History Main / SharedUniverse

* Creator/CyberConnect2's ''VideoGame/LittleTailBronx'' universe is comprised of the ''VideoGame/TailConcerto'' and ''VideoGame/{{Solatorobo}}'' 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'']].

* ''WesternAnimation/{{Amphibia}}'', ''WesternAnimation/TheOwlHouse'' and ''Franchise/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'').

* ''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'').

* Several "imprints" on the superhero fiction newsgroup rec.arts.comics.creative, notably the ''Literature/LegionOfNetHeroes'' and'' WebOriginal/AcademyOfSuperheroes''.

* The WebOriginal/{{Metaverse}} is a slowly developing example, due to being comprised of live action videos, mostly made on a zero dollar budget.

* The Website/ThatGuyWithTheGlasses 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.

* 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.

* 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''.

** 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 Rally-X]]'' showing up in several other games for instance), this may just be more of a tribute rather than an actual connection.

* 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]] ''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.

* ''Franchise/{{Tekken}}''

* 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.

** ''Tekken'' is canon to ''VideoGame/{{Xenosaga}}'', since Shion Uzuki can receive an email from Kazuya in ''Episode I'' showing him in ''Tekken 4'', which would 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.]]

* 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/{{Aim}} M.O.D.O.K.]], ComicBook/HowardTheDuck, ComicBook/{{Dazzler}} & [[Characters/TheAvengers 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.

** ''Tekken'' is canon to ''VideoGame/{{Xenosaga}}'', since Shion Uzuki can receive an email from Kazuya in ''Episode I'' showing him in ''Tekken 4'', which would 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.]]

* Through CanonWelding, and Akuma's GuestFighter status, it's suggested that ''Franchise/{{Tekken}}'' and ''Franchise/StreetFighter'' are set in the same universe (or, at the very least, a version of ''Street Fighter'' exists in the ''Tekken'' universe). 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.

* The ''VideoGame/SoulSeries'' takes place in the distant past of the ''Franchise/{{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.

* ''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. Several episodes of ''Gargoyles'' were {{Poorly Disguised Pilot}}s for these spinoffs. ''ComicBook/GargoylesBadGuys'' was the only one of these spin offs that did get made. There also were plans for a crossover with ''WesternAnimation/AtlantisTheLostEmpire'' that never happened.

** ''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 and/or further inter-title connectivity.

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

* ''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. Several episodes of ''Gargoyles'' were {{Poorly Disguised Pilot}}s for these spinoffs. ''ComicBook/BadGuys'' was the only one of these spin offs that did get made. There also were plans for a crossover with ''WesternAnimation/AtlantisTheLostEmpire'' that never happened.

** ''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 Words'' 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 appears as enemies in the first stages of ''Forgotten Worlds'').

** 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.)

** ''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'' exists as a video game, it is worth noting ''Street Fighter 6'' director Takayuki Nakayama has stated in twitter that Ginzu's father Gou is Kimberly's senpai as Guy's student, so it is very possible he may show up in World Tour mode.
** ''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 UsefulNotes/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 ''Street Fighter IV'' when Ibuki's high school turned out to be other than Taiyo High, which plus the detail Sakura's blood type was different 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.

** ''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 Words'' 2nd 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 littles 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 appears as enemies in the first stages of ''Forgotten Worlds'').
** ''Street Fighter V'' director Takayuki Nakayama has stated in the design notes of 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.

** ''KOF'' itself is an AlternateContinuity of the joint ''VideoGame/ArtOfFighting[=/=]VideoGame/FatalFury'' timeline [[SchrodingersCast by virtue of]] Geese Howard being KilledOffForReal in 1995's ''Real Bout Fatal Fury'' but sporadically appearing in ''KOF'' alive and well starting [[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 ''KOF XII''.

** 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 ''[=WarioWare=] Gold'' 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.

* ''Literature/ChroniclesOfNarnia'': Thanks to a single throwaway line, we know that the series take place in the same universe as the Literature/SherlockHolmes stories. In ''The Magician's Nephew'', 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.

* 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 then made a [[https://www.youtube.com/watch?v=POXz8rpsq_E prologue]] that features cameos of the regional professors from all four fakemon regions.

* As well as the ''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}}''.

* While not officially named, [[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 other Poketuber's original 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.

* ''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 charaters.

** The Grand Duke and The King from ''WesternAnimation/{{Cinderella}}'' make ''[[FreezeFrameBonus very]]'' brief cameos in ''WesternAnimation/TheLittleMermaid'', and a painting of Princess Aurora and Prince Phillip from ''WesternAnimation/SleepingBeauty'' can be seen at one point in Prince Eric's castle.

** Similarly, ''WesternAnimation/HerculesTheAnimatedSeries'' features a crossover where WesternAnimation/{{Hercules}} and WesternAnimation/{{Aladdin}} meet, and Ursula from ''WesternAnimation/TheLittleMermaid'' cameos in an episode featuring Poseidon.

** Phase 4: The current phase; 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'', ''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'', ''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'').
** Phases 5 and 6 have also been announced. Phase 5 will launch with the full reveal of the MythArc BigBad in ''Film/AntManAndTheWaspQuantumania'', while Phase 6 will resolve said MythArc with another ''Avengers'' duology.