmNaS fakemon]] series, creating a Poketuber fakemon shared world. It was even supported by [[https://www.youtube.com/channel/UCugriktWCA3YRLx7RHvQCFg HoopsandHipHop]], who popularized the trend with his [[https://www.youtube.com/playlist?list=PLjcoatQU2O1JO7B0cdAXFxMesGrnD92-V Pokemon Cardinal]] series and [[Main/CanonWelding then made]] a [[https://www.youtube.com/watch?v=POXz8rpsq_E prologue]] that features cameos of the regional professors from all four fakemon regions.
104[[/folder]]
105
106[[folder:Film -- Animation]]
107* The ''WesternAnimation/DCUniverseAnimatedOriginalMovies'' were originally conceived as standalone films, with the occasional sequel or two-parter. While they still do this they have also created two animated movie universes:
108** Starting with ''WesternAnimation/JusticeLeagueTheFlashpointParadox'', there is the WesternAnimation/DCAnimatedMovieUniverse which at first focused on ComicBook/New52 based stories before using material from other parts of DC's history. There are also two comics set in this universe. This universe lasted from 2013 to 2020, and is revisited in a short film in 2022.
109** After the DCAMU ended, the 2020 film ''WesternAnimation/SupermanManOfTomorrow'' began the WesternAnimation/{{Tomorrowverse}} which is LighterAndSofter when compared to the DCAMU.
110* ''Franchise/DisneyAnimatedCanon'':
111** The Grand Duke and The King from ''WesternAnimation/{{Cinderella}}'' make ''[[FreezeFrameBonus very]]'' brief cameos in ''WesternAnimation/{{The Little Mermaid|1989}}'', and a painting of Princess Aurora and Prince Phillip from ''WesternAnimation/SleepingBeauty'' can be seen at one point in Prince Eric's castle.
112** [[WesternAnimation/BeautyAndTheBeast Belle]] makes a brief cameo in ''WesternAnimation/{{The Hunchback of Notre Dame|Disney}}''.
113** Similarly, ''WesternAnimation/HerculesTheAnimatedSeries'' features a crossover where WesternAnimation/{{Hercules}} and WesternAnimation/{{Aladdin}} meet, and Ursula from ''WesternAnimation/{{The Little Mermaid|1989}}'' cameos in an episode featuring Poseidon.
114** [[WordOfGod According to]] Creator/GregWeisman, [[WhatCouldHaveBeen 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.
115** Rapunzel and Eugene appear as guests at Elsa's coronation, placing ''WesternAnimation/{{Frozen|2013}}'' in the same universe as ''WesternAnimation/{{Tangled}}'' and (presumably) its [[WesternAnimation/TangledTheSeries spinoff series]].
116* ''WesternAnimation/SpiderManIntoTheSpiderVerse'' is intended by Sony to start an animated cinematic universe based on Spider-Man. After the critically acclaimed reception of the film, Sony announced that they are planning a sequel and a female-led spin-off movie possibly starring Spider-Gwen. Creator/PhilLordAndChrisMiller, who served as the producers and writers on the film, have also expressed interest in giving Spider-Ham his own animated series.
117* Creator/WarnerBros intends to start a cinematic universe of Creator/HannaBarbera properties beginning with ''Franchise/ScoobyDoo'' adaptation ''WesternAnimation/{{Scoob}}'', with films based on ''WesternAnimation/TheJetsons'', ''WesternAnimation/TheFlintstones'' and ''WesternAnimation/WackyRaces'' also confirmed to be in development. As stated through prerelease material for ''WesternAnimation/{{Scoob}}'', other properties that are confirmed to exist in this universe include ''WesternAnimation/CaptainCavemanAndTheTeenAngels'' and ''WesternAnimation/DynomuttDogWonder''.
118[[/folder]]
119
120[[folder:Film -- Live-Action]]
121* Franchise/UniversalHorror is one of the earliest cinematic examples, even likely being the TropeMaker. 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.
122** {{Averted}} with more recent Universal horror/adventure films like ''Film/TheMummyTrilogy'', ''Film/VanHelsing'' and the 2010 version of ''Film/{{The Wolfman|2010}}'' as they did not share a universe.
123** In 2014 Universal started trying to do this again, first with ''Film/DraculaUntold'' and then with ''Film/{{The Mummy|2017}}''. This new shared universe was to be known as the ''Film/DarkUniverse'', but due to lackluster performance by ''The Mummy'', [[https://io9.gizmodo.com/universals-shared-monster-movie-universe-has-been-put-o-1820249731 these plans have (for now) been cancelled]].
124* Creator/KevinSmith's View Askewniverse, consisting of ''Film/{{Clerks}}'', ''Film/{{Mallrats}}'', ''Film/ChasingAmy'', ''Film/{{Dogma}}'', ''Film/JayAndSilentBobStrikeBack'', and ''Film/{{Clerks II}}'', which are all set in the NJ/NY area (well, mostly, as ''Dogma'' and ''[=J&SBSB=]'' both have {{Road Trip Plot}}s), and which share many characters/actors.
125** Jay and Silent Bob are due to appear in the upcoming ''Moose Jaws'', which would put this and the other installments of the ''True North Trilogy'', ''Film/Tusk2014'' and ''Film/YogaHosers'' in the same universe.
126* A lot of Happy Madison productions [[https://www.youtube.com/watch?v=tjbrKseSURU share a universe]], with InexplicablyIdenticalIndividuals given the differing roles of Creator/AdamSandler. These include ''Film/HappyGilmore'', ''Film/BillyMadison'', ''Film/BigDaddy'', ''Film/TheWaterboy'', ''Film/TheWeddingSinger'', ''Film/LittleNicky'', ''Film/JoeDirt'' and its sequel, ''Film/MrDeeds'', ''WesternAnimation/EightCrazyNights'', ''Film/TheLongestYard'', ''Film/GrandmasBoy2006'', ''Film/{{Click}}'', ''Film/INowPronounceYouChuckAndLarry'', ''Film/GrownUps'' and its sequel, and ''Film/ThatsMyBoy''
127** ''Film/HappyGilmore'''s Chubbs Peterson is seen in Heaven in ''Film/LittleNicky.''
128** In a non-Happy Madison connection, Callahan Auto from ''Film/TommyBoy'' is referenced in dialogue in ''Film/FiftyFirstDates''; a medical center there is also named the Callahan Institute, the implication being it was one of the beneficiaries of Callahan's philanthropy.
129** The character Whitey Duvall, the high-voiced elderly basketball referee, debuted in Sandler's one-shot album ''Stan and Judy's Kid'', had a cameo appearance in ''Film/LittleNicky'', and was the deuteragonist of the Happy-Madison animated film ''WesternAnimation/EightCrazyNights''.
130** Farmer Fran from ''Film/TheWaterboy'' shows up in ''Film/JoeDirt''.
131** Rob Schneider's "You can do it!" Cajun is in ''Little Nicky'', ''The Waterboy'', and ''Film/TheLongestYard''.
132** A cop played by Dan Patrick appears in both ''The Longest Yard'' and ''Film/INowPronounceYouChuckAndLarry''.
133** The children's book "The Puppy Who Lost His Way" features in both ''Chuck and Larry'' and ''Billy Madison''.
134** The O'Doyle family from ''Film/BillyMadison'' (the surviving ones anyway) are the neighbors of the main character of ''Film/{{Click}}''. Sandler still hates them.
135** The minister officiating the marriage ceremony in ''Film/ThatsMyBoy'' is Father Shakalu, who was known as Doctor Shakalu in ''Film/GrandmasBoy2006''.
136** Nazo, the food delivery guy played by Rob Schneider in ''Film/BigDaddy'', cameos in ''Film/MrDeeds''.
137** Eric Lamensoff, Kevin James' character ''Film/GrownUps'', is name-dropped in ''Click'' ''and'' ''Film/TheWeddingSinger''.
138* 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. In fact, the success of it is so immense that it may well be the TropeCodifier. The MCU itself can be broken down into various "Phases":
139** Phase 1: Focusing on introductory and world-building films like ''Film/IronMan1'', ''Film/{{The Incredible Hulk|2008}}'', ''Film/IronMan2'', ''Film/{{Thor}}'', and ''Film/CaptainAmericaTheFirstAvenger'', with the whole thing coming together in CrisisCrossover ''Film/{{The Avengers|2012}}''.
140** Phase 2: A running story centering on the gradual panic over potential alien invaders and the appearance of the Infinity Stones drives ''Film/IronMan3'', ''Film/ThorTheDarkWorld'', ''Film/CaptainAmericaTheWinterSoldier'' and ''Film/{{Guardians of the Galaxy|2014}}''. This culminates in ''Film/AvengersAgeOfUltron'', where super-science gone wrong nearly destroys the Earth and Thor realizes that someone ''wants'' the Infinity Stones found and united. ''Film/AntMan1'' is a DenouementEpisode that's mostly there to introduce a new hero to the sandbox. In this phase they also began to introduce several TV series set in the MCU, like ''Series/AgentsOfSHIELD'' and ''Series/{{Daredevil|2015}}''.
141** Phase 3: The fallout of Phase 2's events and the build-up to the end of the Infinity Stones MythArc runs through ''Film/CaptainAmericaCivilWar'', ''Film/{{Doctor Strange|2016}}'', ''Film/GuardiansOfTheGalaxyVol2'', ''Film/SpiderManHomecoming''[[note]]Thanks to Sony finally ironing out a deal with Marvel Studios to develop their own Spider-Man series within the MCU while still retaining the rights[[/note]], ''Film/ThorRagnarok'' and ''Film/{{Black Panther|2018}}''. The big CrisisCrossover is split into two parts, ''Film/AvengersInfinityWar'' and ''Film/AvengersEndgame'', with ''Film/AntManAndTheWasp'' and ''Film/{{Captain Marvel|2019}}'' coming out in between them to set up various elements for the finale. Finally, ''Film/SpiderManFarFromHome'' is another DenouementEpisode.
142** Phase 4: A rebuilding period setting up a new Multiverse MythArc. 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. While some of the entries introduce the Multiverse and {{Alternate Timeline}}s (''Series/WandaVision'', ''Series/{{Loki|2021}}'', ''[[WesternAnimation/WhatIf2021 What If...?]]'', ''Film/SpiderManNoWayHome'', and ''Film/DoctorStrangeInTheMultiverseOfMadness''), most of the rest focus on the retirement or death of several veteran heroes and/or PassingTheTorch to {{Legacy Character}}s (''Film/SpiderManFarFromHome'' fits this despite technically being in Phase 3; and Phase 4 itself includes ''Series/TheFalconAndTheWinterSoldier'', ''Film/{{Black Widow|2021}}'', ''Series/{{Hawkeye|2021}}'', ''[[Series/MsMarvel2022 Ms. Marvel]]'', ''Film/ThorLoveAndThunder'', ''Series/SheHulkAttorneyAtLaw'', and ''Film/BlackPantherWakandaForever''). The few remaining feature origins for brand new heroes unconnected to the old ones (''Film/ShangChiAndTheLegendOfTheTenRings'', ''Film/{{Eternals}}'', ''Series/{{Moon Knight|2022}}'', and ''Film/{{Werewolf by Night|2022}}''), plus a couple of wacky side adventures of the Guardians (''WesternAnimation/IAmGroot'' and ''Film/TheGuardiansOfTheGalaxyHolidaySpecial'').
143** Phase 5: The current phase with its themes TBD, though it did launch with the full reveal of the MythArc BigBad in ''Film/AntManAndTheWaspQuantumania'' and will explore him further in a second season of ''Series/{{Loki|2021}}''. Other films and shows planned for this phase include ''Film/GuardiansOfTheGalaxyVol3'', ''Series/{{Secret Invasion|2023}}'', ''Film/{{The Marvels|2023}}'', ''Series/{{Echo|2024}}'', ''Ironheart'', ''Agatha All Along'', ''Daredevil: Born Again'', ''Film/DeadpoolAndWolverine'', ''Captain America: Brave New World'', and ''Thunderbolts''.
144** Phase 6 has also been announced to introduce the Fantastic Four and resolve the Multiverse MythArc with another ''Avengers'' duology, among other mostly-unknown films.
145* Creator/WarnerBros created the Franchise/DCExtendedUniverse for all their DC Comics properties, beginning with the initial standalone film ''Film/ManOfSteel''. ''Film/BatmanVSupermanDawnOfJustice'' followed it up as a crossover with Batman and an introduction to the larger DC mythology, with ComicBook/WonderWoman included as part of the story. ''[[Film/ZackSnydersJusticeLeague Justice League]]'' followed. However, due to WB executives getting cold feet at the reception to Creator/ZackSnyder's approach, the films coming after ''Justice League'' ended up largely standalone, with only a few appearances of superheroes in other superheroes' movies by the end in the 2022-2023 batch of films before the "DCU" ContinuityReboot.
146** Warner Bros. was actually [[WhatCouldHaveBeen supposed to launch]] their DC cinematic universe in 2011 with the release of ''Film/{{Green Lantern|2011}}'', but poor reception caused the movie to under-perform, and set the possibility of a shared universe back until their next attempt with 2013's ''Film/ManOfSteel'' which, despite its mixed reception, did better at the box office.
147** ''Film/Shazam2019'' also features a cameo by Ms. Glover from ''Film/LightsOut2016'' as the foster care counselor, thus putting that film into the DCEU as well.
148* Fox had already started something similar with their ''Film/XMenFilmSeries'' by creating more character-centric spinoffs, a job aided the huge background number of X-Men-affiliated characters. A series of movies centered on Wolverine (''Film/XMenOriginsWolverine'', ''Film/TheWolverine'', and ''Film/{{Logan}}'') was the start, followed up by ''Film/{{Deadpool|2016}}''. They went full-swing with the idea for a time, by channeling three separate ''X-Men'' sub-franchises: ''Film/Deadpool2'' in 2018, ''Film/DarkPhoenix'' in 2019 and ''Film/TheNewMutants'' in 2020, and each centered around different stories while being part of the same universe, but further plans ended up shelved due to the buyout of Fox by Disney and the future integration of the X-Men and other Mutants in the Marvel Cinematic Universe.
149** Similar to Warner Bros., Fox also had a WhatCouldHaveBeen example with their ''ComicBook/FantasticFour'' [[Film/FantasticFour2015 reboot]]. It was originally going to be set in the same universe as their ''X-Men'' films, but the dismal reception to said movie ended up destroying any hope of going forward with a sequel, or possible crossover, with the new Fantastic Four cast.
150* Sony attempted to do this with ''Film/TheAmazingSpiderManSeries'', though people have criticized ''Film/TheAmazingSpiderMan2'' for trying to do this too quickly at the expense of the quality of the film. The underperforming critical and commercial response to the movie led them to make deals with Marvel Studios to introduce Spider-Man into the MCU.
151** While Spider-Man was introduced to the Franchise/MarvelCinematicUniverse, Sony still is establishing a [[Film/SonysSpiderManUniverse shared universe with Spider-Man characters they own the film rights to]]. This universe so far includes ''Film/Venom2018'', it's sequel ''Film/VenomLetThereBeCarnage'', ''Film/Morbius2022'' and the upcoming movies ''Film/KravenTheHunter2024'' and ''Venom 3''. Sony also produced a ''Film/{{Madame Web|2024}}'' movie, which was seemingly meant to be set in it's own standalone universe, but any references to this in the official synopsis of the film was removed hsortly before it was released.
152* ''Film/{{Supergirl|1984}}'' takes place in the same continuity as ''Film/SupermanTheMovie'' and the remainder Creator/ChristopherReeve films. (Many mentions are made of Superman and Jimmy Olsen appears in the film.)
153* Over the years, Creator/QuentinTarantino's movies have developed into ''two'' relatively coherent 'Verses - the first being the main "Tarantino-verse" [[spoiler: which turns out to be an AlternateHistory where the Basterds killed Hitler in '44]] and the second the [[ShowWithinAShow films within that verse]]. It also seems be linked to his friend Creator/RobertRodriguez' world too, and include some of his favourite older movies.
154** ''Film/PulpFiction'' and ''Film/ReservoirDogs'' are the first link in that Vincent Vega and Mr. Blonde (Vic Vega) are brothers. Originally the connection was intended to be much stronger. In early drafts of the script, the briefcase Vincent and Jules retrieve contain the diamonds stolen in ''Film/ReservoirDogs''. Additionally, a prequel to both movies, set before Vic is sent to prison in which he visits Vince in Amsterdam, was in DevelopmentHell for years before Tarantino finally gave up because John Travolta and Michael Madsen had aged too much to convincingly play younger versions of themselves.
155** 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''. Cliff Booth from ''Film/OnceUponATimeInHollywood'' is the son of Aldo Raine from ''Inglourious Basterds'' (they're even played by [[Creator/BradPitt the same actor]]), while Rick Dalton starred in ''Coming Home in a Body Bag'', the Vietnam War film mentioned in ''True Romance'', directed by Lee Donowitz.
156** The "movies-within-movies" 'verse includes ''Film/KillBill'' (It's a reworking of the failed TV pilot ''Fox Force 5'' mentioned in ''Film/PulpFiction''. The actress playing The Bride is not just Uma Thurman, it's Uma Thurman as Mia Wallace.) Creator/SonnyChiba's appearance as a [[LegacyCharacter new Hanzo family member]] is an in-joke linking his ''Shadow Warriors'' series to ''Kill Bill''. The shared character of Earl [=McGraw=] links that to Film/FromDuskTillDawn and the Film/{{Grindhouse}} movies.
157** ''Film/AMillionWaysToDieInTheWest'' has Django cameo in a mid-credits scene, implying that it also takes place within the shared Tarantino-verse.
158* ''Franchise/{{Godzilla}}'': The Showa era of {{Kaiju}} films includes fifteen Godzilla movies, ''Film/{{Mothra}}'', ''Film/{{Rodan}}'', and the TV show ''Series/ZoneFighter'', and some fan theories incorporate Toho's productions ''Film/TheMysterians'', ''Film/{{Atragon}}'', ''Film/FrankensteinConquersTheWorld'', and ''Film/WarOfTheGargantuas'' to explain the presence of other monsters in some films, as well as technology like the Maser Cannons and A-Cycle Light Ray.
159** After the release of ''Film/Godzilla2014'' with Warner Bros. and the reveal that they were working on a ''King Kong'' reboot with Universal, Creator/LegendaryPictures announced that they were using the former to kickstart a kaiju-focused cinematic universe (known as the ''Film/MonsterVerse''). The ''Kong'' reboot, which [[ChannelHop changed distribution from Universal to Warner Bros.]] and is titled ''Film/KongSkullIsland'', established King Kong within the universe, followed by ''Film/GodzillaKingOfTheMonsters2019'' (which brought Mothra, Rodan, and King Ghidorah into the universe as well) and ''Film/GodzillaVsKong'', pitting Godzilla and Kong against each other.
160* This was implied with the appearance of an Franchise/{{Alien}} Skull in ''Film/Predator2'' 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.
161** A handful of background details could plausibly place the ''Blade Runner'' films [[https://www.denofgeek.com/movies/are-alien-and-blade-runner-set-in-the-same-universe/ in the Alien/Predator universe]].
162* According to WordOfGod, ''Film/{{Soldier}}'' is set in the same universe as ''Film/BladeRunner''. Whether SGT Todd came before, after, or at the same time as Roy Batty's little romp in Los Angeles is unclear, but it's a safe bet that Todd has also seen the TannhauserGate.
163* ''Film/ThisIsSpinalTap'' is most likely an actual documentary in the universe where ''Series/TheNanny'', ''Series/EverybodyLovesRaymond'', and ''Series/TheKingOfQueens'' takes place.
164* 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.
165* ''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.
166* The ''Franchise/HarryPotter'' series with its eight movies and seven novels is part of the planned prequel pentalogy of ''Film/FantasticBeasts'' and the sequel play ''Theatre/HarryPotterAndTheCursedChild'' (not to mention all the video games).
167* Easter eggs may set Creator/NeillBlomkamp's works in the same universe, namely ''Film/District9'', ''Film/{{Elysium}}'', and ''Film/{{Chappie}}''. The main link is the Tetravaal congolmerate. It's the main focus of ''Chappie'' as the manufacturer of the titular robot and all other robots in the film, but its brand also [[https://i.redd.it/riof4m3ufs221.png shows up]] in ''District 9'' and the aptly-named short ''Tetra Vaal''.
168* Creator/MNightShyamalan's ''Film/{{Unbreakable}}'' is set in the same universe as ''Film/{{Split}}'' and ''Film/Glass2019''.
169* Creator/RobertRodriguez has confirmed that two of his film series -- ''Film/{{Machete}}'' and ''Film/SpyKids'' -- share the same universe, solidified by the main character in the former making his debut in the latter. His later film ''Film/WeCanBeHeroes2020'' also has a character from ''Spy Kids 2'' appear (specifically Creator/ChristopherMcDonald reprising his role as President Amani), meaning that it (and, potentially by extension, ''Film/TheAdventuresOfSharkboyAndLavagirl'') likely also takes place in the same 'verse.
170* Film/TheConjuringUniverse is a group of interrelated horror films that started with ''Film/TheConjuring'', based on the purported cases of real-life paranormal investigators Ed and Lorraine Warren. It eventually explored other things, though they are still given a tangential connection with the Warrens.
171* The Franchise/TwistedChildhoodUniverse is an indie SlasherMovie horror film series created by Rhys Frake-Waterfield, revolving around PublicDomain characters reimagined as horror villains. ''Film/WinnieThePoohBloodAndHoney'' is the first installment of said franchise, with its [[Film/WinnieThePoohBloodAndHoney2 sequel]] teasing horror films based on ''Literature/{{Bambi}}'', ''Literature/PeterPan'', and ''Literature/{{Pinocchio}}''. All these films will eventually lead to a crossover film, ''Poohniverse: Monsters Assemble''.
172* The ''[[https://en.wikipedia.org/wiki/YRF_Spy_Universe YRF Spy Universe]]'' of UsefulNotes/{{Bollywood}} is a group of spy action-thriller movies featuring various fictional RAW Agents. It started with ''Film/EkThaTiger'' in 2012 and followed by a sequel titled ''Film/TigerZindaHai'' in 2017. ''Film/War2019'' was confirmed to be set in the same universe, although only one character appeared in both the ''Tiger'' movies and ''War''. The 2023 movie ''Film/{{Pathaan}}'' is explicitly stated to be in the same universe, with Col. Luthra from ''War'' being one of the main characters, Creator/SalmanKhan as Tiger having an extended CrossoverCameo, lots of [[ContinuityNod explicit references to the previous movies]] and a SequelHook, teasing Pathaan and Kabir (from ''War'') getting involved in the upcoming ''Tiger 3''.
173* UsefulNotes/{{Bollywood}} also has [[https://en.wikipedia.org/wiki/Cop_Universe Cop Universe]], starting from 2011's ''Film/{{Singham}}'', followed by a direct sequel ''Film/SinghamReturns'' and two more installments: ''Film/{{Simmba}}'' and ''Film/{{Sooryavanshi}}''.
174[[/folder]]
175
176[[folder:Literature]]
177* ''Literature/CthulhuMythos'': A famous and early example of this; professional fanfiction set in his world is not only published, but was also acknowledged and supported by Lovecraft before his death.
178** Originally the stories of ''Franchise/ConanTheBarbarian'' shared the same universe with the Cthulhu myths, since Robert E. Howard and Lovecraft were great friends, although currently, apparently for legal reasons, this is no longer possible.
179* The ''Literature/WildCards'' SuperHero books were designed as Shared Universe [[{{Anthology}} Anthologies]] from the ground up.
180* ''Literature/{{Bordertown}}'' is a city between the "real world" and Faerie. It was originally created by Terri Windling, but Emma Bull, Will Shetterly, Charles de Lint and several other writers have written stories set there.
181* ''Literature/SixteenThirtyTwo'' was originally to be a one-off novel, but due to favorable fan response went beyond that, later expanding into ''The Grantville Gazette'', one of whose main goals is to give previously unknown authors a way to be published, and paid for their work at professional rates instead of less generous fanzine ones. Unlike with many anthologies, the contributions from other authors affect the "main" story line works. There are very few aspects that are truly forbidden to these authors, primarily those where it would interfere with the prerogatives of Creator/EricFlint, the series creator.
182* ''Literature/ThievesWorld'' was a [[DarkerAndEdgier dark fantasy]] Shared Universe created by Creator/RobertAsprin in the late 1970s. It had contributors like Creator/PoulAnderson, Creator/JohnBrunner and Creator/MarionZimmerBradley and generated 12 anthlogies of short stories, seven official novels and a bunch of roleplaying adaptations before writing stopped in 1989, with a short revival in the early 2000's. It preemptively dealt with ContinuitySnarl with a preface framing story about an old timer talking to a new arrival in the city about how one should not believe everything in the stories one hears, as everyone spins the stories to fit their agendas, to make themselves sound more important in a good story, or less to blame in a bad one, and two people telling the same story may have wildly different variations.
183* ''Literature/UnwovenLiteraryUniverse'': ''Monarch One'', the HighSchoolAU of the Unwoven Fragment (read: sub-series) was fully integrated into the series starting with ''[[spoiler: Unwoven 2019]]''. The same book also confirmed that ''[[UsefulNotes/FurryFandom Anthropomorphized]]'' was set in the same universe as well.
184* The universe of the ''Literature/{{Bolo}}'' super-tanks, originally by Creator/KeithLaumer, has been shared by everyone from John Ringo to Mercedes Lackey.
185* The Russian ''Literature/DeathZone'' series is worked on by several known Russian sci-fi authors and is loosely based on the ''VideoGame/{{STALKER}}'' games. Unfortunately, this tends to create certain [[CanonDisContinuity lapses in continuity]]. For example, in Creator/AndreyLivadny's novels, the Order is portrayed as a rational group that believes in the existence of an otherdimentional point known as the Node based purely on empirical evidence. In RomanGlushkov's books, they are fanatics spouting religious nonsense about the Holy Node before sacrificing themselves for the cause. It could be explained that these are different members of the Order interpreting their teachings, if they were not using the same characters.
186** Other major differences involve the very nature of the Zones. For example, in Livadny's novels, there is no plant or animal life in the Zones, as anything exposed to the [[{{Nanomachines}} scorgs]] gets "upgraded" (i.e. it becomes a [[BodyHorror weird mix of flesh and metal]] bearing little resemblance to the original). ''Rust'' by Aleksey Kalugin shows the Moscow Zone full of plant and, occasionally, animal life with only a few examples of bio-tech mixes. Kalugin's nanobots (the word "scorgs" is never mentioned) only care about consuming metal and reanimating machines.
187* The ''Literature/{{Liavek}}'' anthology series- stories by several different authors, set in and around the city of Liavek. Apparently the setting started out as a RPG invented by Will Shetterly for his writer's group, The Scribblies; they later fleshed out the setting and produced five volumes of short stories (and a few poems). Two of the authors, Creator/JohnMFord and Creator/PamelaDean, later wrote more stories in the same universe.
188* The Midnight Rose collective, a group of British SF writers, published several shared-universe anthologies in the early 1990s, with settings including ''Literature/{{Temps}}'' (tongue-in-cheek superhero stories) and ''The Weerde'' (shape-shifting aliens are the source of all the world's myths and conspiracies). Contributors included Creator/StephenBaxter, Creator/NeilGaiman, Creator/MaryGentle, Creator/DavidLangford, Creator/KimNewman, and Creator/CharlesStross.
189* ''Literature/MerovingenNights'' was an anthology series set on the planet Merovingen, in an islolated corner of Creator/CJCherryh's ''Literature/AllianceUnion'' universe.
190* ''Heroes in Hell'' was an anthology series with a concept similar to ''Literature/{{Riverworld}}'': all the dead wind up together in Hell, where they pick up where they left off when still alive.
191* The universe of the ''Literature/MalazanBookOfTheFallen'' was jointly created by Creator/StevenErikson and Ian Cameron Esslemont, and both authors have written their own novels for the setting. This setting is home to:
192** ''The Literature/MalazanBookOfTheFallen'': Erikson. The main ten-novel sequence comprised of three major RotatingArcs that eventually converge into a central MythArc dealing with [[MadGod the Crippled God]].[[note]] ''Gardens of the Moon'', ''Deadhouse Gates'', ''Memories of Ice'', ''House of Chains'', ''Midnight Tides'', ''The Bonehunters'', ''Reaper's Gale'', ''Toll the Hounds'', ''Dust of Dreams'' and ''The Crippled God''[[/note]]
193** ''Tales from the Malazan Empire'': Esslemont. Six loosely-connected novels that deal with events not part of the ''Literature/MalazanBookOfTheFallen's'' major arcs, though they are very significant to the broader world and sometimes pick up lingering threads from the other series.[[note]]''Night of Knives'', ''Return of the Crimson Guard'', ''Stonewielder'', ''Orb, Scepter, Throne'', ''Blood and Bone'' and ''Assail''[[/note]]
194** ''The Tales of Bauchelain and Korbal Broach'': Erikson. A series of largely satirical novellas chronicling the misadventures of a pair of eccentric, homicidal necromancers and their put-upon manservant.[[note]]"Blood Follows", "The Lees of Laughter's End", "The Healthy Dead", "Crack'd Pot Trail", "The Wurms of Blearmouth" and "The Fiends of Nightmaria", collected in two omnibus editions[[/note]]
195** ''Literature/TheKharkanasTrilogy'': Erikson. A PrequelInTheLostAge trilogy primarily dealing with the [[OurElvesAreDifferent Tiste]] and the civil war that led them to become sundered into the [[DarkIsNotEvil Tiste Andii]], [[ProudWarriorRace Tiste Edur]] and [[LightIsNotGood Tiste Liosan]] peoples and led them to invading the main world of the series. [[note]]''Forge of Darkness'', ''Fall of Light'', and ''Walk in Shadow''(forthcoming)[[/note]]
196** ''The Path to Ascendancy'': Esslemont. {{Prequel}} series (initially a trilogy, later expanded to a projected six novels) chronicling the early adventures of Kellanved and Dancer and how they would eventually come to found the Malazan Empire. [[note]]''Dancer's Lament'', ''Deadhouse Landing,'' ''Kellanved's Reach'' and ''Forge of the High Mage''(forthcoming)[[/note]]
197** ''Witness Trilogy'': Erikson. SequelSeries to the ''Book of the Fallen'' picking up some time after it ends and focusing on the aftermath of its events, in particular the legacy of [[BarbarianHero Karsa Orlong]]. [[note]]''The God is Not Willing'' and ''No Life Forsaken'' (forthcoming)[[/note]]
198* The '80s ''Magic in Ithkar'' anthologies were more of a shared setting; all the stories started with the setting of Ithkar Fair, detailed in the anthology prologues, but other than that each author's stories were free-standing, sharing no characters, events, or settings beyond those established in the prologues. Most notably, one story ended with the Fair being shut down due to plague; this was not reflected in any of the others.
199* The ''Literature/SporeWikiFictionUniverse'' began life as a ''VideoGame/{{Spore}}'' fan fiction continuity but eventually separated itself. It's shared between multiple writers and is open to anyone willing to write for it.
200* Literature/GalacticCrucibles, which also originated as Spore fan fiction, is a shared SpaceOpera universe between numerous authors with a large focus on worldbuilding. Interestingly enough, it is implied to be part of the same multiverse as the Literature/SporeWikiFictionUniverse.
201* As well as ''Literature/TheInfernalDevices'' prequel series, ''Literature/TheMortalInstruments'' is said to be set in the same universe as the ''Literature/ModernFaerieTales'' by Creator/HollyBlack. Val and Luis from ''Literature/{{Valiant}}'' are the homeless kids Clary sees in the first book and Simon listens to Stepping Razor, Ellen's band from ''Literature/{{Tithe}}''.
202* The UrExample of a SharedUniverse book is Literature/TheBible, although it is chiefly notable as an object lesson in the importance of having an editor.
203* Rick Riordan's various mythology series ''Literature/TheCampHalfBloodSeries'' (actually [[Literature/PercyJacksonAndTheOlympians three]] [[Literature/TheHeroesOfOlympus different]] [[Literature/TheTrialsOfApollo series]]), ''Literature/TheKaneChronicles'', and ''Literature/MagnusChaseAndTheGodsOfAsgard'' all take place within the same universe, the ''Franchise/{{Riordanverse}}''. ''Literature/TheKaneChronicles'' contains several hints towards this end, culminating in [[Literature/DemigodsAndMagicians a crossover]]. [[Literature/MagnusChaseAndTheGodsOfAsgard Magnus Chase]] is actually [[Literature/TheCampHalfBloodSeries Annabeth Chase's]] cousin. This usually doesn't affect the series much, as by-and-large the various gods and mythologies avoid interaction in a sort of deliberate MutualMasquerade, but later books tend more and more towards inter-connectivity, with characters from one series showing up in another.
204** This is currently set to be averted with the 'Rick Riordan Presents' series of books, which while edited by Riordan and using similar themes will not be explicitly in the same universe, at least at the start.
205* Philip Jose Farmer's "Doc Savage" books have a number of other writers' fictional characters exist in the same continuum, using the device of a comet that struck a group of people leaving a party, resulting in their offspring becoming many famous characters from fiction. Since many of these creations were still covered by copyright at the time, one wonders how he got away with it!
206* As mentioned below in Multiple Media, the ''TabletopGame/DungeonsAndDragons'' setting ''TabletopGame/ForgottenRealms'' is notable for having over 70 novel series all set in the same world with minimal {{Continuity Snarl}}. The Other Wiki has a [[http://en.wikipedia.org/wiki/List_of_Forgotten_Realms_novels page]]
207* Creator/StephenKing is fairly notorious for this amongst fans of his work, with nearly all of his novels containing either major or minor references to each other and sharing the overall connection of ''Franchise/TheDarkTower'' series. It's recently further expanded to include references to the works of his son Creator/JoeHill.
208* ''Literature/IsaacsUniverse'' is a shared [[TheVerse setting]] created by Creator/IsaacAsimov in the 1990s, totaling five books. Three volumes were [[{{Anthology}} anthologies]] of short stories edited by Creator/MartinHGreenberg (contributing authors included Creator/PoulAnderson, Creator/DavidBrin, Creator/HalClement, Creator/GeorgeAlecEffinger, Creator/KarenHaber, Creator/JanetKagan, Creator/RebeccaOre, Creator/RobertSheckley, Creator/RobertSilverberg, Creator/AllenSteele, Creator/HarryTurtledove, and Creator/LawrenceWattEvans). The novels ''{{Literature/Fossil}}'' by Creator/HalClement and ''Literature/MurderAtTheGalacticWritersSociety'' by Creator/JanetAsimov are also set in the same setting.
209* Every Creator/BretEastonEllis book shares the same world, with old characters making appearances in later books. For example, in ''Literature/TheRulesOfAttraction'', one of the main characters is Sean Bateman; his brother, Patrick Bateman, has a chapter in the book and later became the main character in ''Literature/AmericanPsycho'', where Sean had a minor appearance. ''Story of My Life'' by Ellis's friend Jay [=McInerney=] is also set in this world, due to the appearance of the protagonist Alison Poole in ''Literature/{{Glamorama}}'' as Victor's girlfriend.
210* The anthology series ''Literature/TalesFromTheYearBetween'' sets each of its volumes in a new universe; each of its worlds is created from scratch by the contributors of that volume, and is then owned jointly by all contributors. Any one of the people who helped create the world is permitted to write their own work within it, with no need to go through the official volumes.
211* The short story "Literature/TimeAndTimeAgain" by Creator/HBeamPiper, in which the [[PeggySue 43-year-old Allan Hartley's mind is sent back in time to his 13-year-old self's body in 1945]], is set in the same universe as two later Piper works, "The Mercenaries" and "Day of the Moron". Both stories, which take place in 1965 and 1968 respectively, refer to President Blake Hartley, indicating that Allan's plan to get his father elected in 1960 was successful and an AlternateTimeline was created. In "Time and Time Again", Allan planned to raise capital for his father's campaigns by using his knowledge of future developments in chemistry to establish a company that will overshadow IG Farben. "The Mercenaries" reveals that Blake served as the President of the chemical company Associated Enterprises before his election but the real power lay with Allan. Kato Sugihara speculates that the same is true with respect to the government.
212* "Literature/HeWalkedAroundTheHorses" by Creator/HBeamPiper, in which Benjamin Bathurst slipped into an AlternateUniverse in which the American and French Revolutions never happened, is set in the same universe (or rather multiverse) as Piper's ''Literature/{{Paratime}}'' series. The first official ''Paratime'' story "Police Operation" features an implicit reference to the events of "He Walked Around the Horses", describing the situation but not mentioning Bathurst by name. In that story, Tortha Karf says, "I picked up a fellow on the Fourth Level, just about where you're operating, and dragged him a couple of hundred parayears. I went back to find him and return him to his own time-line, but before I could locate him, he'd been arrested by the local authorities as a suspicious character, and got himself shot trying to escape. I felt badly about that."
213* "Literature/FearStreet" by Creator/RLStine is an anthology of 100+ standalone novels - barring the occasional sequel or trilogy - that nonetheless all take place in the same town, allowing characters and locations will recur over multiple books. Some of the most fully realized characters never starred in their own book, but had minor appearances in enough books to make up for it.
214* Many of Creator/GabrielGarciaMarquez's works are set in or around the fictional city of Macondo, somewhere in Colombia.
215* ''Literature/FrostDancers'' is implied to be in a shared universe with a previous book called ''Literature/HuntersMoon1989''. In that book, foxes believe in a predator afterlife called the Perfect Here. In ''Frost Dancers'', it's said that the spirits of predators like stouts try to tempt recently deceased hares to go to Perfect Here with them. If hares go with them, they're forced to feed predators for all eternity.
216* The works of Creator/ArthurMachen are implied to all share a universe, though it's never made explicit, but rather hinted at by the recurring locales (Edwardian London or the English countryside— or both) and references to Mr. Dyson, his most recurring character who starred in multiple short stories and a novel.
217* Creator/GeorgeMacDonaldFraser's novels ''Black Ajax'' and ''Mr American'' explicitly take part in the same universe as his most famous creation, ''Literature/{{Flashman}}'', which in turn takes place in the same universe as ''Literature/TomBrownsSchooldays''. In addition, Flashman himself encounters Colonel Sebastian Moran (one of Literature/SherlockHolmes's adversaries) in ''Flashman and the Tiger'', resulting in an alternative perspective of "The Adventure of the Empty House" - implying that Holmes's cases take place in the same universe as Flashy's many misadventures. This gets more complicated when you factor in the Holmes continuation novel ''Literature/TheSevenPercentSolution'', in which Holmes and Watson encounter the hero of ''Literature/ThePrisonerOfZenda'' which is explicitly stated to be a work of fiction in the ''Literature/{{Flashman}}'' universe (the result of Flashy drunkenly retelling the events of ''Royal Flash'' to a journalist called [[Creator/AnthonyHope 'Hawkins']]).
218* ''Literature/TheChroniclesOfNarnia'': Thanks to a single throwaway line, we know that the series take place in the same universe as the Literature/SherlockHolmes stories. In ''Literature/TheMagiciansNephew'', which is chronologically the first story in the series, the narrator mentions that the events of the book were happening at the same time that Mr. Sherlock Holmes was still taking cases in Baker Street.
219* Initially, ''Literature/TheNeverMythos'' and ''Literature/TheKindnessOfDevils'' were two separate franchises that had no relation to one another short of a ShoutOut here and there. Eventually, the authors decided to combine both franchises into ''Literature/TheNeverkindSaga'', and various crossovers involving characters from both series' happen quite often.
220* ''Literature/WhateleyUniverse'': There are about a dozen authors writing about twice that many main characters. And that doesn't count the FanFic.
221* ''Literature/XanaduStoryverse'': The setting was designed for any author to write stories for, and most stories are written by different people. It's also common for other authors' stories to reference each other, although one of the setting's rules prohibits major events that other author would be obligated to include in order to limit constraints on new stories.
222* Almost all of the stories from Creator/PGWodehouse are implied to happen in the same universe: the same places or institutions (such as the Drones Club or Blandling Castle) are referenced in multiple books with different characters, and the main characters of a given book are often referenced or appear in a small role in others.
223* Creator/BrandonSanderson has a shared universe in which the majority of his books take place, known as ''Literature/TheCosmere''. While each series has wildly different magic systems, they all use very similar mechanics and as the series progresses, some more concrete rules that apply to all magic will become apparent. There are also very frequent character crossovers, most notably [[DimensionalTraveler Hoid]], a man key to the overarching story connecting every series.
224[[/folder]]
225
226[[folder:Live-Action TV]]
227* [[http://www.poobala.com/crossoverlist.html Poobala.com's Crossovers & Spinoffs]] has the most comprehensive list of television connections, featuring, among other things, ''39 shared television universes''. For example, Group 1 includes ''Series/AllInTheFamily'', ''Series/ArchieBunkersPlace'', ''Series/{{Blossom}}'', ''[[https://www.imdb.com/title/tt0081839/ Checking In]]'', ''Series/DiffrentStrokes'', ''[[https://www.imdb.com/title/tt0086704/ ER]]'', ''Series/TheFactsOfLife'', ''Series/TheFreshPrinceOfBelAir'', ''[[https://www.imdb.com/title/tt0083424/ Gloria]]'', ''Series/GoodTimes'', ''[[https://www.imdb.com/title/tt0078623/ Hello, Larry]]'', ''[[https://www.imdb.com/title/tt0112015/?ref_=fn_al_tt_2 In The House]]'', ''Series/TheJeffersons'', ''Series/{{Maude}}'', ''[[https://www.imdb.com/title/tt0103506/ Out All Night]]'', ''[[https://www.imdb.com/title/tt0108682/ 704 Hauser]]'' and ''Series/SilverSpoons''.
228* Creator/StephenColbert has confessed that, as far as he's concerned, ''Series/TheColbertReport'' shares a universe with ''Series/StrangersWithCandy''. In fact, Tim Meadow's black Republican character, [[http://thecolbertreport.cc.com/videos/ypv3hz/p-k--winsome---black-republican P.K. Winsome]], is the exact same character as Tim Meadow's opportunistic grief councilor Percy Kittens from ''Series/StrangersWithCandy''.
229* The "Series/ToeiUniverse" centered around several properties owned by Toei Company. Sort of. As it seems the shared continuity between shows (even from the same franchise) gets retconned with frequency. To make a recap:
230** ''Franchise/KamenRider'': The Showa-era shows all exist in the same universe as evidenced by the presence of a common enemy called "[[BigBad The Great Leader]]", who is eventually revealed to have been the leader of all the evil organizations the Riders faced throughout the 70s. At the start of the Heisei era, ''Series/KamenRiderAgito'' has hints of being in the same universe as its predecessor ''Series/KamenRiderKuuga'', but the producers pointedly avoided making it a direct sequel to prevent ContinuityLockout. ''Series/KamenRiderDecade'' in 2009 seemingly ended with the ''Rider'' shows being merged into a single universe, with past Riders showing up to help out if a crisis gets too big for the current guy to handle; specifically, the Movie Wars series {{Crossover}} films links every series from ''Decade'' onwards in a single universe by having the current Rider and his immediate predecessor (and sometimes others, depending on which actors are willing to return) join forces. There's also the additional element of Foundation X, a sinister organization first established in ''Series/KamenRiderDouble'' as funding the research of various power sources and occasionally serving as villains (most commonly in ''Movie Wars''); it seems the intent was that they would be the Heisei-era equivalent of the Great Leader, but this concept was mostly done away with following ''Series/KamenRiderFourze''.
231*** ''Series/KamenRiderBuild'' is the first modern-era show not to be a part of the "Decade universe", because its backstory (in 2007, Japan was split into three separate countries by the sudden appearance of mysterious "Skywalls") is completely incompatible with any other Rider series. In order for the requisite Movie Wars crossover with ''Series/KamenRiderExAid'' to even take place, the plot had to involve reality-warping shenanigans.
232*** Subverted, Deconstructed and Defied by ''Series/KamenRiderZiO''. The Heisei riders are from 20 incompatible worlds that the show's BigBad merged together as part of an evil plan to RetGone them all and take their powers for himself and rule over his own world. Similarly, the villain of the movie makes it his business to erase the inconsistencies of the Heisei Era by replacing it with a newer, more coherent version with himself and his minions as the protagonists. [[spoiler: Although Sougo defeats both handily, he still separates the worlds, as the merging has progressed to the point where paradoxes are theartening to destroy them.]] EndOfAnEra indeed.
233*** Archaia's graphic novel adaptation of ''Manga/Cyborg009'' got into the mix by revealing that Foundation X was one of the financial backers of Black Ghost, the organization that created the Double-0 Cyborgs. The company had plans to develop this into a Shared Universe for all of Creator/ShotaroIshinomori's works (they also referenced ''Manga/SkullMan'' and said they would have done a ''Series/{{Kikaider}}'' series next), but plans fell through because Archaia and Ishinomori Productions couldn't agree on the direction of the series.
234** ''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. Other exceptions include the spin-off shows ''Series/HikoninSentaiAkibaranger'' and ''Series/TheHighSchoolHeroes'' which both take place in universes where the other Super Sentai series are [[ShowWithinAShow shows within the show]], though it isn't made clear if they are in the same or different universes.
235*** 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'' is a sequel to ''Zenkaiger'' but how the two shows are connected is currently unclear because Kaito from ''Zenkaiger'' is a supporting character in ''Donbrothers'', but has an entirely different personality, although episode 26 implies that he remembers the events of ''Zenkaiger'', hinting that it is an alternate timeline. 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'', yet Donbrothers also shares a universe with ''Series/KamenRiderDenO''. This also is supported by the film ''Film/NinpuuSentaiHurricaneger10YearsAfter'' which is a sequel to ''Hurricaneger'' but takes place in an alternate continuity that ignores all of the events that happened to the ''Hurricaneger'' characters in crossovers following the show, so it takes place in the ''Hurricaneger'' universe, but not the main universe. Then, however, the following series, ''Series/OhsamaSentaiKingOhger'', at first seems like it diverges even further by taking place in a world very different than ours which resembles a MedievalEuropeanFantasy... Before it's revealed to be a StealthSequel to ''Series/ZyudenSentaiKyoryuger''.
236* [[Franchise/SuperSentai Like the shows they are adapted from]], the various seasons of ''Franchise/PowerRangers'' are shown to exist in the same Universe. This was most obvious in the early years of the series, which had one, continuing storyline culminating in ''Series/PowerRangersInSpace''. Later seasons tend to downplay this, but the various crossovers and reappearing characters establish that the universe is the same. However, ''Series/PowerRangersRPM'' and takes place in an AlternateUniverse, something not made obvious until its crossover with ''Series/PowerRangersSamurai''. ''Series/PowerRangersDinoCharge'' is also confirmed to take place in an AlternateUniverse in the ''Series/PowerRangersNinjaSteel'' MilestoneCelebration episode ''Dimensions in Danger''. That episode also states that Rangers from the main timeline have developed and distributed transportal devices to cross dimensions in case of emergency. It's stated that overusing them can destabilize the Morphin' Grid, but considering ''Ninja Steel'' ended with the team using one to attend a Christmas party in the ''Dino Charge'' world, it's safe to say that any future crossovers won't be too difficult.
237* ''Series/{{JAG}}'', ''First Monday'', ''Series/{{NCIS}}'', ''Series/NCISLosAngeles'', ''Series/NCISNewOrleans'', the new ''Series/HawaiiFive0'' and ''Series/MagnumPI2018'' are a shared world, as evidenced by Kensi's presence in Hawaii, and later Sam and Callen's trip to Hawaii, followed by Chin Ho and Danno's visit to Los Angeles, as well as Magnum's team working a case with the 5-0 Task Force. And now it's further established that ''Series/{{Scorpion}}'' is now part of this verse, thanks to the Scorpion team's visit with Hetty. ''Series/{{Macgyver 2016}}'' is now a part of that universe, after the Five-0 team referenced a phone call from the Phoenix Foundation.
238* The Creator/{{Filmways}}-produced ''Series/PetticoatJunction'' and ''Series/GreenAcres'' were both set in the town of Hooterville, and characters from each gravitated to the other fairly regularly.
239** Also frequent crossovers with ''Series/TheBeverlyHillbillies'' (which was also a Filmways preezentayshun).
240* "The Girls Of Hollywood High," the second of ''two'' {{Poorly Disguised Pilot}}s (for a proposed series about Texan private detectives called ''[[{{Pun}} 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.
241* Most of the series produced by Jack Webb take place in the same universe, including ''Franchise/{{Dragnet}}'', ''Series/Adam12'', ''Series/{{Emergency}}'' and the short-lived Robert Conrad vehicle, ''The D.A.''
242* ''Series/MagnumPI'' had two crossover stories that concluded on ''Series/SimonAndSimon'' and ''Series/MurderSheWrote''.
243** ''Simon & Simon'' also had meetings with ''Series/WhizKids''.
244** ''Series/MurderSheWrote'' also shares a universe with an obscure 1949 film-noir called ''Strange Bargain''; 40 years after the movie, Jessica Fletcher helped uncover the real killer from the original movie.
245* ''Series/DiffrentStrokes'', ''Series/TheFactsOfLife'' and ''Hello, Larry''.
246* ''Series/DiagnosisMurder'' shares a universe with ''Series/{{Matlock}}'' (Matlock defended Dr. Jesse Travis in a murder case), ''Series/{{Mannix}}''[[note]]due to the ''Diagnosis: Murder'' episode "Hardboiled Murder" being both a SequelEpisode to ''Mannix'''s unintended SeriesFinale "Little Girl Lost" and a FullyAbsorbedFinale to ''Series/{{Mannix}}''[[/note]] and ''Series/MissionImpossible'' (due to an appearance by Barbara Bain as Cinnamon Carter).
247* ''Series/BarnabyJones'' shares a universe with ''Series/{{Cannon}}'', as shown in the former's pilot episode (Cannon is friends with Barnaby's soon-to-be-murdered son).
248* The Franchise/{{Whoniverse}}, consisting of Parent Show ''Series/DoctorWho'' and its spin-offs ''Series/K9AndCompany'', ''Series/TheSarahJaneAdventures'', ''Series/{{Torchwood}}'', ''Series/TorchwoodChildrenOfEarth'', ''Series/TorchwoodMiracleDay'', and ''Series/Class2016'', and (at least the quasi canon parts of) ''AudioPlay/BigFinishDoctorWho'' and ''Series/{{K9}}''.
249* ''Series/BuffyTheVampireSlayer'' and SpinOff series ''Series/{{Angel}}'' shared a universe, albeit with only a few cross-overs. The canon was thoroughly welded back together in the sequel comics.
250* ''Series/OnceUponATime'' got a SpinOff in ''Series/OnceUponATimeInWonderland''. Given that Wonderland starred a protagonist from Victorian England (Alice), whereas Storybrooke had a protagonist from modern-day [[BigAppleSauce NewYork]], it was up in the air how connected the two series would be. However, the writers decided to pull a big ol' TimeyWimeyBall and have major characters interacting with one another across the two series and times. The Knave of Hearts from Wonderland is first seen breaking into Granny's diner in Storybrooke before somehow going to Victorian England to convince Alice to break out of the insane asylum she's being kept in. Then in the third episode, he's shown as one of Robin Hood's (a significant character in the third season of OUAT) Merry Men.
251** Actually it's not Time Travel. Alice, like Cruella De Vil, comes from a land where it is just perpetually Victorian England. We learn in the 4th season that some lands of storytelling are just stilted in certain periods, where the inhabitants aren't aware of the year. That being said, ''Once Upon a Time'' is just one big shared universe between live action Disney, literature, and fairytale pieces.
252** One episode of ''Series/OnceUponATimeInWonderland'' included the Sarlacc in a list of monsters, implying that its cosmology might also feature events that happened [[Franchise/StarWars a long time ago, in a galaxy far, far away]]...
253* Creator/NBCUniversal has their own universe based on series they produced, established by the Cloud 9 store from ''Series/{{Superstore}}'' making cameo appearances in ''Series/TheMindyProject'', ''Series/GoodGirls'', ''I Feel Bad'' and ''Series/{{Kenan}}''.
254* Most of NBC's 90's sitcoms were clearly supposed to take place in a shared universe from the network:
255** ''Series/{{Cheers}}'' had one direct and well known spin-off in the form of ''Series/{{Frasier}}'', but both shows also shared the same universe with ''Series/{{Wings}}'', which was created by former ''Cheers'' showrunners David Angell, Peter Casey and David Lee, who would subsequently go on to create ''Frasier''. While several ''Cheers'' characters appeared in both ''Wings'' and ''Frasier'', there were never any cross-overs between the latter two shows; there was a plan to have ''Wings'' character Antonio in the first season of ''Frasier'', but it was canned after actor Creator/TonyShalhoub refused to go along with it, and while he did appear in an episode of Frasier, it was as a different character.
256** The "Blackout Thursday" stunt began with the characters from ''Series/MadAboutYou'' causing a city wide blackout that affected ''Series/{{Friends}}'' and ''Madman of the People''.
257** ''Friends'' had two crossovers with ''Series/CarolineInTheCity'', with the title character appearing in an episode of ''Friends'' while on the same night Chandler Bing appeared in an episode of ''Caroline in the City''. Ross Geller also appeared in an episode of ''The Single Guy'' while an episode of ''Hope & Gloria'' had the title characters meet Phoebe.
258** ''Caroline in the City'' also had a crossover with ''The Single Guy'', with Jonathan Elliot appearing in the same episode as Chandler Bing from ''Friends''. Meanwhile there were some implications that is shared a setting with ''Frasier''.
259** ''Mad About You'' at first appeared to share the same world as ''Series/{{Seinfeld}}'', but later episodes would establish both shows as being fictional in the other's world.
260** ''Series/CarolineInTheCity'' also crossed over with ''Friends'', with Chandler appearing in the former show and Caroline in the latter. As Niles and Daphne also made an appearance in one episode of ''Caroline'', which subsequently connects the above shows with each other.
261* Maxine and Kyle from ''Series/LivingSingle'' appear in an episode of the UPN sitcom ''Half & Half'', at that point having been married with a child.
262* The Series/{{Arrowverse}}, a FanNickname for a shared universe between a series of DC shows on Creator/TheCW (officially, it's "The [=CWverse=]"). The franchise started with ''Series/{{Arrow}}'' and has produced a total of four sister series: ''Series/{{The Flash|2014}}'', ''Series/LegendsOfTomorrow'', ''Series/{{Batwoman|2019}}'', and ''Series/SupermanAndLois''. The 'verse has also expanded to include short web animation series ''WesternAnimation/{{Vixen}}'' (set in the main 'verse) and ''WesternAnimation/FreedomFightersTheRay'' (set in an alternate universe). ''Series/{{Supergirl|2015}}'', which was originally aired on sister channel Creator/{{CBS}}, was crossed over with ''The Flash'' in an episode of the first season and eventually [[ChannelHop hopped to The CW, and by extension Arrowverse, for good]] when CBS decided not to renew the series. All shows crossover frequently; outside of individual episodes, there's been an annual crossover event since 2014 which sees most of the characters team up to battle a shared threat.
263** ''Series/{{Constantine}}'' was originally an unrelated show (it being aired on Creator/{{NBC}}) but was retroactively added to the Arrowverse after the series was cancelled. The titular character guest starred in an ''Arrow'' episode that aired after his show ended, but negotiations for further appearances dragged on for two years before he finally made his proper appearance in Season 3 of ''Legends of Tomorrow''. Constantine would become a cast member of ''Legends'' starting with Season 4.
264** The 1990 iteration of ''Series/{{The Flash|1990}}'', which aired on CBS, was also made a part of the multiverse retroactively when Creator/JohnWesleyShipp's Barry Allen appeared in Season 5 of ''The Flash''. Shipp has previously been part of the recurring cast of the 2014 series since the beginning, but he plays different characters.
265** ''Series/{{Black Lightning|2018}}'' notably did ''not'' start out as part of the Arrowverse, even though it is a DC show, shares the same executive producer, and is aired on The CW. WordOfGod said that the show was never developed as an Arrowverse series in mind, since coordinating its production would have been a nightmare (it is filmed in Atlanta, while the Arrowverse is filmed in Vancouver). This changes with ''Series/{{Crisis on Infinite Earths|2019}}'', however - not only does Jefferson Pierce make his crossover debut, but it ends with the main CW shows becoming a MergedReality.
266* ''Series/SesameStreet'' and ''Series/TheMuppetShow''. ''Film/AMuppetFamilyChristmas'' also had characters from ''Series/FraggleRock'' appear. [[Series/MisterRogersNeighborhood Mr. Rogers]] appeared in an episode with Big Bird and vice versa.
267* [[Film/ThisIsSpinalTap Bobbie Fleckman]], was the manager of the band that was making a music video in Maxwell Sheffield's house where Fran Fine was living/working as ''Series/TheNanny''. Fran went to high school with [[Series/EverybodyLovesRaymond Frank Barone]], who was friends with Doug Heffernan before he moved to [[Series/TheKingOfQueens Queens, New York]].
268* One episode of ''Series/MakeRoomForDaddy'' was a PoorlyDisguisedPilot for ''Series/TheAndyGriffithShow'', which led to ''Series/GomerPyleUSMC'' and ''Series/MayberryRFD''.
269* Since Alan Brady of ''Series/TheDickVanDykeShow'' had a cameo on ''Series/MadAboutYou'', ''Series/TheDickVanDykeShow'' is also part of that universe.
270* Joked about InUniverse on ''Series/MysteryScienceTheater3000'' The bots spin an elbaroate yarn about how there is an entire ''Film/CarnivalMagic'' universe comprised of prequels, sequels, spin-offs and a reboot. Hilariously, Jonah [[SuperGullible actually believes them]].
271* ''Franchise/LawAndOrder'':
272** For the record, the official entries in the franchise are ''Series/LawAndOrder'', ''Series/LawAndOrderSpecialVictimsUnit'', ''Series/LawAndOrderCriminalIntent'', ''Series/LawAndOrderTrialByJury'', ''Series/{{Conviction}}'', and ''Series/LawAndOrderLA''.
273** ''Series/LawAndOrder'' had a few episodes crossover with ''Series/HomicideLifeOnTheStreet''. After ''Homicide'' was cancelled, ''Series/LawAndOrderSpecialVictimsUnit'' was spun off from both shows (due to the presence of Capt. Donald Cragen and JustForFun/JohnMunch).
274*** John Munch also appears in ''Series/ArrestedDevelopment'', ''Series/TheXFiles'', The Beat, ''Series/TheWire'', mentioned in the UK show ''Luther'', and the comic book Spider-man/Deadpool #6.
275** An episode of ''Series/LawAndOrderCriminalIntent'' had a [[CrossoverCameo brief appearance]] by Creator/MaryMcCormack as Mary Shannon, establishing ''Series/InPlainSight'' takes place in the same universe.
276** In TheNewTens, it became established that the franchise takes place in the same universe as Creator/{{NBC}}'s ''Series/OneChicago'' franchise (''Series/ChicagoFire'', ''Series/ChicagoPD'', ''Series/ChicagoMed'', and ''Series/ChicagoJustice''). Peter Stone from ''Chicago Justice'' is the son of Ben Stone from ''Law And Order''.
277** Of the above, the ''Chicago'' shows have been noted for how seamlessly they connect. Quite often, actors from one cross over into the other from the cops of ''PD'' showing up to help the firefighters to both sides ending up at the ''Med'' hospital to check on a victim. There are even relationships across the show such as how ''Fire's'' Mouch is married to ''PD's'' Trudy while ''PD's'' Jay and ''Med's'' Will are brothers.
278** As of the end of Season 2, ''Series/{{FBI}}'' and ''Series/FBIMostWanted'' are part of the extended Creator/DickWolf 'verse, with ''PD's'' Det. Upton working with ''FBI'' Agent OA.
279* {{Freeze Frame Bonus}}es and WordOfGod have heavily hinted, if not confirmed, that ''Series/TheOfficeUS'', ''Series/ParksAndRecreation'', and ''Series/TheGoodPlace'' are in the same universe.
280* ''Series/FrankieDrakeMysteries'' and ''Series/RepublicOfDoyle'' have a linked universe through the guest appearances of characters from ''Series/MurdochMysteries'' in both shows.
281* ''Series/StargateSG1'' acted as a continuation of the film ''Film/{{Stargate}}'', and the series ''Series/StargateAtlantis'' expanded the universe to a new galaxy with a new cast. Later, ''Series/StargateUniverse'' would expand the mythology of the Stargate series even further.
282* Every ''Franchise/StarTrek'' series and spinoff is in the same universe, and the biggest change in continuity was the new timeline introduced in ''Film/StarTrek2009''.
283* Shonda Rimes has a couple of these now. ''Series/GreysAnatomy'' exists in the same universe with spinoffs ''Series/PrivatePractice'' and ''Series/Station19''. Sort-of with ''Series/{{Scandal}}'' and ''Series/HowToGetAwayWithMurder''. The OC is also implied to be in the same universe as Summer's dad gets a job at Seattle Grace in one episode.
284* ''Franchise/UltraSeries'' has expanded a Multiverse and lore of the franchise on multiple instances:
285** The Nebula M78 Timeline, where the first eight Showa Era series such as ''Series/UltraQ'', ''Series/{{Ultraman}}'', ''Series/UltraSeven'', ''Series/ReturnOfUltraman'' (a.k.a Ultraman Jack), ''Series/UltramanAce'', ''Series/UltramanTaro'', ''Series/UltramanLeo'' and ''Series/UltramanEighty'', the Heisei era only show ''Series/UltramanMebius'', the ''Franchise/UltramanZero'' trilogy films (With Zero being the son of Ultraseven acting as a DimensionalTraveler and GuardianOfTheMultiverse) along with the spin-offs ''Andro Melos'' and ''Series/UltraGalaxyMegaMonsterBattle'' are part of the same timeline. ''Series/UltramanMax'' and ''Series/UltramanNeos'' are both {{Alternate Universe}}s of the M78 timeline (as boths {{Expy}}s of Seven And Ultraman) with both Max and Neos both making cameos in ''Film/MegaMonsterBattleUltraGalaxyLegends'' and ''Film/UltramanZeroTheRevengeOfBelial'' along with Ultraman Great from ''Series/UltramanTowardsTheFuture'', Ultraman Powerered from ''Series/UltramanTheUltimateHero'' Ultraman Scott, Ultraman Chuck and Ultrawoman Beth from ''Anime/UltramanTheAdventureBegins'' are both non-Japanese series of the franchise.
286** The Heisei era shows such as ''Series/UltramanTiga'' and it's Timeskip Sequel ''Series/UltramanDyna'' both share their universe together referred as the "Neo Frontier Space Timeline", ''Series/UltramanGinga'' and it's direct sequel ''Ginga S'' (Ultraman Victory's debut) also had it's respective timeline, ''Series/UltramanOrb'' and ''Series/UltramanRB'' also both shares their respective universe as both their main Ultras are natives of Planet O-50 while the other Heisei era series take their standalone universes of it's own such as ''Series/UltramanGaia'', ''Series/UltramanCosmos'', ''Series/UltramanX'' and ''Series/UltramanGeed''.
287** ''Series/UltramanNexus'' and it's prequel film ''Film/UltramanTheNext'' were supposed to be a reboot to the franchise with DarkerAndEdgier tone intended for the older audiences but it got scrapped due to combination of ScrewedByTheNetwork and MisaimedMarketing.
288* The Creator/{{ABC}} [[SoapOpera soap operas]] ''Series/{{Loving}}'', ''Series/AllMyChildren'', ''Series/OneLifeToLive'', and ''Series/GeneralHospital''. Several noteworthy [[CrossOver crossovers]] frequently happened between the first three shows (in particular in the early '90's between ''Loving'' and ''All My Children'', and in the mid-2000's between ''All My Children'' and ''One Life To Live''), as they were all created by Agnes Nixon, set in small towns in Pennsylvania, but filmed in New York City. Although ''General Hospital'' didn't participate as often--it was filmed in UsefulNotes/LosAngeles and set in upstate New York--several scenes and storylines made it clear that it was included.
289* The Creator/{{CBS}} [[SoapOpera soaps]] ''Series/TheYoungAndTheRestless'' and ''Series/TheBoldAndTheBeautiful'' have had numerous characters repeatedly crossing over from one to the other, most famously Y&R's resident psychopath Sheila Carter, who wreaked havoc on ''both'' shows. The now defunct soaps ''Series/AsTheWorldTurns'' and ''Series/GuidingLight'' never participated, but Y&R's Michael Baldwin appeared on both, making it clear they were included.
290* The Australian/American drama ''Series/PineGap'' features the American aircraft carrier USS Bartlett, which seems to indicate that it is set in the same universe as ''Series/TheWestWing'', in which a President Bartlett played a prominent role.
291* Franchise/TheVampireDiariesUniverse, consisting of ''Series/TheVampireDiaries'' and its spin-offs, ''Series/TheOriginals'' and ''Series/{{Legacies}}''. The first two actually aired concurrently from 2013 to 2017.
292* ''Series/TheInsideMan'', an EdutainmentShow about IT security, possibly has one with ''Restricted Intelligence'', another program by the same company about [=HIPPA=] training, as both feature the BlandNameProduct [=SnapPenguins=], a parody of [=SnapChat=].
293[[/folder]]
294
295[[folder:Multiple Media]]
296* OlderThanSteam: Perhaps the oldest non-mythology example is the ''Jianghu'' (literally "rivers and lakes") fantasy world in which most Chinese {{wuxia}} books, films, TV series, etc. are set. Jianghu dates at least to the 14th-century novel ''Literature/WaterMargin''.
297* Each ''TabletopGame/DungeonsAndDragons'' campaign setting is its own [[TheVerse 'Verse]] (See the page on D&D for more information), and the associated novels have many different authors, though - like the ''Franchise/StarWarsExpandedUniverse'' - the writers usually have to clear their ideas through the universe's owner.
298** ''Dungeons & Dragons'' also has all of the settings linked in ''TabletopGame/{{Planescape}}'' and ''TabletopGame/{{Spelljammer}}'', but those are rarely mentioned as existing except for their own continuities.
299*** Given that [[TabletopGame/D20Modern Urban Arcana]] is our Earth, [[TheMasquerade only with hidden fantasy elements]], the Earth that Forgotten Realms canonically is connected to[[note]]And ''hilariously'' so: among other things, the first edition of the Forgotten Realms Campaign Setting was canonically written with the help of Elminster[[/note]] is probably that Earth. Planescape, at least, has a connection to Urban Arcana via a shared character that namedrops Sigil and has a way to traverse the Shadow that otherwise acts as a boundary between Urban Arcana and the rest of the multiverse.
300* The ''TabletopGame/Warhammer40000'' universe is shared by a large number of writers; the sheer scale of the setting in both space and time helps avoid continuity problems.
301** In early versions of the background, it was heavily hinted that the ''Warhammer Fantasy'' world was part of a planet cut off from the rest of the universe by warp storms, explaining the many shared elements. However, mentioning this nowadays is liable to get you bundled into a van and never seen again.
302* WordOfGod places ''WebVideo/DoctorHorriblesSingAlongBlog'', ''WesternAnimation/TheTick'' and the ''[[WesternAnimation/TheVentureBrothers Venture Brothers]]'' in the same universe.
303** The [[Creator/MutantEnemy Edlundverse]] perhaps?
304* Literature/SpellsRUs was started off with Bill Hart's story A Strangeness at the Frat House and then became not so much a universe but a single series of the same character in the same [[TheLittleShopThatWasntThereYesterday errant shop]] all ending up with customers being transformed into something.
305* The Franchise/TransformersAlignedUniverse encompasses ''Literature/TransformersExodus'', ''Literature/TransformersExiles'', ''Transformers: Retribution'', ''WesternAnimation/TransformersPrime'', ''WesternAnimation/TransformersRescueBots'', ''WesternAnimation/TransformersRobotsInDisguise2015'', ''VideoGame/TransformersWarForCybertron'' (and ''[[VideoGame/TransformersFallOfCybertron Fall Of Cybertron]]''), and ''VideoGame/TransformersUniverse''.
306* ''VideoGame/{{Gradius}}'', ''VideoGame/{{Parodius}}'', and a few other ShootEmUp games from ''Creator/{{Konami}}'' all exist in the ''TabletopGame/YuGiOh'' card game universe [[http://yugioh.wikia.com/wiki/Konami_Arcade_Games as shown here]]. They also exist [[ShowWithinAShow as games within the anime,]] as shown in an episode of ''Anime/YugiohGX''.
307* ''Series/TheOfficeUK'' takes places in the same universe as ''Series/TheOfficeUS'', a series of Website/YouTube videos called "Learn Guitar with David Brent," and the film ''Film/DavidBrentLifeOnTheRoad''. They are linked by the character David Brent, who appears in all of them.
308* Creator/MajesticBlueStudios has these universes:
309** The Jiltedverse, given by WordOfGod as the name of ''DarthWiki/TheJiltedOnes''.
310** The Franchise/{{ColorWorld Universe}}, which consists of ''Webcomic/TheDynamiteTwinsAndFriends'', ''Webcomic/BunnyAndBear'', ''Literature/SpacePirateCaptainMacTaggart'', ''Literature/BloodyCutlass'', among others.
311*** They both encompass webcomics, comic books, film, music, and more. And they're all connected to one another.
312* A few Nickelodeon sitcoms happen to share the same universe and some of which are from Creator/DanSchneider. Nicknamed the ''Schneider-verse'', it consists of ''Series/TheAdventuresOfPeteAndPete'', ''Series/TheSecretWorldOfAlexMack'', ''WesternAnimation/SpongebobSquarepants'', ''Series/DrakeAndJosh'', ''Series/{{Unfabulous}}'', ''Series/NedsDeclassifiedSchoolSurvivalGuide'', ''Series/{{Zoey101}}'', ''Series/{{iCarly}}'', ''Series/{{Victorious}}'', ''Series/SamAndCat'' and ''Series/{{iCarly2021}}''.
313** The universe may also include other shows that aren't Nickelodeon such as ''Series/FraggleRock'', ''Series/PairOfKings'', ''WesternAnimation/{{WITCH}}'', ''Series/BlackHoleHigh'', ''Series/Flight29Down'', ''Series/ScoutsSafari'', ''Series/DarcysWildLife'', ''WesternAnimation/{{Detentionaire}}'', ''WesternAnimation/DanVs'', ''WesternAnimation/TransformersPrime'', ''Series/RLStinesTheHauntingHourTheSeries'', ''WesternAnimation/GreenLanternTheAnimatedSeries'' and the recent two revival seasons of ''Series/AreYouAfraidOfTheDark''.
314** At first it seemed like ''Series/HenryDanger'' and ''Series/GameShakers'' were a part of this universe until the latter had an episode where the characters marathon ''iCarly'' and bet with each other who Freddie loved - Sam or Carly - with Nathan Kress appearing as himself.
315** Potential movies that supposedly take place in the ''Schneider-verse'' along with all the numerous shows are ''WesternAnimation/TheIncredibles'', ''Film/ReservoirDogs'', ''Film/TrueRomance'', ''Film/PulpFiction'', ''Film/TheAdventuresOfSharkboyAndLavagirl'', ''Film/TrickrTreat'', ''Film/TheSpiderwickChronicles'', ''Film/{{Krampus}}'', ''Film/DemonKnight'', ''Film/InglouriousBasterds'', ''Film/LightsOut2016'', ''Film/Shazam2019'', ''Film/JurassicPark'', ''Film/TheLostWorldJurassicPark'' and ''Film/JurassicParkIII''.
316* {{Music/Gorillaz}} shares a universe with ''WesternAnimation/ThePowerpuffGirls1998'' of all things, due to Ace of the Gangreen Gang temporarily replacing the band's bassist Murdoc. They also seem to share a universe with a version of ''Franchise/XMen'', as drummer Russel Hobbs was kicked out of the [[LawyerFriendlyCameo Xavier School for Young Achievers]] after being possessed by a demon--which would not be a first for that institute.
317* Creator/MarvelComics takes the stance that ''every'' spinoff, adaptation, and what-have-you of their properties takes place ''somewhere'' in a shared multiverse. This is mostly seen with ''Spider-Man'' these days, as ''Film/SpiderManNoWayHome'' brought together characters from three film continuities (and referenced a fourth), while the main selling point of the ''ComicBook/SpiderVerse'' comic event and ''WesternAnimation/SpiderManSpiderVerse'' film series is "this includes every Spider-Man you've ever heard of, some you haven't, and some new ones we just made up".
318[[/folder]]
319
320[[folder:Radio]]
321* ''Radio/TheGreenHornet'' was said to be ''Radio/TheLoneRanger'''s nephew.
322[[/folder]]
323
324[[folder:Tabletop Games]]
325* Subverted by ''TabletopGame/WarhammerFantasy'' and ''TabletopGame/Warhammer40000''; they were long rumored to exist within the same universe and galaxy, Fantasy's planet being a single planet existing outside the scope of the galactic warfare of the wider galaxy of the 40k setting. A common theory was that [[BarbarianHero Sigmar]], founder of the Empire in Warhammer Fantasy and somewhat of a demigod was a Primarch, one of the God-Emperor of Mankind's genetic sons who was somehow lost on the planet. This theory had hints going for it in the very earliest editions of ''40k'', but the pointlesness of it (mainly the fact that it renders all the epic struggles of ''Fantasy'' irrelevant) as well as the variety of continuity issues it caused (such as it being stated or shown multiple times in no uncertain terms that the Chaos Gods were badly struggling to take a single preindustrial planet in Fantasy) saw any connection being dropped. The End Times books indisputably joss any theorized connection through their brief look at the wider universe and the Realm of Chaos.
326** Subverted again in the End Times campaign of Warhammer Fantasy, a group of heroes venture into the [[CirclesOfHell Realm of Chaos]] and encounter a "silvery knight speaking a strange accent", hinted as being Grand Master Kaldor Draigo, a Space Marine lost on the Warp in the 40k setting. This turned out to be a Relictor Stormcast Eternal from Age of Sigmar, the sequel to Warhammer Fantasy. The Realm of Chaos does mess with time after all
327* ''TabletopGame/{{Twilight 2000}}'' and ''TabletopGame/TwentyThreeHundredAD'' both share the same historical background, with World War III taking place in the late '90s. ''Twilight: 2000'' is in the immediate aftermath, and ''2300 AD'' says what happened during the next 300 years of human history. Although it would be fun to contemplate a group of grizzled WWIII veterans encountering the Kafer from ''2300'', there weren't any crossovers in the printed adventures, and the two systems had incompatible game mechanics.
328* ''TabletopGame/{{Earthdawn}}'' and ''TabletopGame/{{Shadowrun}}'', both by FASA, are also set in the same universe. ''Earthdawn'' is said to be the Fourth World, while ''Shadowrun'' is the Sixth, several thousand years later. There are shared characters between the two games, including several dragons and a few immortal elves. ''Shadowrun'' has been hinting for some time in its MetaPlot that the [[EldritchAbomination Horrors]], the primary adversaries in Earthdawn, will soon return to destroy the world. The ties were much stronger when FASA was producing both games, and were downplayed after FASA folded.
329[[/folder]]
330
331[[folder:Toys]]
332* Creator/{{Hasbro}} toylines:
333** The ActionFigureFileCard for the ''WesternAnimation/COPS1988'' character Checkpoint established that his father was a member of an US Army special force unit active throughout the 80's and gave him the name "Wayne R. Sneeden III", the same name as ''Franchise/GIJoe'''s Beachhead. The toy bios for ''COPS'' were written by Creator/LarryHama, who also wrote most of the character profiles and Marvel comic book issues of ''G.I. Joe A Real American Hero''.
334** The GI Joe 25th Anniversary toyline featured a figure named "Specialist [[WesternAnimation/{{MASK}} Trakker]]" whose bio established MASK and VENOM as divisions of GI Joe and Cobra. This is a case of RetroactiveContinuity as ''MASK'' was made when Creator/{{Kenner}} was still a competitor to Hasbro and thus was obviously not made with the idea of slotting it in the ''GI Joe'' universe.
335* All LEGO® play themes take place in the same shared universe, some examples.
336** Johnny Thunder from Adventures is the grandfather of Josh Thunder from Dino and shows up in ''VideoGame/LegoUniverse''.
337** Solomon Blaze, the leader of Blue team from Galaxy Squad is later the leader of the Ultra Agents.
338** According to LEGO Group, Ogel (the main villian of Alpha Team) is a direct descendant of Vladek, the main villain of the Knight's Kingdom II series. Although this seemingly conflicts with previous lore stating that he is some form of immortal being who has been around forever.
339** Chima is one of the 14 (formerly 16) realms of Ninjago.
340** Alien Conquest links together the plots of Pharaoh's Quest and Atlantis (which in itself featured characters from ''Toys/LegoPowerMiners'').
341[[/folder]]
342
343[[folder:Video Games]]
344* Various id Software developers have [[https://www.destructoid.com/stories/bj-blazkowicz-is-doomguy-s-great-grandpa-485365.phtml repeatedly]] [[https://arstechnica.com/gaming/2018/01/id-software-co-founders-confirm-that-its-biggest-games-heroes-are-all-related/ confirmed]] that the Doomguy/Doom Slayer of ''VideoGame/{{Doom}}'' fame is the son of ''VideoGame/CommanderKeen'' and great-grandson of William "B.J." Blazkowicz from the ''VideoGame/{{Wolfenstein}}'' series, thus putting those three franchises in the same universe. You can find quite a few {{Easter egg}}s in-game to support this as well. The codices in the 2016 reboot and ''Eternal'' also introduced the ideas of TheMultiverse, time travel, other heroes with crusades against Hell, and time passing non-linearly in the infinite stretches of Hell, which (along with other hints such as the presence of the Soul Cube and the password to unlock ''VideoGame/DoomII'' being [[Literature/{{Doom}} "FLYNNTAGGART"]]) effectively serves to canonize the seemingly contradictory plots of various ''Doom'' media, as well as the Doom Slayer's guest appearances in other games.
345* ''VideoGame/GrandTheftAuto'', ''VideoGame/{{Bully}}'', and ''VideoGame/{{Manhunt}}'' (all developed by Rockstar Games) take place within the same universe, as confirmed by overlapping references like place names, vehicles and fictional brands. Although the HD series exists in a different universe than the Trilogy, both Carcer City and the Bullworth Academy were referenced in ''VideoGame/GrandTheftAutoV''. ''GTA V'' also mentioned Jack Marston's memoirs as an in-universe history book, which doesn't confirm that ''VideoGame/RedDead'' is set in the same universe as well (since, for example, ''Red Dead'' uses real-world names for certain locations that are fictionized in ''Grand Theft Auto'', such as "New York (City)" instead of "Liberty (City)" or "California" instead of "San Andreas"), but might imply that [[spoiler:[[EarnYourHappyEnding Jack Marston finally got over his grief and found success in his dreams of being a writer]]]].
346* ''VideoGame/HalfLife'', ''VideoGame/{{Portal}}'', and ''VideoGame/CounterStrike'' (or at least the [=GoldSrc=] games) share a universe. ''Portal'' includes references to Black Mesa and the Combine throughout the first and second games, while ''Counter-Strike'' shares a lot of assets with [[VideoGame/HalfLife1 the first]] ''Half-Life'' (including Black Mesa branded containers, scientists, and cars) in both the original game and the ''Condition Zero'' [[MissionPackSequel standalone]] [[ExpansionPack expansion pack]] on part of originally being a mod. ''Condition Zero'' throws in a few pieces of Black Mesa's fictional tech in its single player levels, such as their auto-turrets and [=M23B=] laser mines. There's also the fact that ''CS'' was originally bundled with ''HL'' in retail (the original came with the first game, and the Source remake was bundled with the second) and originally [[https://imgur.com/eo9mvAE titled]] ''Half-Life: Counter-Strike'', while ''Portal'' was bundled with ''VideoGame/HalfLife2''[='s=] episodic expansions as part of the Orange Box (''Portal 2'' was sold standalone).
347** ''VideoGame/TeamFortressClassic'', another game derived from a ''Half-Life'' mod, was heavily implied to be in this universe for much the same reasons as ''Counter-Strike'' (though a slightly weaker case since it never carried the ''Half-Life'' brand, despite being bundled with it in some packs and sporting the lambda logo on its box art). The [[https://wiki.teamfortress.com/wiki/Hunted_(Classic) "Hunted"]] map, for instance, ''is'' the Black Mesa facility. This was going to be made explicitly canon with an [[http://combineoverwiki.net/wiki/Half-Life:_Hostile_Takeover expansion pack]] at one point, but the project was canceled 60% of the way through. In 2016, ''Team Fortress Classic'' was folded into the ''VideoGame/TeamFortress2'' universe instead, [[CanonWelding via comic.]]
348** An EasterEgg in ''VideoGame/HalfLifeAlyx'' [[https://www.pcgamer.com/gnome-chompski-dr-breen-and-other-half-life-alyx-easter-eggs-weve-found-so-far/ indicates]] that ''Team Fortress'' is [[ShowWithinAShow an in-universe fictional franchise]] within the ''Half-Life'' universe.
349* Creator/Suda51's ''VideoGame/NoMoreHeroes'', ''VideoGame/KillerIsDead'', ''VideoGame/Killer7'', ''VideoGame/LollipopChainsaw'' and ''VideoGame/TheSilverCase'' officially share the same universe. The connection is made during several scenes in ''Travis Strikes Again''; such as the introduction featuring Dan Smith telling Bad-Man where to find Travis, Kamui Uehara assisting Travis in locating the Death Balls, Travis meeting Mondo on a hunt for Dracula. A scene in ''The Silver Case: 25th Ward'' has someone describe a "Mr. TD" riding a motorcycle with a talking cat looking for a sphere. For extra content, ''VideoGame/ShadowsOfTheDamned'' is also a popular game in-verse.
350* Cing's {{adventure game}}s ''VideoGame/AnotherCode'' and ''VisualNovel/HotelDuskRoom215'' (and their respective sequels) take place in the same universe, but are otherwise unrelated.
351* The ''Franchise/SuperMarioBros'' and ''Franchise/DonkeyKong'' series exist in the same universe, by virtue of sharing [[VideoGame/DonkeyKong a common first game]]. Additionally, due to first appearing in ''VideoGame/SuperMarioWorld'' and ''VideoGame/SuperMarioLand2SixGoldenCoins'' respectively, the ''VideoGame/YoshisIsland'', ''VideoGame/WarioLand'', and ''VideoGame/WarioWare'' series are also part of the expanded ''Super Mario'' universe, though in a ''very'' loose technicality for the latter two, as unlike the ''Yoshi'' and ''Donkey Kong'' universes which have a great presence in ''Mario'' games & spinoffs, the ''Wario'' universes have minimal to no presence in the ''Mario'' series outside of Wario himself.
352** When Creator/{{Rare}} was still developing games for Creator/{{Nintendo}}, ''VideoGame/DiddyKongRacing'' meant that ''VideoGame/BanjoKazooie'' and ''VideoGame/ConkersBadFurDay'' were also (very tenuously) connected, but it's no longer the case since Rare was sold to Microsoft.
353** The ''VideoGame/WarioWare'' and ''VideoGame/RhythmHeaven'' series are heavily hinted to exist in the same universe: Orbulon's minions, the Space Bunnies, appear in the original ''Rhythm Tengoku'', a child version of Young Cricket is playable in a minigame in ''Rhythm Heaven Fever'' (and is confirmed when the second player shows up for his ''VideoGame/WarioWareGold'' trailer) , and ''Rhythm Heaven Megamix'' features two unlockable sets starring the ''[=WarioWare=]'' cast. In turn, ''Game & Wario'' feature multiple background appearances by ''Rhythm Heaven'' characters throughout its cutscenes.
354** Mario and Donkey Kong both appear in the ''VideoGame/PunchOut'' games, the former as the referee in ''Mike Tyson's Punch-Out!!'' (and all subsequent re-releases) and the latter as a secret challenger in both Last Stand Mode and Exhibition Mode in the Wii installment.
355** Many other Nintendo games have references to each other that imply they share a universe. There are many examples of minor enemies from one game series having appearances in other games, although often with the names changed. For example, ''VideoGame/TheLegendOfZeldaLinksAwakening'' has several enemies from the ''Mario'' games [[spoiler:though that particular title has the justification that it takes place in a dream world]]. Although several other Nintendo games have the other games existing as [[ShowWithinAShow games in their universe]]. For most games, the degree to which they are connected is left unclear.
356* Over the years, Creator/{{Capcom}} has created a hefty shared universe between several of their arcade/retro franchises, all centered around ''Franchise/StreetFighter'':
357** The first, and most obvious one, was ''VideoGame/FinalFight''. Since it started off as a sequel to the original 1987 ''[[VideoGame/StreetFighterI Street Fighter]]'' game (even briefly going by the name ''Street Fighter '89''), it makes sense that a few characters from the original ''Final Fight'' (namely Guy, Sodom, Rolento, Cody and years later Maki) [[{{Transplant}} would eventually appear as fighters]] in the ''VideoGame/StreetFighterAlpha'' series, with stages and endings featuring cameos by other characters. Andore appears in ''VideoGame/StreetFighterIII'' under the name of "Hugo", with Poison acting as his manager. Both Guy and Cody returned in ''[[VideoGame/StreetFighterIV Super Street Fighter IV]]'', with Hugo and Rolento later returning in ''Ultra Street Fighter IV'' with Poison as a newcomer (all three being ported from ''VideoGame/StreetFighterXTekken''). ''VideoGame/StreetFighterV'' saw the addition of Abigail, a HeadSwap of the Andore family and the original game's penultimate boss, and Lucia, one of the playable characters in ''Final Fight 3''. With the central hub of ''VideoGame/StreetFighter6'''s World Tour Mode now taking place entirely through Metro City, everything has come full circle.
358** This has gone the other way as well, as Chun-Li makes a cameo in Stage 1 of ''Final Fight 2'' and Cammy is a secret challenger at the Fight Club in ''Final Fight: Streetwise''. ([[WildMassGuessing Several fans also believe]] that The Ghost, another pit fighter, is [[VideoGame/StreetFighterI Joe]] due to their similar appearances and fighting styles.)
359** ''VideoGame/SaturdayNightSlamMasters'' started out being connected to ''Final Fight'' at first with Haggar being part of its roster, but it still featured a few cameos of ''Street Fighter'' characters in stage backgrounds (Chun-Li and Honda in the original; Zangief, Honda and Balrog in ''Ring of Destruction''). In ''Street Fighter'' the series got small mentions, however, such as Hugo's ending in ''[[VideoGame/StreetFighterIII 2nd Impact]]'' namedropping some ''Slam Masters'' wrestlers as rivals for Hugo, or Zangief's ''Street Fighter V'' DLC costume "The Gief" including some references to the series in his win quotes. [[AllThereInTheManual Supplemental materials]] for both series, however, provide much clearer canonical ties like that Birdie and Titanic Tim were close friends who eventually formed a tag team called the "500 Trillion Powers", El Stingray and El Fuerte shared a Lucha Libre mentor named Meteorito Jr., and Yoko Harmageddon, Rainbow Mika's mentor and trainer, was forced to retire after sustaining a CareerEndingInjury in the ring against Black Widow.
360** ''VideoGame/CaptainCommando'' has no direct ties with ''Street Fighter'', but instead to ''Final Fight'' -- it takes place in a futuristic version of Metro City, a sculpt of Mike Haggar is featured in the game as an bonus item, and Ginzu the Ninja is a practitioner of Bushinryu just like Guy, and backstory material indicates his father, Gou, is Guy's successor as 40th Grandmaster. ''Street Fighter IV'' sort of brought some minor connection through C.Viper, whose moves and techniques are copied from Captain Commando himself and she uses a powered suit that fans like to theorize is a predecessor/prototype of the Captain's armor. Although the Shadaloo Research website's bio on Ibuki's friend Yuta Homura implies ''Captain Commando'' [[GameWithinAGame exists as a video game]], it is worth noting ''Street Fighter 6'' director Takayuki Nakayama also stated on Twitter that Ginzu's father Gou is Kimberly's senpai as Guy's student, leaving the door open for a World Tour appearance[[note]]which sort of happens in a piece of artwork in a memory of Kimberly from when she met and was defeated by him[[/note]] and/or further inter-title connectivity.
361** ''VideoGame/RivalSchools'' has Sakura appear in the first game as an unlockable GuestFighter (with in-game lore and [[https://www.creativeuncut.com/gallery-10/rs-illust-sakura_hinata_natsu.html promotional artwork]] establishing Sakky as being ChildhoodFriends with Hinata and Natsu), and Hinata's uniform being based on Ibuki's school uniform as seen in her ''III'' ending (the implication being the two went to the same high school). School Life Simulator in the Platform/PlayStation port furthered this by establishing Hinata picked up her fighting skills from correspondence courses sold by Ken (thus explaining her {{Shotoclone}} credentials), whereas [[ClassRepresentative Chairperson]] has documents about Saikyo (yes, ''[[JokeCharacter that]]'' [[VideoGame/StreetFighterAlpha Saikyo]]) she uses to train the player avatar. In addition, it's implied that Ran may be related to Dan himself, both sharing the last name of Hibiki. Most of these details were dropped in ''Project Justice'' and the Hinata/Ibuki connection was ignored in ''VideoGame/StreetFighterIV'' when Ibuki's high school turned out to be other than Taiyo High, which, when combined with the discrepancy of Sakura's blood type being different between series (A in ''SF'', O in ''Rival Schools''), left people wondering if the two series were truly set in the same world. This all changed with ''VideoGame/StreetFighterV'', first when Hinata and Tiffany made background cameos in the Kanzuki's Beach stage, then followed by Akira joining the fray in the game's fifth wave of [[DownloadableContent DLC]], with the producer and director directly stating both series do indeed take place in the same world as well as Akira's Story directly acknowledging Sakura's appearance in the original ''Rival Schools''.
362** ''VideoGame/{{Strider}}'' [[CanonWelding was introduced into the mythos]] with Season 2 of ''VideoGame/StreetFighterV'' with its inclusion of Zeku, Guy's master and the preceding grandmaster of the Bushin style. His design and moveset contain numerous allusions to [[VideoGame/{{Strider}} Strider Hiryu]], "Original Strider" is an unlockable title of his, and he even name drops the Strider organization in his story, all of which suggest Zeku founded the Striders or was otherwise heavily involved with the organization's inception. The CanonWelding possibly goes even further (and outside of Capcom's reach), as Zeku's moveset also appears to take influence from ''VideoGame/CannonDancer'' (a SpiritualSuccessor to ''VideoGame/{{Strider|Arcade}}'' by original creator Kouichi Yotsui), such as his ability to generate RazorWind via kicks and having specials named after protagonist Kirin and his mercenary group Teki. Yotsui's works (''Strider'', ''Cannon Dancer'', and ''VideoGame/MoonDiver'') all have nods to one another that imply they're connected in some way, with Yotsui stating that Kirin was related to Tong Pooh and the other Kuniang sisters from ''Strider'' [[AmbiguouslyRelated somehow]] (hence the similar kicking techniques) before later affirming in 2023 that he envisioned Kirin to be their nephew.
363** ''VideoGame/ForgottenWorlds'' is not really confirmed, but heavily implied by the ''Final Fight'' character Two-P. Two-P was originally designed to resemble the ''Forgotten Worlds'' second player character (hence his name, "Two-P" = Player Two). What started as a cool nod in the design has grown into the implication the two characters are one and the same, with Two-P having total amnesia of his past and having lots of little nods to the ''Forgotten Worlds'' character like having one of his lines as his catchphrase, being good with heavy weapons and disliking earthworms and lizards (which appear as enemies in the first stages of ''Forgotten Worlds'').
364** ''Street Fighter V'' director Takayuki Nakayama stated in the design notes for Menat that her crystal ball is "a product of a god-beast believed to have once protected the phantom desert kingdom of Alanbird." Alanbird is the Japanese name of Sangypt, one of the countries in ''VideoGame/RedEarth'', and the god-beast is implied to be the game's boss character Ravange/Secmeto.
365** Three characters from Capcom's old Arcade game ''Pirate Ship Higemaru'' and its sequel ''Higemaru Makajima'' were established on Capcom Fighters Network as existing in the world of Street Fighter, and they were also established to be brothers of Ruby Heart from ''VideoGame/MarvelVsCapcom2''. In this instance, however, they were clarified to not be the same characters, but characters inspired by them (with the point made clearer by the fact this Ruby ''doesn't have'' the Heart surname). This version of the main protagonist Momotaru is a Norwegian buff sailor who fought Ryu at some point, with Bows (his arch-enemy from the first game) and Beard (a legendary pirate that lived centuries before either) now being his brothers and rough-but-well-meaning sailors instead of pirates.
366** There's also Akuma's appearance in ''VideoGame/Tekken7''. See below for more details.
367* A few other Creator/{{Capcom}} titles have their own shared continuity, though not necessarily with ''Street Fighter'' or any of its related series. [[note]]As noted on the FanonWelding page, the fact that ''VideoGame/MarvelVsCapcom3'' is subtitled ''Fate of '''Two''' Worlds'' would suggest the various Capcom series are set in a single universe, not several, though this may only be for the sake of [[VideoGame/CapcomVs these particular crossovers]] as opposed to a legitimate example of a SharedUniverse and/or CanonWelding.[[/note]]
368** The Red Arremer clan from ''VideoGame/GhostsNGoblins'' has appeared in some of Capcom's earlier titles, establishing a small universe of sorts -- they appear in ''Higemaru Makaijima'' along with a whole island of enemies from the game (plus a Red Arremer is revealed as the FinalBoss) and in ''VideoGame/BlackTiger'' as enemies. In turn, ''VideoGame/TheKingOfDragons'' features the Great Dragonian, a large {{Armored Dragon|s}}-type enemy that appears to be an upgraded form of the Dragonian, a boss first seen in ''Black Tiger''.
369** Speaking of Higemaru, a character featured in ''VideoGame/StriderArcade'' is called "Captain Higemaru Jr." (Captain Beard Jr. in English), sharing a name and general design with the Higemaru Captain from ''Makaijima'', and possibly implying he's a descendant.
370** ''VideoGame/DinoCrisis'' has several crates featuring the [[Franchise/ResidentEvil Umbrella Corporation logo]]. Furthermore, [[LightGunGame light gun shooter]] GaidenGame ''Dino Stalker'' is actually the third installment of ''Resident Evil'''s spin-off series ''[[VideoGame/ResidentEvilGunSurvivor Gun Survivor]]'', featuring Umbrella {{Easter Egg}}s in the form of the "Woman Drawing Water" statue seen in [[VideoGame/ResidentEvil1 the Spencer Mansion's exhibition room]] and an abandoned Umbrella building.
371** ''Dino Crisis'' may or may not have ties to ''Franchise/AceAttorney'' of all games; Creator/ShuTakumi wrote the scenario of the first game before going on to serve as the second game's director and then work on ''Ace Attorney'', while the setting of original ''Dino Crisis'', the Borginian Republic/Republic of Borginia, is mentioned several times through the ''AA'' series.
372** The dog that you can rescue from a bear trap early on in ''VideoGame/ResidentEvil4''? None other than Hewie from sister SurvivalHorror game ''VideoGame/HauntingGround''.
373** And the UrExample in terms of Capcom's cross-continuity: main character of ''VideoGame/CommandoCapcom'' Super Joe appearing as a secondary character in ''VideoGame/BionicCommando'', establishing the two series were set in the same world, which was later followed-up by the sequels and remakes. Capcom USA earlier tried to establish this connection by claiming the nameless protagonist of the arcade ''Bionic Commando'' to be Super Joe in its flyer, and did this a second time to another arcade game, the otherwise-unrelated gun-n-run ''The Speed Rumbler''. While the former was kinda canonized by the history recap in the ''[[VideoGameRemake Rearmed]]'' website, the latter was completely ignored. The 2009 ''Bionic Commando'' also has billboards sporting the logo of [[VideoGame/ResidentEvil5 TRICELL]] as well, possibly tying it to the ''Resident Evil''/''Dino Crisis'' universe above.
374* 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 ''VideoGame/FatalFrameMaidenOfBlackWater'', and ''VideoGame/{{Nioh}}'' turned out to be a prequel to ''Ninja Gaiden'', as an ancestor of Ryu named Jin Hayabusa appears in a lategame mission.
375* While Creator/{{Koei|Tecmo}}'s ''VideoGame/WarriorsOrochi'' was made to confirm that its series ''VideoGame/DynastyWarriors'' and ''VideoGame/SamuraiWarriors'' take place in the same universe, the second trailer of ''Warriors Orochi 3'' more or less confirms that Koei's other games (''VideoGame/WarriorsLegendsOfTroy'' and ''VideoGame/BladestormTheHundredYearsWar'') also are part of this setting due to the presence of Achilles and Jeanne D'Arc. It also confirms that its business partner Tecmo's series ''VideoGame/NinjaGaiden'' and ''VideoGame/DeadOrAlive'' (see directly above) take place there due to the presence of Ryu Hayabusa, Ayane, Momiji, and later Kasumi. Naotora Ii would later cross over to ''DOA'', making an appearance in ''VideoGame/DeadOrAlive5 Last Round''.
376* The ''VideoGame/{{Ultima}}'' series features references to the ''VideoGame/WingCommander'' series. In ''VideoGame/UltimaI'' there were spaceships that in ''VideoGame/UltimaVII: The Black Gate'' was explained to be the spaceship of the Kilrathi.
377** Origin seemed to be trying to establish this in all of their mid-90s games -- in addition to the connections between ''Wing Commander'' and ''Ultima'', the manual for ''Wing Commander Arena'' has, among other things, an advertisement for a ''[[VideoGame/{{Crusader}} No Remorse]]'' movie.
378* The United Galaxy Space Force, UGSF Series for short, links ''30'' Creator/{{Namco}} games such as ''VideoGame/{{Galaxian}}'', ''VideoGame/{{Galaga}}'', ''VideoGame/{{Bosconian}}'', and ''VideoGame/DigDug'' into the same universe, even having a clear [[http://ugsf-series.com/ timeline.]]
379** ''Dig Dug'', ''VideoGame/{{Baraduke}}'' (or ''Alien Sector'' if you prefer), and ''VideoGame/MrDriller'' are set in the same world, by virtue of Taizo Hori and [[GenderBlenderName Toby]] [[DubNameChange "Kissy"]] [[SamusIsAGirl Masuyo]] being the parents of Susumu, Ataru, and Taiyo Hori (the first of the three being TheHero of the ''[[SpinoffBabies Mr. Driller]]'' series) and the events of the first ''Dig Dug'' being referenced directly in ''Mr. Driller'' (as the "Dig Dug Incident").
380** Additionally, Pookas often show up in ''VideoGame/PacMan'' titles, despite the ''Pac-Man'' universe not being anywhere in the UGSF timeline, although considering the number of elements that overlap in Namco games in general (the Special Flag from ''VideoGame/RallyX'' showing up in several other games for instance), this may just be more of a tribute rather than an actual connection.
381* ''VideoGame/EVEOnline'' and the FPS ''VideoGame/DustFiveOneFour'' are part of the same universe...''literally''. Players can accept contracts and do missions for the player-run companies of ''EVE Online'', and even form their own corporations that ''EVE Online'' players are able to join.
382* The ''VisualNovel/ScienceAdventureSeries'' consisting of ''VisualNovel/ChaosHead'', ''VisualNovel/SteinsGate'', ''VisualNovel/RoboticsNotes'', and ''VisualNovel/ChaosChild'' occur in the same universe. These stories take place several years apart from each other, though there are several scenes in each that make references to the others.
383* The presence of both Seath the Scaleless and Patches the Hyena (as well as some other recurring characters and elements) seem to indicate that ''VideoGame/DarkSouls'' shares the same world and universe as the ''VideoGame/KingsField'' series and ''VideoGame/DemonsSouls''. With Patches returning as Patches the Spider, as well as the presence of the Moonlight Greatsword, ''VideoGame/{{Bloodborne}}'' seems to be connected as well. Likely the only reason the connection between ''Demon's Souls'', ''Bloodborne'' and ''Dark Souls'' wasn't made explicit is because the former two [=IPs=] technically belong to Sony, not Creator/FromSoftware.
384* Creator/BroderbundSoftware tried to work the Bungeling Empire into most of its early 1980s action games. ''VideoGame/{{Choplifter}}'' and ''VideoGame/LodeRunner'' had it AllThereInTheManual; ''Raid on Bungeling Bay'' had it in the title but wasn't really a sequel to anything. Then, ''Lode Runner'' is revealed to be connected to ''VideoGame/{{Bomberman}}'' by the ending of the NES version of the latter.
385* ''VideoGame/SpaceHarrier'' is set in the Fantasy Zone; several ''VideoGame/FantasyZone'' games reference it to various degrees. The culmination of this was the unreleased crossover game ''Space Fantasy Zone''.
386* ''VideoGame/{{Marathon}}'' takes place in the same universe as ''VideoGame/PathwaysIntoDarkness'', and possibly ''Franchise/{{Halo}}''. There is even a terminal in the first ''Marathon'' game (which is a historical record) that talks about the events of ''Pathways''.
387* The entire premise of the ''VideoGame/RealityOnTheNorm'' project. It is a shared universe set around the eponymous CityOfAdventure.
388* The Creator/TomClancy series games (''VideoGame/SplinterCell'', ''VideoGame/GhostRecon'', and ''VideoGame/{{HAWX}}'') share a single universe, and often have crossover cameos with each other.
389** 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) ''VideoGame/GhostReconFutureSoldier'' 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]]''.
390** ''VideoGame/RainbowSix'', the original Tom Clancy game, may also be part of the shared universe - ''Vegas 2'' has one mission in which you receive support from an "NSA Agent" who dresses very similarly to Sam Fisher.
391* [[https://www.youtube.com/watch?v=bKw-NfxseUY This easter egg]] from ''VideoGame/AssassinsCreedIVBlackFlag'' heavily suggests that ''Franchise/AssassinsCreed'', ''Franchise/FarCry'' and ''VideoGame/WatchDogs'' share a universe. [[spoiler:Considering that ''ACIV''[='s=] MacGuffin would be of tremendous use in ''Watch_Dogs'', this is unsurprising.]]
392** Oliver Garneau from ''Black Flag''[='s=] [[FramingDevice Frame Narrative]] leaves for Chicago (where ''Watch_Dogs'' is set) during the game. [[spoiler:In ''Watch_Dogs'', [[PlayerCharacter Aiden]] kills him as part of an optional side mission under mysterious orders from [[Characters/AssassinsCreedTheAssassins "The Brotherhood."]]]] There are also several references to Abstergo Industries, and, at one point, a child can be found playing ''VideoGame/AssassinsCreedIIILiberation'', which is a video game produced by Abstergo Entertainment in-universe.
393** One mission in ''VideoGame/FarCry3'', which discusses "strange scientists" and "genetic memories", takes you to an abandoned Abstergo laboratory, placing this game and ''VideoGame/FarCry4'' in the same universe as ''Assassin's Creed'' and ''Watch Dogs''. This extends to ''VideoGame/FarCry2'' which is definitely set in the same universe as ''3'' and ''4'', due to them sharing characters and references, but whether the original or [[VideoGame/FarCry5 the fifth entry]] are still in the universe is yet to be seen. [[spoiler:The world goes through a nuclear apocalypse at the end of ''5'', that is expanded upon in ''VideoGame/FarCryNewDawn''; if that doesn't happen in the mainline ''Far Cry'', ''Watch Dog'', and ''Assassin's Creed'' franchises then it seems that ''5'' branched off into an AlternateContinuity.]]
394*** The console-only remake of the first game, ''VideoGame/FarCryInstincts'', deviates from the PC-only original in several ways, in both gameplay and continuity. It was followed by two (also console-only) sequels, ''Far Cry Instincts: Evolution'' and ''Far Cry Instincts: Predator''. The ''Instincts'' sub-series somewhat ties itself to ''Far Cry 2'', as it has Jack Carver acting as an arms dealer, increasing the evidence for the theory that he is in fact the Jackal from ''Far Cry 2'' (see also: the Jackal and Instincts!Jack both being former U.S. Army, while OG!Jack was former U.S. Navy). Due to Crytek leaving after the first game and not being present for the sequels or console ports, a common fan theory is that ''Far Cry'' is in the same universe as ''VideoGame/{{Crysis}}'' while ''Far Cry: Instincts'' in a different timeline acts as the start of Ubisoft's ''Far Cry''/''Watch Dogs''/''Assassin's Creed'' universe.
395** ''VideoGame/{{Rayman}}'' and ''VideoGame/FarCry3BloodDragon'' are also [[ShowWithinAShow video games in-universe]], presumably by Abstergo Entertainment.
396* ''Franchise/MegaMan'':
397** [[VideoGame/MegaManClassic Classic]], ''[[VideoGame/MegaManX X]]'', ''[[VideoGame/MegaManZero Zero]]'', ''[[VideoGame/MegaManZX ZX]]'', and ''[[VideoGame/MegaManLegends Legends]]'' are all on the same timeline despite the tone reaching further and further away from the original series with each new series.
398** ''VideoGame/MegaManBattleNetwork'' and ''[[VideoGame/MegaManStarForce Star Force]]'' both share a timeline [[AlternateTimeline separate]] from the original series. However, it is also implied that Lan Hikari's grandfather (Tadashi Hikari aka "Dr. Light") and Doctor Wily from those games are the same, just that in this universe [[PointOfDivergence internet and cyberspace-based technology took off instead of robotics technology]].
399* According to a 1982 issue of ''Electronic Games'' magazine, ''VideoGame/Robotron2084'' takes place in the same universe as ''VideoGame/{{Defender}}'' and ''Stargate'' (aka ''Defender II''). The hardly released ''Blaster'' is a sequel to ''Robotron''.
400* ''VideoGame/HarvestMoon'' has a vague continuity, not helped by the amount of reusing the same characters. It has been proven that some games share a universe though:
401** ''VideoGame/HarvestMoonAWonderfulLife'' and ''Harvest Moon Another Wonderful Life'' take place in the same world as ''VideoGame/HarvestMoonDS'', ''Harvest Moon DS Cute'', ''[[VideoGame/HarvestMoonBackToNature Harvest Moon Friends of Mineral Town]]'', and ''Harvest Moon More Friends of Mineral Town''. The DS games take place at least a hundred years in the future from the others.
402** ''VideoGame/HarvestMoon64'' is a direct sequel to the original ''VideoGame/HarvestMoon1''. The ''64'' incarnations of Elli and Gray also appear ''VideoGame/HarvestMoonTreeOfTranquility''.
403** ''VideoGame/HometownStory'' shares a universe with ''VideoGame/HarvestMoon''. They were both created by the same man -- in fact, ''Hometown Story'' is considered a SpiritualSuccessor to ''Harvest Moon''.
404* ''VideoGame/Downfall2009'' and ''VideoGame/TheCatLady'' share a universe. The 2016 remake of ''Downfall'' make this even more obvious, having [[spoiler:The Cat Lady ''herself'', Susan Ashworth, show up at the end]]. This indicates that ''Downfall'' takes place sometime after the events in ''The Cat Lady''.
405* 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.) and Creator/{{Nintendo}} (''VideoGame/FireEmblem'' and '' VideoGame/XenobladeChronicles'') 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.
406* ''VideoGame/BioShock'', which has ties to ''VideoGame/GoneHome'', with one of the SNES game cartridges you can find in Sam's room being ''Super Spitfire'', which references a minigame called ''Spitfire'' in ''VideoGame/{{BioShock 2}}: Minerva's Den'', which the developers of ''Gone Home'' previously worked on, and from there to ''VideoGame/{{Firewatch}}'', with one of the novels you can find in the caches being a copy of The Accidental Savior, the novel written by the protagonist's father in ''Gone Home''. Also implied by [[http://www.polygon.com/2016/2/9/10938330/firewatch-gone-home-and-bioshock this]] interview with Fullbright co-founder Steve Gaynor.
407--> Steve Gaynor has previously stated that the developer "very lightly implies" that Gone Home takes place in the same reality as [=BioShock=]. Gaynor's team has also inserted a small reference to Firewatch into the console version of its game.
408* ''Franchise/{{Tekken}}'':
409** Through CanonWelding, and Akuma's GuestFighter status in ''VideoGame/Tekken7'', it's suggested that ''Tekken'' and ''Franchise/StreetFighter'' are set in the same universe (or, at the very least, [[AlternateUniverse a version of]] ''Street Fighter'' exists in the ''Tekken'' universe). Unlike the following DLC characters [[VideoGame/FatalFury Geese Howard]], [[VideoGame/FinalFantasyXV Noctis]] and [[Series/TheWalkingDead2010 Negan]], Akuma is actually present in the game's story, has established plot ties to its BigBad, and faces both Heihachi and Kazuya in epic battles, the latter serving as the game's epilogue.
410** The ''VideoGame/SoulSeries'' takes place in the distant past of the ''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. By extension, this would also mean that ''Franchise/TheWitcher'' is canon to ''Tekken'' and ''Street Fighter'', considering that Geralt's appearance in ''VideoGame/SoulcaliburVI'' is canon to that game's story.
411** ''Tekken'' is canon to ''VideoGame/{{Xenosaga}}'', as Shion Uzuki can receive an email from Kazuya in ''Episode I'' showing him in ''VideoGame/Tekken4'', which would therefore make ''Xenosaga'' canon to ''Street Fighter'', ''Tekken'', ''Soulcalibur'', and ''The Witcher''. [[spoiler:Given that ''VideoGame/XenobladeChronicles3FutureRedeemed'' ended up ArcWelding ''Xenosaga'' and ''VideoGame/XenobladeChronicles'', it would also mean that the ''Xenoblade Chronicles'' games are canon to all the aforementioned franchises.]]
412* Like Capcom above, Creator/{{SNK}} is no slouch when it comes to inter-title continuity.
413** Several of SNK's properties are set in the same universe, if ''Franchise/TheKingOfFighters'' [[MassiveMultiplayerCrossover is any indication]]. ''VideoGame/TheKingOfFightersXIV'' 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]].
414** ''KOF'' itself is an AlternateContinuity to 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 [[VideoGame/TheKingOfFighters96 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 ''[[VideoGame/TheKingOfFightersXII KOF XII]]''.
415** The ''VideoGame/FuunSeries'' (''Savage Reign'' and its sequel ''Kizuna Encounter'') is suggested to take place in the [[TwentyMinutesIntoTheFuture far future]] of ''Fatal Fury'' due to the setting (Jipang City is implied to be a futuristic/rebuilt Southtown), a young Chung Paifu receiving his hat from none other than Terry (referred to only as "the Legendary Wolf"), and Kim Sue Il being AmbiguouslyRelated to Kim Kaphwan (presumably his descendant). Max Eagle, another one of the playable fighters, works for the SWF (Southtown Wrestling Federation) first mentioned in ''3 Count Bout''.
416** ''VideoGame/BurikiOne'' exists in a version of the ''Fatal Fury'' timeline; the game marks [[GuestFighter the first appearance]] of the Ryo Sakazaki incarnation of Mr. Karate and Seo Yong Song is established as a pupil of Kim Kaphwan. [[note]]''Buriki One'' gives Ryo's DOB as 1967 as opposed to 1957 in ''[=AOF1=]'', implying it's an AlternateContinuity.[[/note]]
417** In a non-fighting game example, ''VideoGame/MetalSlug'' has featured Ralf and Clark from ''VideoGame/IkariWarriors'' (in their ''KOF'' designs) [[CanonImmigrant as playable characters]] since the sixth installment. In return, Fio was a SecretCharacter in ''VideoGame/KOFMaximumImpact2'' (one of two [[AlternateContinuity Alternate Continuities]] to the mainline ''KOF'' games) and explicitly recognizes her comrades-in-arms. Fellow soldier of fortune Leona (also from ''The King of Fighters'') later appeared in ''Metal Slug XX'', the UpdatedRerelease of ''7'', and ''VideoGame/MetalSlugAttack'' would eventually complete the set by adding in Heidern and Whip (along with many other ''KOF'' characters as playable units).
418** ''VideoGame/PsychoSoldier'' is a loose sequel to the events of ''VideoGame/{{Athena}}'', featuring the goddess's descendant/possible reincarnation Athena Asamiya (another character who became a ''KOF'' staple). In an interesting aversion, neither ''The King of Fighters'' nor the direct sequel to ''Athena'' (''Athena: Full Throttle'') clarify whether or not the goddess Athena is related to Gaia, who is established as [[AllMythsAreTrue the mother of]] {{Orochi}} in ''KOF'' lore, like in [[Myth/ClassicalMythology the source material]].
419* The connections between ''VideoGame/SaintsRow'' and Creator/{{Volition}}'s other big franchise, ''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''. Then it had merged with the 3rd Street Saints by ''VideoGame/SaintsRowTheThird'', weakening the connection; despite an audio cameo by Shaundi in ''VideoGame/RedFactionGuerrilla'', which seems to be the ''Saints Row 2'' version of her (granted ''Guerrilla'' came out before ''Saints Row 3'' and its developments), there are no mentions of the Saints as an organization. However, one of ''[=SR3=]'''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 passing references to Ultor, so it presumably never gets bogged down in Stilwater in this timeline and eventually reaches Mars.
420* [[https://kotaku.com/more-hints-that-dragon-age-and-mass-effect-are-in-the-s-1660783315 Easter eggs]] suggest that ''Franchise/DragonAge'' is a [[ShowWithinAShow video game franchise]] in the universe of ''Franchise/MassEffect''. Evidence for this include the Blood Dragon Armor in ''Mass Effect 3'' being modeled after a suit from ''Dragon Age'' (complete with the series logo on the chest) and a statue of a ''Dragon Age'' ogre being seen in Donovan Hock's vault. Also, in ''VideoGame/DragonAgeInquisition'', a krogan's head can be seen in the room of hunting trophies at Halamshiral Palace; apparently a krogan ended up on Thedas at some point and was killed and taxidermied.
421* ''Franchise/{{Hitman}}'' and ''VideoGame/KaneAndLynch''. The titular duo from the latter makes a cameo appearance in ''Hitman: Absolution'', after being seen on newspapers in ''Hitman: Blood Money.'' You can [[TakeThat kill them.]]
422* Some of ''Creator/WadjetEyeGames'' creations are confirmed to be set in a shared universe.
423* The Infocom ''VideoGame/{{Zork}}'' text adventures are set in the same universe as the ''Enchanter'' trilogy (''Enchanter'', ''Sorcerrer'', ''Spellbreaker''). The ''Enchanter'' Trilogy has fewer Zorkisms, but if you enter a pitch black place, you are still likely to be eaten by a Grue if you don't turn on a light source. The game ''Starcross'' also has the Grue reference in both the story and the stock warning about entering a dark place. Starcross is a futuristic ScienceFiction game that is played straight and its inclusion in the Zorkian universe is incongruous, [[spoiler:despite the fact that a grue is seen in the space zoo]]. Game reviewers such as Digital Antiquarian have theorized that this might be due to laziness on the programmer's part as they could have simply changed the code to remove the "grue" reference or change the light source limitation.
424* Although most Disney worlds depicted in ''Franchise/KingdomHearts'' are alternate universe versions of the original properties they represent, WordOfGod states that the staff of Pixar worked with Creator/TetsuyaNomura to fit the storylines of the Pixar worlds in ''VideoGame/KingdomHeartsIII'' into the continuity of the original films, and that as far as Pixar is concerned the events of the Toy Box world is "Toy Story 2.5", meaning that the ''Franchise/ToyStory'' films canonically take place within the universe of ''Kingdom Hearts''. The same is likely true of Monstropolis and ''Franchise/MonstersInc'', albeit without the same explicit WordOfGod.
425* Creator/TelltaleGames' ''VideoGame/TheWalkingDeadTelltale'' 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.
426* While they don't share a single universe, ''Franchise/MortalKombat'' seems to share to be connected to the same multiverse as Franchise/DCComics (or at least video games based on DC properties). This started with the direct crossover game, ''VideoGame/MortalKombatVsDCUniverse'', and continued on to ''Mortal Kombat'' repeatedly providing {{Guest Fighter}}s for DC's ''VideoGame/{{Injustice|GodsAmongUs}}'' [[VideoGame/Injustice2 series]], which is also made by [[Creator/NetherrealmStudios Mortal Kombat's creators]]. ''Injustice'' would then return the favor with the Joker's inclusion as a guest fighter in ''VideoGame/MortalKombat11''. There are even hints (admittedly of questionable canonicity) that the cosmic forces at work in each respective series may be playing a part in the other.
427* 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. With the release of ''VideoGame/CallOfDutyVanguard'', itself a sequel to ''VideoGame/CallOfDutyWWII'', both games are now canon to this overarching ''Call of Duty'' universe.
428* Several, possibly all, of the different franchises created by Creator/ElephantGames are confirmed to take place in the same universe. This is most evidently confirmed by the CrisisCrossover series ''VideoGame/DetectivesUnited'', but there are also instances of games in one series referencing the events or characters of another, such as Alice Gray (in the ''VideoGame/GrimTales'' series) calling James Blackthorne (from the ''VideoGame/HauntedHotel'' games) "Uncle James."
429* It's at least somewhat implied through shared naming conventions that the ''VideoGame/AzureStrikerGunvoltSeries'' and ''VideoGame/GalGun'' take place in the same universe. Also, if you count ''VideoGame/MightyGunvolt Burst'' as canon, ''VideoGame/MightyNo9'' is also included. ''VideoGame/LuminousAvengerIX2'' seems to imply that [[spoiler:a version of the ''VideoGame/BlasterMasterZero'' trilogy (and the ''Metafight'' saga by extension)]] is also canon to the ''Gunvolt'' universe in a fashion.
430* Creator/CyberConnect2's ''VideoGame/LittleTailBronx'' universe is comprised of the ''VideoGame/TailConcerto'' and ''VideoGame/SolatoroboRedTheHunter'' action games, along with the ''Mamoru-kun'' educational browser game and the now-defunct ''Little Tail Story'' mobile RPG (both of which were [[NoExportForYou Japan-exclusive]]). The ''VideoGame/FugaMelodiesOfSteel'' series of tactical [=RPGs=] takes place [[{{Prequel}} several centuries prior]] to any of these other games, and is [[spoiler:set in the same location as ''Solatorobo'']].
431* DRAGO Entertainment focuses on developing simulator-style games which have started to form a common continuity. ''VideoGame/GasStationSimulator'' possesses the most obvious connections, as playing it along with its sister games ''Road Diner Simulator'' and ''Motel Simulator'' will [[OldSaveBonus bring bonuses]] to the table, but they also sneak in nods to otherwise unrelated products, such as saying that [[BrattyHalfPint Dennis]] grew up, moved out of the desert, and started the food truck business seen in their game ''Food Truck Simulator''.
432[[/folder]]
433
434[[folder:Visual Novels]]
435* ''VisualNovel/SchoolDays'', its sequels, and several other related visual novels are all part of a shared setting called the Characters/OverflowUniverse. Nearly every character is part of the same TangledFamilyTree, due to the actions of a certain serial womanizer/rapist.
436[[/folder]]
437
438[[folder:Web Animation]]
439* ''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 series). Now that Nickel is a regular character in ''BFDIA'', it's unknown if this is still the same Nickel from ''II''. Many ObjectShows also apparently share the same universe, as seen through {{Crossover Punchline}}s and [[CrossoverCameo cameos]], due to how close-knit the Object Show Community is.
440* ''WebAnimation/HazbinHotel'' and ''WebAnimation/HelluvaBoss'', given they were both made by Vivienne "Vivziepop" Medrano. Both series taking place in Hell, with a few instances of characters and scenarios being referenced.
441* ''WebAnimation/SonicForHire'' and ''WebAnimation/MegaManDiesAtTheEnd'' share the same universe, characters from each series make an appearance in a few episodes and there was {{Crossover}} between the two.
442* ''WebAnimation/IfTheEmperorHadATextToSpeechDevice'' shares a universe with several other videos made by the creator's friends, known as the TTS-Verse. [[https://www.youtube.com/playlist?list=PLyiDf91_bTEhDRwqQfqVwaKFeBaTVesHh A mostly complete playlist of all TTS-Verse videos can be found here.]]
443[[/folder]]
444
445[[folder:Webcomics]]
446* Webcomics tend to be chock full of {{Crossover}}s and [[ShoutOut Shout-Outs]], but very few non-SpinOff comics have Shared Universes. Among those that do:
447** ''Webcomic/BadlyDrawnKitties'' and ''Webcomic/BetterDays'' and ''Webcomic/SabrinaOnline'' all crossed over via the characters Lucy Koneko and Zig Zag, although various author dramas try to retcon this out of existence.
448** ''Webcomic/SomethingPositive'' and...
449*** ''Webcomic/QueenOfWands[=/=]Webcomic/PunchAnPie''
450*** ''Webcomic/GirlsWithSlingshots'' (and by extension, ''Webcomic/AllNewIssues'')
451*** ''Webcomic/PennyAndAggie''
452** ''Webcomic/{{Melonpool}}'' and the Webcomic/WalkyVerse
453*** In fact, all of the above apparently share a universe now, since characters from ''Something Positive'' and ''Girls with Slingshots'' have appeared in ''[[Webcomic/WalkyVerse Shortpacked!]]''.
454*** ''Webcomic/QuestionableContent'' as well, though mainly as the odd cameo (and an implied spacewarp between the Shortpacked store and Coffee of Doom, which is actually pretty reasonable by QC standards at least - it's since been established that the coffee shop near Shortpacked which has the same layout, staff, clientele and espresso dinosaur as Coffee of Doom is called Coffeeright Theft).
455*** Questionable Content also shows Kim Ross, cybernetic protagonist of Webcomic/DresdenCodak, laughing at Pintsize's mishaps in an IRC.
456*** The pre-reboot version of ''Webcomic/{{Zortic}}'' was also part of the Melonpool-verse. Ralph and Splink were officially half-brothers. This hasn't been mentioned since the reboot.
457*** [[Webcomic/{{Melonpool}} Melonpool, Ralph,]] [[Webcomic/{{Zortic}} Splink, and Zortic]] have all appeared in ''Webcomic/TheInexplicableAdventuresOfBob'' Aparently Voluptua knows Ralph and Splink's family.
458** ''[[http://www.nekothekitty.net/ Neko The Kitty]]'' and ''[[http://www.catharsiscomic.com/ Catharsis]]'' not only share a universe, they share an apartment building.
459** ''Webcomic/TheWotch'' and ''Webcomic/TheAccidentalCentaurs''
460** Ryan North believes that his ''Webcomic/DinosaurComics'' and Andrew Hussie's ''Webcomic/{{Homestuck}}'' share a universe.
461*** Hell, with the cornucopia of Fanon and [[FanWebcomics fansessions]] that have sprung up, it can be argued that Paradox Space itself is a shared universe, albeit one where only the creator has official rights to it.
462** The Webcomic/InternationalComicContinuity was created specifically to make a SharedUniverse.
463** ''Webcomic/EerieCuties''[=/=]''Webcomic/MagickChicks'' and ''Webcomic/VampireCheerleaders''[=/=]''Webcomic/ParanormalMysterySquad'' take place in the same universe, as evidenced by Steph and Layla's bonded hairpins and WordOfGod. However, the Delacroixes and Lori's coven are different breeds of vampire following slightly different rules, and Charlotte is a ''very'' different kind of witch than Mel's coven, who for as-yet-unexplained reasons are considered cryptids while Charlotte (like the [[HeroAcademy Artemis Academy]]'s magical cadets and espers) is human.
464* The ''Webcomic/{{Sunstone}}'' and ''Webcomic/BloodStain'' online comics are made by a husband-and-wife pair. Each comic is separate in story, but the characters interact with each other in a FictionalVideoGame named ''Moonstone Gate''.
465* ''Webcomic/HeroesUnite'' brought together existing superhero comics Webcomic/{{Energize}}, Webcomic/{{Hellfire}} and Webcomic/{{Acrobat}}[[note]]Acrobat is a special case: Acrobat characters appear repeatedly in the HUniverse despite the Acrobat series maintaining its own separate continuity. Essentially, the HUniverse uses identical alternate versions of the Acrobat characters.[[/note]] into a single universe (nicknamed the HUniverse) as well as introducing new HUniverse character Webcomic/{{Bombshell}} who launched her own series simultaneously. As time went on, more existing comics became part of the HUniverse, including Webcomic/BlueJay, Webcomic/{{SHELL}} and Webcomic/VoraPrincessOfTheSkies amongst others.
466* ''Webcomic/AgentsOfTheRealm'' and ''Webcomic/RadioSilence''. Norah (the protagonist of the former) and Matt (a main character of the latter) are cousins, and have been seen video chatting with each other in their respective comics.
467* Pretty much every ''Franchise/{{Kirby}}'' {{Fan Webcomic|s}} seems to take place in the same multiverse, as several fan comics have had crossovers with one other, whether as a story arc or a cameo.
468** ''Webcomic/KirbyAdventure'' has had two crossover arcs with ''[[http://www.smackjeeves.com/comicprofile.php?id=69796 Kirby's Dream Adventure]]'' and one with ''[[http://www.smackjeeves.com/comicprofile.php?id=91583 20 Times Kirby]]'', while ''Webcomic/KirbyTalesInDreamland'' has had crossovers with ''[[http://www.smackjeeves.com/comicprofile.php?id=157179 Kirby's Dream Experience]]'' and ''Webcomic/KirbyCardClash''.
469** ''Kirby Adventure'' at one point also had Raize and Hali trying to find the ''Kirby's Dream Adventure'' dimension to [[spoiler:ask Kaaby to help them rebuild their base after it gets destroyed during the events of "Infiltration"]], but their interdimensional portal transporter has a few problems and keeps sending them to the wrong dimensions, including ''[[https://www.smackjeeves.com/comicprofile.php?id=115693 Kirby: The Dee Army]]'', ''[[https://www.smackjeeves.com/comicprofile.php?id=134085 Kirby's Dream Land If... - Kirby of the Nuclear Winter]]'', ''[[http://www.smackjeeves.com/comicprofile.php?id=46154 Kirby's Dreamland Adventures]]'', ''[[https://www.smackjeeves.com/comicprofile.php?id=144357 Kirby Super Deluxe]]'', ''[[http://www.smackjeeves.com/comicprofile.php?id=90652 Kirby Fun Fest]]'', ''Kirby Arena'', ''[[http://www.smackjeeves.com/comicprofile.php?id=148273 Dumbity: Kirby's Fantastic Adventure]]'', ''[[http://www.smackjeeves.com/comicprofile.php?id=141985 Kirbyware, Inc. : Mega Minigame$!]]'', ''[[http://www.smackjeeves.com/comicprofile.php?id=25724 A Kirby Komic]]'', and ''Kirby's Dream Experience''.
470--->'''NAVO''': NAVO not get references.
471** There are also cases where a character from one comic gets sent to another, with [[spoiler:Master Green]], the ArcVillain from ''Kirby Adventure'''s "Master of Puppets" arc, becoming a recurring character in ''Kirby's Dream Adventure'', and " " from ''Kirby Tales in Dreamland'' accidentally getting sent to ''Kirby Card Clash'' by the latter comic's AuthorAvatar, with " "'s character arc there involving the characters figuring out how to send him back to his home dimension, eventually causing the above mentioned crossover arc with ''Tales in Dreamland''.
472* In terms of ''Webcomic/MSPaintAdventures'' comics, ''Webcomic/{{Jailbreak}}'' and ''Webcomic/BardQuest'' take place in the Realm of Imagination of ''Webcomic/ProblemSleuth''. ''Webcomic/{{Homestuck}}'' is the only adventure to not make it entirely clear whether it takes place in the same world as the previous ones, though ''Problem Sleuth'' exists in-universe as a ShowWithinAShow that the human cast references plenty of times. [[spoiler:''Webcomic/HomestuckBeyondCanon'', on the other hand, brings some of the characters back through the use of a Fenestrated Wall.]]
473[[/folder]]
474
475[[folder:Web Original]]
476* ''WebVideo/AitorMolinaVs'' and ''WebAnimation/{{Retropokon}}'' usually crossover with each other. With Lemon Emon, Pesadillas del Infierno, El Rincón de [=LonkPlays=] and others in animated specials.
477* By definition, roleplaying boards such as ''Roleplay/SurvivalOfTheFittest'' are Shared Universes, since each handler has his own spin on the story.
478* Many [[http://www.teleread.org/category/paleo-e-books/ Internet writing circles]] take the form of shared universes. Some such universes have been around continuously since the mid-1980s.
479* The Randomverse contains multiple roleplays run by different people. They include ''Roleplay/TheDeathSeries'', ''Roleplay/TheInsaneQuestOfUnfathomableRandomness'', ''Roleplay/SmileForTheCamera'', and ''Roleplay/TVTropesTheAdventure''.
480* Jason Bortz, M. S. Patterson, and Christopher Wright share a universe informally titled "The Foldspace Universe." It's the setting for ''Literature/PayMeBug'', among others.
481* "In My World" and "Inspector Dan Rather" seem to take place in the same over-the-top-ridiculous universe, although they are told from very different points of view and rarely overlap. [[http://iowahawk.typepad.com/iowahawk/2004/09/rather_blames_r.html The only "Inspector Dan Rather" story not told from Rather's delusional point-of-view]] seems to confirm this.
482* Several "imprints" on the superhero fiction newsgroup rec.arts.comics.creative, notably the ''Literature/LegionOfNetHeroes'' and ''Literature/AcademyOfSuperheroes''.
483* The WebVideo/{{Metaverse}} is a slowly developing example, due to being comprised of live action videos, mostly made on a zero dollar budget.
484* WordOfGod has it that ''WebVideo/TheAutobiographyOfJaneEyre'' is in the same verse as ''WebVideo/TheLizzieBennetDiaries'', and by extension, other Pemberley Digital productions.
485* The Website/ChannelAwesome Universe which consists of all the website's shows: WebVideo/AskThatGuyWithTheGlasses, WebVideo/AtopTheFourthWall, WebVideo/BadMovieBeatdown, WebVideo/TheCinemaSnob, WebVideo/DiamandaHagan, WebVideo/FamiliarFaces, WebVideo/JesuOtaku, WebVideo/TheNostalgiaChick, WebVideo/TheNostalgiaCritic, WebVideo/ThatDudeInTheSuede, WebVideo/WhatTheFuckIsWrongWithYou, WebVideo/TheSpoonyExperiment, and numerous others, as well as ''WebVideo/TheAngryVideoGameNerd''. All of this comes to a head in ''WebVideo/ToBoldlyFlee'', which ends up establishing a cosmic lore behind the universe all these internet critics reside in. Otherwise, ''WebVideo/AtopTheFourthWall'' is ''the'' show that actively explores and plays with the fact that it and other review shows take place within a shared universe and creates storylines around it.
486** Can be [[https://animatiom.tumblr.com/post/142435553737/the-reviewaverse-aka-channel-awesome taken]] even further accounting non-TGWTG crossovers.
487* 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 Website/SCPFoundation and at least some of Franchise/TheSlenderManMythos may be part of it too.
488* The Website/SCPFoundation takes place in the same universe as Website/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.
489* The webseries of ''Franchise/TheSlenderManMythos'', with the exception of ''WebVideo/MarbleHornets'', take place in the same universe. For example, HABIT, the main antagonist of ''WebVideo/EverymanHybrid'' also causes trouble in ''WebVideo/TribeTwelve'' and ''WebVideo/MLAndersen0'', which is just one of many things connecting all of the works together.
490* ''WebVideo/MrCoat'': Because of numerous cameos, he's part of the Reviewaverse.
491[[/folder]]
492
493[[folder:Western Animation]]
494* ''WesternAnimation/{{Rugrats}}'' (and by extension its sequel series ''WesternAnimation/AllGrownUp'') and ''WesternAnimation/TheWildThornberrys'' share a world, as shown in the theatrical crossover movie ''WesternAnimation/RugratsGoWild''.
495* ''WesternAnimation/FamilyGuy'' and ''WesternAnimation/TheClevelandShow'', along with ''WesternAnimation/AmericanDad'' each had an episode where a [[CrossThrough hurricane appeared and passed through the houses of their respective main characters]]. Since the Cleveland Show is a direct acknowledged spinoff in Family Guy itself, the casts have interacted in the other show many times. American Dad and Family Guy both treat each other as shows within their own series, but at the same time have featured various character cameos for the sake of a joke.
496* A subtle link exists among four of Hasbro, Marvel and Sunbow's MerchandiseDriven 1980s cartoons — the character of Hector Ramirez, a [[NoCelebritiesWereHarmed thinly veiled]] {{parody}} of Geraldo Rivera, appears in ''WesternAnimation/{{Inhumanoids}}'', ''WesternAnimation/GIJoeARealAmericanHero'', ''WesternAnimation/TheTransformers'' and ''WesternAnimation/{{Jem}}''; [[http://buzzdixon.com/media/the-many-faces-of-hector-ramirez/ his creator states that this forces them into the same universe]].
497** It goes deeper in that in some cases. In the third season of the ''Transformers'' cartoon, Autobot ally Marissa Faireborn has been explicitly stated to be the daughter of Joe's Flint and Lady Jaye.
498** Also, the episode "Only Human" featured a villain called "Old Snake," who was clearly Cobra Commander -- he has access to "synthoids," a technology originally seen in the ''G.I. Joe'' cartoon, and briefly yells "COBRA!" before collapsing into a coughing fit.
499** In ''WesternAnimation/TransformersAnimated'' The [=AllSpark=] Almanac II, Vector Prime (one of the original 13 Transformers, who Primus himself created; he chose Vector as his time/space defender) confirms that all these shows and ''C.O.P.S.'' (due to the Checkpoint/Beachhead connection noted above) take place in the ''Transformers G1'' continuity.
500* Since the ''WesternAnimation/LooneyTunes'' characters are the teachers to the ''WesternAnimation/TinyToonAdventures'' characters, this makes an obvious example.
501** ''WesternAnimation/{{Animaniacs}}'' also had characters from different segments cameo with each other, as well as cameos from ''Tiny Toons'' and ''Looney Tunes'', and it goes without saying for ''WesternAnimation/PinkyAndTheBrain'' as it's a spin-off of ''Animaniacs''. ''WesternAnimation/{{Freakazoid}}'' also popped in on ''Animaniacs'', the World's Oldest Woman and Lucky Bob from ''WesternAnimation/{{Histeria}}'' first appeared on ''Animaniacs'', and Brain made a voice cameo on ''WesternAnimation/RoadRovers''. Though, it does get to confusing territory with ''WesternAnimation/PinkyElmyraAndTheBrain'' when Elmyra adopts Pinky and Brain as pets with no mention of the events of ''Tiny Toon Adventures'' whatsoever (although WordOfGod has said that, as loose of continuity a lot of the shows have, ''Pinky, Elmyra & the Brain'' is the one show that is considered [[CanonDiscontinuity not canon]]).
502* While it's pretty obvious that ''WesternAnimation/DuckTales1987'' and ''WesternAnimation/DarkwingDuck'' share the same universe due to sharing one of the main characters, ''ComicBook/TheLegendOfTheChaosGod'' storyline in ''Magazine/DisneyAdventures'' also placed ''WesternAnimation/TaleSpin'', ''WesternAnimation/ChipNDaleRescueRangers'' and ''WesternAnimation/GoofTroop'' in it as well.
503** Something that raises the question is how this works in the case of ''WesternAnimation/ChipNDaleRescueRangers'' as normal anatomically correct humans are shown to exist in their world and the sentient animals are keeping TheMasquerade.
504** [[http://www.darkhorizons.com/ducktales-darkwing-arent-in-same-universe/ According to]] WordOfGod, ''Darkwing Duck'' and ''[=DuckTales=]'' are not in the same universe and the Launchpad [=McQuack=] that we see in one of the shows is just an alternate version.
505** Disregarding what ''The Legend of the Chaos God'' established (assuming it is canon), ''WesternAnimation/ChipNDaleRescueRangers'' is canonically established to be a separate universe from ''Darkwing'''s as shown in the episode "[[Recap/DarkwingDuckS1E40TwitchingChannels Twitching Channels]]". On the other hand, Tad Stone's claim that ''Darkwing'' and ''[=DuckTales=]'' do not share the same universe [[http://nerdist.com/the-darkwing-duck-creator-is-wrong-about-ducktales-shared-universe/ has been heavily contested using in-show evidence]].
506** Similarly, the new ''WesternAnimation/DuckTales2017'' seems to be establishing its own shared universe, with episodes referencing elements of ''WesternAnimation/DarkwingDuck'', ''WesternAnimation/TaleSpin'', and ''WesternAnimation/AdventuresOfTheGummiBears''.
507*** As of Season 3, we can add ''WesternAnimation/ChipNDaleRescueRangers'' and ''WesternAnimation/GoofTroop'' [[spoiler:and ''WesternAnimation/{{Gargoyles}}'']] , plus the rest of ''Darkwing Duck'' and ''[=TaleSpin=]''.
508*** Various {{Shout Out}}s and [[https://suspendersofdisbelief.tumblr.com/post/164411676861/do-you-ever-stay-up-late-making-something-stupid one fan-comic]] receiving ApprovalOfGod led many to believe that ''WesternAnimation/WanderOverYonder'' is also in the same universe, since both shows did have Frank Angones working on them.
509* The ''Franchise/DCAnimatedUniverse'' includes ''WesternAnimation/BatmanTheAnimatedSeries'', ''WesternAnimation/SupermanTheAnimatedSeries'', ''WesternAnimation/BatmanBeyond'', ''WesternAnimation/TheZetaProject'', ''WesternAnimation/StaticShock'' and ''WesternAnimation/JusticeLeague''.
510* It's implied by Hal's appearance and [[spoiler:Aya]] in ''WesternAnimation/JusticeLeagueAction'' that the show takes place after ''WesternAnimation/GreenLanternTheAnimatedSeries'', but it's not certain, especially due to some inconsistencies such as in characterization.
511* WordOfGod confirms that ''WesternAnimation/TransformersPrime'' and ''WesternAnimation/TransformersRescueBots'' take place in the same universe. This was finally confirmed in-universe by the ''Rescue Bots'' episode "Bumblebee to the Rescue". It's also the reason ''Rescue Bots'' is set on an island and ''Prime'' is set in the American southwest. This allows the two shows to reference each other and interact while still being separate.
512** ''WesternAnimation/TransformersRobotsInDisguise'' is a sequel to ''Prime'', and thus shares the same universe as well. ''Rescue Bots'' final season solidified this with Bumblebee returning and now voiced by Will Friedle, as well as a direct crossover with RID's Sideswipe, with Blurr also making some appearances in ''Robots In Disguise'''s third season.
513* ''WesternAnimation/SpaceGhostCoastToCoast'' and its MorePopularSpinoff ''WesternAnimation/AquaTeenHungerForce'', as well as its less popular spinoffs ''The Brak Show'' and ''WesternAnimation/HarveyBirdmanAttorneyAtLaw''. Space Ghost has a cameo in the ''WesternAnimation/AquaTeenHungerForce'' movie.
514* Jorge Gutierrez [[WordOfGod has declared]] his works ''WesternAnimation/ElTigre'' and ''WesternAnimation/TheBookOfLife'' as sharing a universe and has made connections between characters from both works. For example, Manolo Sanchez's mother Carmen is the sister of Manny Rivera's great-grandfather Justice Jaguar. He would later confirm connections with ''WesternAnimation/MayaAndTheThree'' and the pilot ''WesternAnimation/CarmenGotExpelled'' as well; for example with La Muerte and Xibalba being related to several of the supernatural characters in the former and Carmen's school being the same one that the kids who visit the museum attend in the latter's case.
515* ''WesternAnimation/TeenageMutantNinjaTurtles2012'' and ''WesternAnimation/SuperRobotMonkeyTeamHyperforceGo'', due to various references and ''connections'' to the latter show in TMNT's fourth season, and the fact that Ciro Nieli worked on both shows.
516* While largely kept out of the shows proper, both Creator/{{Nickelodeon}} and Creator/CartoonNetwork have used this premise in many of their bumper-ads and video games. [[https://www.youtube.com/watch?v=r_1G0iWgGis Observe.]]
517* Craig Gerber's two shows, ''WesternAnimation/SofiaTheFirst'' and ''WesternAnimation/ElenaOfAvalor'' (a spinoff of ''Sofia the First''), are both in the same universe, known as the Ever Realm.
518** Sofia's amulet summons Franchise/{{Disney Princess}}es up to ''WesternAnimation/{{Frozen|2013}}'' (which is another story), no matter if they're from a future time period or from the "real world". One notable example is [[WesternAnimation/ThePrincessAndTheFrog Tiana]], who is from 1920's New Orleans and has to introduce herself to Sofia since she doesn't know who she is. WordOfGod implies that time in the Ever Realm and the "real world" run differently and that the present day of the Ever Realm in fact takes place in our equivalent of the 2010's. It's not clear if the stories of the princesses are considered fictitious and just brought to life by the Amulet or [[AllMythsAreTrue true, just somewhere else,]] in the Ever Realm.
519*** The tale of ''WesternAnimation/SleepingBeauty'' happened in the past, due to the appearances of the three fairies as well as Maleficent being mentioned as an infamous figure.
520*** Princess Amber is a fan of Rapunzel, which means that the events of ''WesternAnimation/{{Tangled}}'' are quite well known.
521*** In one episode, a character says that the story of a princess who could control ice is fairly well known in her area, and in the episode where Olaf is a guest star, Olaf mentions that he was just hanging out with Princess Anna just a while ago. Sofia has no idea what either of them are talking about, meaning that she's unfamiliar with the story of ''WesternAnimation/{{Frozen|2013}}''.
522** Merlin of ''WesternAnimation/TheSwordInTheStone'' appears.
523** WordOfGod is of the opinion that any of the Disney fantasy stories that aren't explicitly stated to take place in the real world take place in the Ever Realm.[[note]]Craig Gerber used the example of ''WesternAnimation/BeautyAndTheBeast'', which turns out to not work as an example, since Lumiere mentions they live in France, although the FridgeLogic of what the Beast is Prince of if he isn't the Prince of France is another can of worms.[[/note]]
524** The ''Sofia the First'' SeriesFinale reveals that the Ever Realm includes [[WesternAnimation/PeterPan Neverland]]. So if you wanted to, ''Sofia the First'' also takes place in the same universe as ''WesternAnimation/ReturnToNeverland'', the Franchise/DisneyFairies franchise, and ''WesternAnimation/JakeAndTheNeverLandPirates''.
525* ''WesternAnimation/HandyManny'' and ''WesternAnimation/SpecialAgentOso'' have a crossover episode. *WesternAnimation/DocMcStuffins, and then Doc [=McStuffins=] later meeting Franchise/WinnieThePooh and the other inhabitants of the Hundred Acre Wood.
526* ''WesternAnimation/{{Gargoyles}}'' was a failed attempt to start a shared universe. There were several plans for SpinOff series taking place in the same universe as ''Gargoyles'' that were never made, and several episodes were {{Poorly Disguised Pilot}}s for these spinoffs. There also were plans for a crossover with ''WesternAnimation/AtlantisTheLostEmpire'' that never happened. Eventually, on-and-off comic continuations years later let some of the spinoffs actually get made, ''ComicBook/GargoylesBadGuys'' and ''Gargoyles: Dark Ages''.
527* ''WesternAnimation/PhineasAndFerb'' and ''WesternAnimation/MiloMurphysLaw'', both created by Dan Povenmire and Swampy Marsh, with the latter retaining much of the former's staff. The second season has the two series crossover, from which point several characters from ''Phineas and Ferb'' begin making regular appearances on ''Milo Murphy's Law''. ''WesternAnimation/HamsterAndGretel'' is heavily implied several times to be within the same universe as well, albeit mainly through background details and the occasional cameo as the show is set in a different city.
528* It has been hinted at various points that ''WesternAnimation/TotalDrama'' is set in the same universe as ''WesternAnimation/{{Sixteen}}''. Lindsay mentions the Khaki Barn (a store featured in many episodes of ''6teen'') in an episode of ''World Tour'', while [=MacArthur=] of ''The Ridonculous Race'' name-dropped Jen from ''6teen'' as being her babysitter when she was six. ''WesternAnimation/{{Stoked}}'' is also implied to be part of this universe as well.
529* Creator/HannaBarbera-specific:
530** ''WesternAnimation/HarveyBirdmanAttorneyAtLaw'', a satirical sequel to ''WesternAnimation/Birdman1967'', is consisted of a cast from various Hanna-Barbera cartoons.
531** ''WesternAnimation/TheFlintstones'' and ''WesternAnimation/TheJetsons'' once had a crossover special.
532** In the ''Franchise/ScoobyDoo'' franchise, many of its iterations post-''WesternAnimation/ScoobyDooWhereAreYou'' are supposed to be sequels to the original series, although not all of these sequels share the same universe with ''each other''.
533*** In ''WesternAnimation/ScoobyDooMysteryIncorporated'', we get cameos from the cast of ''WesternAnimation/JonnyQuest'', a feral and jailed WesternAnimation/YogiBear, and has an episode featuring the [[WesternAnimation/DynomuttDogWonder Dynomutt and Blue Falcon]]. However, these seem to be BroadStrokes of them. In addition, one episode is a crossover with ''WesternAnimation/SpeedBuggy'', ''WesternAnimation/CaptainCavemanAndTheTeenAngels'', ''WesternAnimation/{{Jabberjaw}}'', and ''WesternAnimation/TheFunkyPhantom'', although this turns out to be a FeverDreamEpisode and all of them except for ''The Funky Phantom'' are [[ShowWithinAShow Shows Within A Show]]. [[spoiler:The show ends with the implication that it's actually a StealthPrequel to [[WesternAnimation/ScoobyDooWhereAreYou the original series]], although WordOfGod later clarified that it lead into a BroadStrokes of the original series. Due to numerous canon inconsistencies such as the portrayal of the Gang's families, the ''Mystery Incorporated'' canon can't fit with the numerous sequel series, which are where most of the crossovers take place.]]
534*** ''WesternAnimation/TheNewScoobyDooMovies'' featured numerous crossovers with other cartoons, including with ''WesternAnimation/JosieAndThePussycats'' (although interestingly, as ''WesternAnimation/TheArchieShow'' was produced by Creator/{{Filmation}}, there was never a crossover between ''Josie'' and ''Archie'', so we can't say if the two take place in the same universe as they usually do), ''Series/TheAddamsFamily'', ''WesternAnimation/TheHarlemGlobetrotters'', ''WesternAnimation/{{Jeannie}}'', ''WesternAnimation/SpeedBuggy'', and ''WesternAnimation/TheNewAdventuresOfBatman''.
535*** ''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'', ''WesternAnimation/PeterPotamus', 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?
536*** In the direct-to-DVD continuity, there's another ''Scooby-Doo/Batman'' crossover, ''WesternAnimation/ScoobyDooAndBatmanTheBraveAndTheBold'', except with the ''WesternAnimation/BatmanTheBraveAndTheBold'' incarnation. Interestingly, in ''The Brave and the Bold'', there was an episode where Batman (in the artstyle of ''The New Adventures of Batman'') teamed up with the original series' version of Mystery Incorporated.
537*** Also in the direct-to-DVD continuity, in ''WesternAnimation/ScoobyDooWrestlemaniaMystery'', there's a cameo appearance from the female members of the Team from ''WesternAnimation/{{Young Justice|2010}}''. 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''.
538*** ''WesternAnimation/JohnnyBravo'' has crossed over with ''Scooby-Doo'' and ''The Flintstones''.
539*** Subverted. ''Scooby-Doo, Where Are You!'' is a cartoon show in ''Series/{{Supernatural}}'', but due to supernatural shenanigans, the main characters of ''Supernatural'' cross over into an episode of ''Scooby-Doo, Where Are You!'' in a special.
540*** The Grimwood Girls from ''WesternAnimation/ScoobyDooAndTheGhoulSchool'' appeared in an episode of ''WesternAnimation/OKKOLetsBeHeroes'', which also had a crossover with ''WesternAnimation/CaptainPlanetAndThePlaneteers'', and ''OK KO'''s GrandFinale revealed main character Mr. Gar's hometown is Monte Macabre, the setting of ''WesternAnimation/VictorAndValentino'', placing them all in the same universe.
541*** ''WesternAnimation/{{Jellystone}}'', much like ''Laff-A-Lympics'', features a multitude of characters from Hanna-Barbera shows living in the same town together. In addition to many of the above-mentioned shows, we also get appearances from WesternAnimation/JonnyQuest and WesternAnimation/{{Shazzan}}.
542* ''WesternAnimation/TheLoudHouse'' & ''WesternAnimation/TheCasagrandes'' take place in the same universe, obviously with the latter being a spin-off of the former and Ronnie Anne and Bobby starting as supporting characters on ''The Loud House''.
543* ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'' and ''WesternAnimation/EvilConCarne'' are sister shows. ''Billy and Mandy'' has also crossed over with ''WesternAnimation/ThePowerpuffGirls1998'' and ''WesternAnimation/CodenameKidsNextDoor''.
544** In one episode of ''WesternAnimation/TheGrimAdventuresOfBillyAndMandy'', Billy unearths a HumanPopsicle [[WesternAnimation/TheFlintstones Fred Flintstone]].
545** The ''Codename Kids Next Door'' crossover began with Billy calling [[WesternAnimation/EdEddNEddy Eddy]], who suggests Billy calls the KND in the first place. There’s also several [[FreezeFrameBonus Freeze Frame Bonuses]] of [[WesternAnimation/DextersLaboratory various]] [[WesternAnimation/FostersHomeForImaginaryFriends other]] [[WesternAnimation/ThePowerpuffGirls Cartoon Network]] characters flying out of an explosion toward the end of the episode.
546* In ''Franchise/Ben10'' sequel ''WesternAnimation/Ben10Omniverse'', there's a crossover with ''WesternAnimation/TheSecretSaturdays''. During ''WesternAnimation/Ben10UltimateAlien'', Ben is also transported into the ''WesternAnimation/GeneratorRex'' universe in one episode of the latter show, so they at least exist in the same multiverse.
547* ''WesternAnimation/FairlyOddParents'' and ''WesternAnimation/JimmyNeutronBoyGenius'' is an odd example. While it's stated that they live in different universes, both can travel through the other show, Timmy thanks to his fairies and Jimmy because of his inter-dimensional travelling engine. Making it an instance of [[TheMultiverse Shared Multiverse]].
548* ''WesternAnimation/{{Ultimate Spider|Man2012}}-Man'', ''WesternAnimation/HulkAndTheAgentsOfSMASH'', and the first four seasons of ''WesternAnimation/AvengersAssemble'' are in the same continuity (Earth-12041).
549** Season 5 of ''Avengers Assemble'', ''WesternAnimation/MarvelsSpiderMan'', and ''WesternAnimation/{{Guardians of the Galaxy|2015}}'' are in Earth-17628.
550** Before that, there was [[https://marvel.fandom.com/wiki/Earth-8096 Earth-8096]], a prototype universe of sorts designated towards several Marvel cartoons produced near the turn of 2010, including ''WesternAnimation/{{Wolverine and the X|Men2009}}-Men'', ''WesternAnimation/TheAvengersEarthsMightiestHeroes'', ''WesternAnimation/ThorTalesOfAsgard'' and ''WesternAnimation/HulkVs''. Notably, while they did share similarities in terms of animation styles and even voice actors, none of these works ever fully crossed over with any intersecting storylines, likely due to ''Wolverine's'' early cancellation, and the eventual end of ''Earth's Mightiest Heroes'' to make way for ''Avengers Assemble''. As their names in the titles implied, Wolverine, the Hulk and Thor were recurring figures among these works, with the former two's first encounter being depicted twice.
551* The final episode of ''WesternAnimation/CampLazlo'' implies that the show takes place in the same universe as ''WesternAnimation/RockosModernLife'' with the appearance of a character who is clearly meant to be an older version of Heffer.
552* ''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'', and all three feature the involvement of Creator/AlexHirsch (who created ''Gravity Falls'').
553** ''The Owl House'' to ''Gravity Falls'': Eda is mentioned as using "Marilyn" as an alias in the Human World, the same name as Grunkle Stan's purported ex-wife, whose description matches Eda's to a T. Further, the mechanics/depiction of memory-reading and [[MentalWorld mindscapes]] in ''Owl House'' is beat-per-beat identical to that of ''Gravity Falls''.
554** ''Gravity Falls'' to ''Amphibia'': Frog versions of Grunkle Stan and Soos appear in one episode of ''Amphibia'', all the way down to having the same names and [[Creator/AlexHirsch voice actor]], with the clear implication that they're [[AlternateSelf the amphibian world's versions of the characters]] from ''Gravity Falls''.
555** ''Amphibia'' to ''The Owl House'': [[Recap/AmphibiaS3E15IfYouGiveAFrogACookie "If You Give A Frog A Cookie"]] and [[Recap/TheOwlHouseS2E21KingsTide "King's Tide"]] confirm the ''Amphibia'' and ''The Owl House'' connection; the former features a blurry picture of the Owl House itself taken through a flawed dimensional portal, and the latter has a WhamShot of a news article about the events of the series finale of ''Amphibia'' on Camila Noceda's [=iPad=], complete with a photo of Anne Boonchuy.
556* ''WesternAnimation/SpongeBobSquarePants'', along with its two spin-offs, ''WesternAnimation/KampKoral'' and ''WesternAnimation/ThePatrickStarShow'', are implied to take place in a single universe, despite their conflicting canonicity. The shows regularly intersect with one another, with ''Kamp Koral''’s Narle and Nobby appearing in ''[=SpongeBob=]'' twice, Cecil, Bunny and [=GrandPat=] of ''The Patrick Star Show '' appearing in one episode of ''Kamp Koral'', and [=GrandPat=] briefly visiting the original ''[=SpongeBob=]'' universe once.
557* In the late 2010s, there were plans to create a shared universe of adult animated series based on characters from Creator/MarvelComics for Creator/{{Hulu}}. The planned shows were to be based around [[Characters/MarvelComicsAIM M.O.D.O.K.]], ComicBook/HowardTheDuck, ComicBook/{{Dazzler}} & ComicBook/{{Tigra}}, and ComicBook/HitMonkey, with the four shows culminating in a crossover miniseries titled ''The Offenders''. However, as the shows were being developed, producer Creator/MarvelTelevision was absorbed into Creator/MarvelStudios, causing the plans to be scrapped. Ultimately, ''WesternAnimation/MODOK2021'' and ''WesternAnimation/HitMonkey'' were the only two shows to make it to air while the rest were canceled. While the shows did share a universe, with ''Hit-Monkey'' referencing events from ''M.O.D.O.K.'' in a news scroll, their differing animation styles and tones (''M.O.D.O.K.'' being a stop motion DomCom and ''Hit-Monkey'' being a more serious 2D action show) made a crossover unlikely. Compounding this issue is the fact that ''M.O.D.O.K.'' was canceled after one season while ''Hit-Monkey'' was renewed but moved production to Creator/TwentiethTelevisionAnimation with the Marvel branding being removed.
558* Several episodes of ''WesternAnimation/LiloAndStitchTheSeries'' feature crossovers with ''WesternAnimation/AmericanDragonJakeLong'', ''WesternAnimation/TheProudFamily'', ''WesternAnimation/{{Recess}}'', and ''WesternAnimation/KimPossible'', implying they all live in the same world. This makes ''Franchise/LiloAndStitch'' the only work in the ''Franchise/DisneyAnimatedCanon'' to share a universe with the ''Franchise/DisneyChannelAnimatedUniverse''.
559[[/folder]]

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