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[[quoteright:350:[[VideoGame/MarvelVsCapcom3 https://static.tvtropes.org/pmwiki/pub/images/1179056_ultimate_marvel_vs_capcom_3_xbox_one_front_cover.png]]]]

{{Crossover}}s in video games.

[[index]]
* ''Crossover/AmongUs''
* ''Crossover/DeadByDaylight''
* ''Crossovers/FallGuys''
* ''Crossover/IdentityV''
* ''Crossover/TouhouProject''
[[/index]]
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* ''7.62 High Caliber'' has a mod named ''Blue Sun'', which turns the native game in a cross-over with ''VideoGame/JaggedAlliance 2''[[note]]''7.62 High Caliber'' being the official sequel of ''Brigade E5: New Jagged Union'', CreatorDrivenSuccessor to the ''Jagged Alliance'' series[[/note]]: there are dialog lines mentionning the country Arulco (''7.62 High Caliber'' being set in another BananaRepublic suffering from a civil war), several dozen of mercenaries from the ''Jagged Alliance'' series can be hired, the weaponseller Bobby Ray can be contacted by radio, a sidequest involves Elliot who fled Arulco to escape from Deidrenna's constant brutality, etc.
* ''VideoGame/AdventureQuestWorlds'' has a crossover event with ''Webcomic/CtrlAltDel''.
** ''[=AdventureQuest=] Worlds'' itself is one huge mix of the three main AE games, ''VideoGame/AdventureQuest'', ''VideoGame/DragonFable, and ''VideoGame/MechQuest. Heroes and villains from all three have been featured in the game, although arguably the most evil villain of all three gets killed off right in the beginning of the game.
** Before that, ''[=DragonFable=]'' and ''[=AdventureQuest=]'' had a crossover mission.
** Also, ''[=AdventureQuest=]'' and ''VideoGame/WarpForce'' are in the same period of time, but it began with a crossover from ''[=AdventureQuest=]''.
* ''VideoGame/AlchemistCode'' has a lot of collaborations and crossovers with famous series such as ''Anime/FateStayNight'', ''VideoGame/{{Disgaea}}'', ''Anime/FullmetalAlchemist2003'' and so on. However, the most notable crossover is with the game ''VideoGame/PhantomOfTheKill'' as not only they frequently collab with each other, but also they were published by the same company that published them, Fuji Games for Japanese version while Gumi Inc. is for the Global version.
* ''VideoGame/AliensVsPredator''. The Atari Jaguar game and the two PC games are considered classics in the {{F|irstPersonShooter}}PS genre.
* ''VideoGame/AllStarFighters'' is a crossover of the various games made by Creator/D3Publisher from its Simple series of budget games, of which the most notable include the VideoGame/{{Onechanbara}} series and VideoGame/EarthDefenseForce series.
* The ''VideoGame/AngryBirds'' series has a couple of these.
** ''Angry Birds Rio'' is one with [[WesternAnimation/{{Rio}} the film]], as the poachers capture the birds, who escape and set out to rescue Blu and Jewel. Subsequent levels are set in the movie's Rio de Janiero and have the birds targeting the marmosets or bird cages instead of the usual pigs, and boss battles with Mauro and Nigel, the film’s villains. Blu and Jewel are also available as ammunition in some levels.
** The "Red's Mighty Feathers" episode in the original game is one with ''VideoGame/BadPiggies'', as Red tries to bust the pigs' various contraptions to keep them from making off with an egg.
** There's also ''Angry Birds Franchise/StarWars'' and ''Angry Birds Franchise/{{Transformers}}''.
* Creator/{{Taito}} combined two of its most famous series to create ''VideoGame/{{Arkanoid}} vs. VideoGame/SpaceInvaders.''
* ''VideoGame/AstroBoyOmegaFactor'' is a crossover action game of ''Anime/AstroBoy'' and other works by Creator/OsamuTezuka.
* ''VideoGame/AzureStrikerGunvoltSeries'':
** ''VideoGame/AzureStrikerGunvolt2'': In the Switch version, you can fight VideoGame/ShovelKnight by scanning his Toys/{{Amiibo}}.
** ''VideoGame/LuminousAvengerIX2'' has DLC boss battles against [[VideoGame/CogenSwordOfRewind Kohaku Otori]], [[VideoGame/DuskDiver Yang Yumo]], [[VideoGame/BlasterMasterZeroIII Jason Frudnick & Eve]], and [[VideoGame/GalGun Kurona]].
** ''VideoGame/MightyGunvolt'' (aka ''Gal*Gunvolt'') is, as reflected in both titles, a crossover between ''Gunvolt'', ''VideoGame/GalGun'', and ''VideoGame/MightyNo9''. Hence, characters and bosses from all three series show up.
* In the Story Mode of ''VideoGame/BattlePrincessMadelyn'', Don Ramiro of fellow VideoGame/{{G|hostsNGoblins}}nG-alike ''VideoGame/MalditaCastilla'' shows up to give Madelyn advice and aid when she travels to his native Spain.
* ''VideoGame/{{Battletoads}} and VideoGame/DoubleDragon: The Ultimate Team'' was one of the earliest intercompany video game crossovers, which was made possible by the fact that both series were published in America and Europe by Tradewest. The game itself is really a ''Battletoads'' game with ''Double Dragon'' characters as guest stars (some of which were misnamed).
* ''VideoGame/BlazBlueCrossTagBattle'' is a TagTeam fighting game that initially featured characters from ''Franchise/BlazBlue'', ''VideoGame/Persona4Arena'', ''VideoGame/UnderNightInBirth'', and ''WebAnimation/{{RWBY}}''. Later updates added characters from ''VideoGame/ArcanaHeart'', ''VideoGame/SenranKagura'', and ''VideoGame/AkatsukiBlitzkampf''.
* Blockland has a Platform/{{Roblox}}ian add-on that can make it be this.
* ''VideoGame/BraveFrontier'' has recruitable characters from ''VideoGame/ChainChronicle'' and vice versa. The characters may come from separate universes, but they are naturally under the same game ownership of Gumi.
* Creator/{{Capcom}} has [[VideoGame/CapcomVs something of a history]] with these, with ''VideoGame/MarvelVsCapcomInfinite'' being the latest installment.
* Capcom and Valve are coming together to have a crossover of sorts in each other's games. For Valve, they are bringing Rochelle, Coach, Ellis and Nick (the survivor characters) to ''VideoGame/ResidentEvil6'' on the PC in Mercenaries mode. For Capcom, they are bringing the Lepotitsa, Napad and Ogroman as special infected counterparts to Valve's special infected for ''VideoGame/Left4Dead2''.
** Way before that, thanks to [[GameMod players modding the game]], you can have various characters from many other games be playable within ''Left 4 Dead'' and ''Left 4 Dead 2''.
* ''VideoGame/CartoonNetworkPunchTimeExplosion'' features characters from across Creator/CartoonNetwork's wide selection of shows all duking it out, ''VideoGame/SuperSmashBros'' style.
* ''VideoGame/ClubPenguin'' has various parties focused around other Creator/{{Disney}} works, where rooms are decorated themed around the work, party-exclusive rooms based on the work, outfits from the work are made available, and the characters are meetable. Some examples include Creator/MarvelComics, ''Franchise/StarWars'', ''Franchise/{{Frozen}}'', ''WesternAnimation/MonstersUniversity'', and ''Franchise/TheMuppets''.
* ''VideoGame/ClusterTruck'': The "Supertruck" ability, adding the ''VideoGame/{{Superhot}}'' gimmick to the ''Clustertruck'' gimmick, where time (and trucks) only move when the player moves.
* ''VideoGame/CogenSwordOfRewind'' features Copen in his ''VideoGame/LuminousAvengerIX2'' self as a DLC playable character.
* ''VideoGame/CrashBandicootPurpleRiptosRampage'' and ''VideoGame/SpyroOrangeTheCortexConspiracy''. Both games features Franchise/{{Spyro|TheDragon}} and VideoGame/{{Crash|Bandicoot}} teaming up to defeat their respective enemies: Ripto and Dr. Cortex.
* ''VideoGame/CrossEdge'' is this in and out, with characters from the ''Franchise/{{Disgaea}}'', ''VideoGame/{{Darkstalkers}}'' and ''VideoGame/AtelierSeries'' franchises making playable appearances (some, like Marie from ''Atelier Marie'', being shown to international audiences for the very first time).
* ''[[Literature/IsItWrongToTryToPickUpGirlsInADungeon DanMachi]]: VideoGame/MemoriaFreese'':
** The ''Literature/KinosJourney'' crossover, ''Travelers and the Labyrinth Country'' featured Kino herself(In both three and four-star, plus the schoolgirl version from ''Literature/GakuenKino'' when it was added during the rerun.), Shizu, and Photo, as well as Hermes(the god), dressed as Kino, as [[PlayerCharacter Adventurers]], while Ti alongside Hestia, who was dressed as Photo, was an assist.
** During August-September 2018, Platform/{{Crunchyroll}} mascot Crunchyroll-Hime, appeared alongside Hestia, who was dressed as her, appeared as summon-able assists in a limited time gacha event.
** The ''Manga/AttackOnTitan'' crossover, ''Attack on Orario'', Featured Eren, Levi, and Mikasa, plus Bell and Ais, dressed in the attire of the former three, as Adventurers. It also had Armin and Titan!Eren as assists.
** ''Ais Catastrophe'' crosses over with ''Literature/DateALive'', During the event in its first run, it had two sets of summon-able characters. The ''Date'' set features Tohka and a Ais(dressed as Tohka's inverse form) as Adventurers while also featuring Kotori as an assist. The ''Live'' set featured Kurumi and Origami as adventurers while Hestia, dressed as Kotori, can be summoned as an assist. Kaguya can also be earned as an assist by clearing the event story. The Fragment set issued during the rerun includes Shido and Kotori(In spirit form) as adventurers.
** ''Dungeon and Goblins'' crosses over with ''Literature/GoblinSlayer''. Appearing characters include Goblin Slayer himself, Priestess, Noble Fencer, High Elf Archer, Sword Maiden, and Cowgirl. Cowgirl and Heavy Warrior-dressed variants of Chigusa and Ouka respectively also appeared. Sword Maiden as well as forms of Amid and Ryu dressed as Sword Maiden and High Elf Archer respectively also appeared during part 2.
* ''[[VideoGame/{{Darius}} Dariusburst: Chronicle Saviours]]'' features [[CrisisCrossover all the fighters from previous Darius games]] and also includes other characters from various Taito and Sega video games as DLC packs.
* ''VideoGame/DensetsuNoStafy3'' features a cameo by VideoGame/{{Wario}} in the eighth world. You have to activate some of his ''VideoGame/WarioLand4'' transformations in order to make your way through the stages. He ropes Starfy into helping him seek the ruins' treasure.
* ''VideoGame/DiddyKongRacing'' for the Platform/{{Nintendo 64}} is unusual in that it crossed ''VideoGame/DonkeyKongCountry'' with two games still in development when it was released: ''VideoGame/BanjoKazooie'' and ''Conker's Twelve Tales'' (which later became ''VideoGame/ConkersBadFurDay''). Banjo and Conker were removed from the Platform/NintendoDS version, obviously due to Creator/{{Rare}} and Creator/{{Nintendo}} parting ways. They were replaced by Tiny Kong and Dixie Kong.
* ''VideoGame/DissidiaFinalFantasy''. It's the main heroes and villains of Final Fantasies I-XII beating the ever-loving crap out of each other!
* The retail version of the ''[[VideoGame/DonPachi DoDonPachi DaiFukkatsu Black Label]]'' 360 port features an ArrangeMode that crosses ''[=DoDonPachi=]'' over with ''VideoGame/{{Ketsui}}'', with scoring elements, player ship, and TrueFinalBoss taken right out of ''Ketsui''.
* While we're at it, the first official mod for ''[[VideoGame/TheElderScrollsVSkyrim Skyrim]]'', after the long-awaited HD Texture Pack... was a collaborative effort between Valve and Bethesda, showing just where that [[EnsembleDarkHorse adorable little]] [[VideoGame/Portal2 Space Core]] wound up.
** And one of the fans wrote a mod that adds a crashed SSV ''Normandy'' from ''Franchise/MassEffect''.
** The ''VideoGame/ConanHyborianAge'' mod basically uses the ''Conan the Barbarian'' setting as a distant past of the Tamriel setting, with a few alterations to the former in order to fit the ''Elder Scrolls'' lore (like [[https://en.wikipedia.org/wiki/Crom_%28fictional_deity%29 Crom]] being renamed "[[http://www.uesp.net/wiki/Lore:Shor Shor]]"). The dungeon serving as the mod's core, the Hyborian Mound, is itself a combination of the mound in which Conan finds his sword and Thulsa Doom's lair.
** The ''Relics of Hyrule'' mod adds many different weapons, armor, enemies, lore and location inspired by the ''[[Franchise/TheLegendofZelda Legend of Zelda]]'' series, into the land of Skyrim and Solstheim. It's main premise is that Skyrim rose from the ashes of the once mythical kingdom after the Dark Army swept through, hence why its relics are scattered about for the player to find and use.
** The Nintendo Switch release of Skyrim allows you to find items from ''Franchise/TheLegendOfZelda'' series, such as Link's Tunic from ''[[VideoGame/TheLegendOfZeldaBreathOfTheWild Breath of The Wild]]'', the Master Sword, and the Hylian Shield.
* ''VideoGame/FinalFantasyXIV'' engages in {{Dualvertisement}} at times, with events featuring crossovers with other games such as ''VideoGame/DragonQuest'' and other ''Final Fantasy'' games. The alliance raid questline from the ''Shadowbringers'' expansion, ''[=YoRHa=]: Dark Apocalypse'', stands out in crossing over the world of ''FFXIV'' with ''VideoGame/NierAutomata'' [[spoiler:and, in the latter half of the questline, ''VideoGame/{{Drakengard}}'']].
* ''Franchise/FireEmblem'' has two.
** ''VideoGame/TokyoMirageSessionsFE'' is a crossover between the ''Fire Emblem'' and ''Shin Megami Tensei'' franchises, featuring an original story in Tokyo with ''Shin Megami Tensei'''s dungeon gameplay, featuring ''Fire Emblem'' characters as Mirages that work with the characters. The Fire Emblem characters included are mainly from ''Shadow Dragon'' and ''Awakening''.
** ''VideoGame/FireEmblemWarriors'' is a crossover between the ''Fire Emblem'' and ''Dynasty Warriors'' franchises, featuring a more Fire Emblem-esque story even taking place in a medieval world, with ''Fire Emblem'' characters from the worlds of ''Shadow Dragon'', ''Gaiden'', ''The Blazing Blade'', ''Awakening'', and ''Fates'' showing up to help the protagonists.
** Special mention goes to ''VideoGame/CodeNameSteam'', which is a Steampunk game with historical characters and fables. AND Marth, Ike, Robin, and Lucina, if you have their amiibo.
* ''VideoGame/ForzaMotorsport 4'' features the Top Gear (UK) test track, and Jeremy Clarkson will provide commentary on dozens of cars in the ''Autovista'' mode. All the Reasonably Priced Cars from the UK and US Top Gear will show up as well.
** On the subject of Top Gear, ''Forza Horizon 4'' features ''The Top Gear Horizon Special'', a storyline where the player takes control of the Stig and races through various challenges with narration from Chris Harris.
** The Warthog from ''Franchise/{{Halo}}'' will appear as an EasterEgg in the Autovista mode with Cortana (Creator/JenTaylor) providing the commentary for it in the place of Clarkson. Unfortunately, it's not drivable.
** The Warthog finally made a playable appearance in ''Forza Horizon 3'', and better yet, in ''FH 4'', a Showcase event has you assume the role of Master Chief in a race against a Pelican on a Halo ring.
** ''Forza Motorsport 6'' features the Chryslus Rocket 69 from ''VideoGame/Fallout4'' as DLC.
* The finale of ''VideoGame/GhostReconAdvancedWarfighter2'' has the Ghosts call in an air strike, and in ''VideoGame/{{HAWX}}'', you get to play the mission from the jet fighters' point of view. A similar crossover occurs between ''VideoGame/GhostReconFutureSoldier'' and ''HAWX 2''.
* ''VideoGame/GranblueFantasy'' is not only a FantasyKitchenSink within its own universe, but it's also so in a meta sense, as it has been the host of several events meant to join the universes of different copyrights with itself. At the time of this writing it has crossed over with ''Franchise/StreetFighter'', ''VideoGame/TheIdolmasterCinderellaGirls'', ''Literature/{{Slayers}}'', the ''VideoGame/TalesSeries'', ''VideoGame/SakuraWars'', ''VideoGame/SamuraiShodown'', ''Anime/KatsugekiToukenRanbu'', ''Manga/CardcaptorSakura'', ''Manga/AttackOnTitan'', ''Anime/LoveLive'' and ''VideoGame/Persona5''.
** ''VideoGame/{{Shadowverse}}'' from the same company has started to make crossovers with various franchises allowing you to play as characters from those. As of writing it's limited to ''VisualNovel/FateStayNight'' and ''Franchise/StreetFighter'', so it's very possible to have an epic battle where Ryu faces Saber ... using a [[WebVideo/YuGiOhTheAbridgedSeries children's card game]].
* ''VideoGame/HalfLife'' and ''VideoGame/{{Portal}}'' were originally different universes altogether. ([=GLaDOS=] vaguely alludes to the events of ''Half-Life'' once in passing, but that was just an easter egg.) But then! In ''VideoGame/Portal2'' you can find the drydock for a ship called the Borealis, and ''VideoGame/HalfLife2: Episode 2'' ends with Gordon Freeman about to set off to find it.
** The shared universe is not only an allusion in the first game - in several rooms the player can find projectors with slides explaining explicitly that Black Mesa is a (hated!) competitor of Aperture Science.
* ''VideoGame/HeroesOfTheStorm'' is a MOBA which crosses over Creator/BlizzardEntertainment's [[VideoGame/{{Warcraft}} magnum]] [[Franchise/StarCraft opus]] [[VideoGame/{{Diablo}} games]], [[VideoGame/{{Overwatch}} the newest one]], and [[VideoGame/TheLostVikings some of their classics]] into one big fun brawl.
* ''VideoGame/HonkaiImpact3rd'' had two crossovers so far, as of making this entry. One with the anime ''Anime/NeonGenesisEvangelion'' and another with its sister game ''VideoGame/GenshinImpact''. Both featured unique crossover event stories, outfits based on that series and a guest character (Asuka and Fischl respectively).
* Early editions of Creator/{{Sierra}}'s ''Hoyle's Official Book of Games'' series featured characters from other Sierra games as playable opponents, allowing players to play a few hands of Crazy Eights with the likes of VideoGame/DrBrain, [[VideoGame/KingsQuest King Graham]], and VideoGame/LauraBow, or challenge [[VideoGame/SpaceQuest Roger Wilco]] to a game of checkers.
* ''Jewelry Master Twinkle'', an already-obscure PuzzleGame, is actually a crossover between the ''VideoGame/TetrisTGM''-like game ''Jewelry Master'' and the even-more-obscure mahjong game ''Taikyoku Mahjong Net-De-Ron''.
* ''VideoGame/JumpSuperStars'': A MascotFighter featuring several characters from ''Magazine/ShonenJump''.
** And prior to that, there were ''Famicom Jump: Hero Retsuden'' and ''Famicom Jump II: Saikyō no Shichinin''.
* ''Franchise/KingdomHearts'' -- Where Creator/{{Disney}} and ''Franchise/FinalFantasy'' meet.
* ''VideoGame/TheKingOfFighters'' -- Featuring characters from ''VideoGame/FatalFury'', ''VideoGame/ArtOfFighting'', ''VideoGame/PsychoSoldier'', ''VideoGame/IkariWarriors'', and one or few from other SNK titles, as well as some exclusives like Kyo Kusanagi and his partners and rivals.
** One game in its 3D spinoff Maximum Impact (Mainly MI:2) had Hanzo Hattori from ''VideoGame/SamuraiShodown'' and Fio Germi from ''VideoGame/MetalSlug'' as unlockable characters.
** ''VideoGame/MetalSlug 6'' and ''7'' featured Ralf Jones and Clark Still (originally from ''VideoGame/IkariWarriors'', but using their appearances from the ''KOF'' franchise) as playable characters, with fellow Team Ikari member Leona appearing as a DLC character in ''VideoGame/MetalSlug XX'', a PSP re-release of ''Metal Slug 7''.
* Creator/{{Konami}} has a great story with this.
** ''VideoGame/WaiWaiWorld'' was the first cross-over in console video game history.
** Konami's VideoGame/{{Parodius}} series.
** ''VideoGame/KonamiKrazyRacers''.
** ''VideoGame/DreamMixTVWorldFighters'', is a crossover between Konami, Hudson and Takara.
** ''VideoGame/SundayVSMagazineShuuketsuChoujouDaikessen'', is crossover between two manga mazine giants, Weekly Shonen Sunday and Weekly Shonen Magazine.
** [[VideoGame/{{Gradius}} The Vic Viper]] appears as a TransformingMecha in ''VideoGame/ZoneOfTheEnders 2''.
** Some characters in ''VideoGame/PopNMusic'' come from other {{Creator/Konami}} franchises, as a result of having songs or remixes of songs from games they appeared in being put in the game:
*** [[VideoGame/{{Gradius}} Vic Viper]], in his NES ''Gradius'' form ("Gradius -Full Speed-", "A Shooting Star")
*** [[Franchise/{{Castlevania}} Simon Belmont]] ("Akumajo Dracula[[note]]the Japanese name for the ''Castlevania'' series[[/note]] Medley Hybrid".)
*** VideoGame/{{G|anbareGoemon}}oemon ("Ganbare Goemon Medley")
*** [[VideoGame/DanceDanceRevolution Emi and Afro]], exactly as they appeared in DDR ("Flowers" and "Afronova Primeval," respectively, as well as "DDR Megamix" for Afro)
*** [[VideoGame/BeatmaniaIIDX Tran]] (various IIDX songs)
*** [[VideoGame/BeatmaniaIIDX SigSig]], exactly as she appeared in IIDX ("[=SigSig=]")
*** [[VideoGame/ZoneOfTheEnders Dingo and Ken]] ("Beyond the Bounds")
* ''VideoGame/KoumajouDensetsu'', ''Franchise/TouhouProject'' meets ''Franchise/{{Castlevania}}''.
* ''VideoGame/LastCloudia'':
** The ''[[VideoGame/WorldOfMana Collection of Mana]]'' Event featured Randi, Primm, and Popoi as potential warriors to summon, had an event that was set in the Mana Fortress, and had Arks based on the first three games.
** There was also a crossover with ''Manga/DrStone'' as well, ''The Science-user from Another World''. Senku and Kohaku are summon-able during this. It was followed up with ''Tsukasa Shishio's Challenge'' which adds Tsukasa himself to the roster.
* Sega's ''VideoGame/{{Maimai}}'' arcade game enjoys doing this every now and then.
** The Sega section is ExactlyWhatItSaysOnTheTin. The songs are from Sega games, like "[[VideoGame/SonicAdventure2 Live and Learn]]", "[[VideoGame/BurningRangers Angels With Burning Hearts]]", and "[[VideoGame/PhantasyStarUniverse Save This World]]".
** An update to maimai ORANGE PLUS added tracks from ''VideoGame/Persona4DancingAllNight'', such as Pursuing My True Self and Time to Make History.
** The TOUHOU PROJECT section consists entirely of [[ExactlyWhatItSaysOnTheTin rearrangements of Touhou Project tunes.]] The niconico section consists almost entirely of ''Vocaloid'' tracks.
** The GAME & VARIETY section borrows songs from other games or companies, such as [[VideoGame/GrooveCoaster Got more raves?]], [[VideoGame/TaikoNoTatsujin Kitasaitama2000]], and [[VideoGame/{{jubeat}} FLOWER]].
** The reverse also happened with ''Groove Coaster'', ''Taiko'', and ''jubeat'', which received the ''maimai'' original song Garakuta Doll Play in a similar event to the above three songs.
** And then there's ''Karma'' by ''Bump of Chicken'', from Namco's VideoGame/TalesOfTheAbyss. Although strangely, it was listed under Anime and used a custom-made PV instead of the game's opening cinematic.
** maimai [=PiNK=] added ''Gera Gera Po no Uta'', the theme song from the anime and game of VideoGame/YokaiWatch.
** On the other end of the scale, ''maimai'' likes to appear in ''VideoGame/PhantasyStarOnline2'' on occasions, allowing players to purchase replicas of the machine that also function as a Jukebox, as well as Music Discs for some of the game's original tracks. Appropriately, Quna's ''Our Fighting'' was added to ''maimai ORANGE'' in an update.
* ''VideoGame/MarioAndSonicAtTheOlympicGames'', a MassiveMultiplayerCrossover of the two [[Franchise/SuperMarioBros biggest]] [[Franchise/SonicTheHedgehog mascots]] in video games and their ensemble competing in the Olympic Games.
* Even the venerable ''VideoGame/MarioKart'' series does this... although ''most'' of the characters are Marioverse stalwarts, Donkey Kong and Diddy Kong are their ''VideoGame/DonkeyKongCountry'' incarnations. Being co-developed by Namco, the [[VideoGame/MarioKartArcadeGP arcade games]] go further than the home console versions and include characters from ''VideoGame/PacMan'', ''VideoGame/TaikoNoTatsujin'' and, oddly enough, ''Toys/{{Tamagotchi}}''.
** ''GP'' and ''GP 2'' feature Diamond City from ''VideoGame/WarioWare'' as the location of a few playable tracks. While Wario himself does have ties to Marioverse, this is one of the few times something from the ''[=WarioWare=]'' series made an appearance in a ''Mario'' game.
** ''Mario Kart 8'' includes characters, karts, and stages from ''Franchise/TheLegendOfZelda'', ''VideoGame/{{Excite}}bike'', ''VideoGame/FZero'', and ''VideoGame/AnimalCrossing'' in its DLC. The UpdatedRerelease ''Mario Kart 8 Deluxe'' adds the Inklings from ''Franchise/{{Splatoon}}'' and a battle stage based on the first game's Urchin Underpass stage as well.
* ''VideoGame/{{Mari0}}'' is a fan-made {{freeware|games}} crossover between ''Franchise/SuperMarioBros'' and ''VideoGame/{{Portal}}''. You play as Mario... except you have a portal gun.
* There are also two ''Mario'' RPG series, ''VideoGame/MarioAndLuigi'' and ''VideoGame/PaperMario'', crossing over in ''VideoGame/MarioAndLuigiPaperJam'', making it a rare example of a crossover between two works in the same franchise.
* ''VideoGame/MarioPlusRabbidsKingdomBattle''; as its name suggests, crosses the ''Mario'' franchise with the ''VideoGame/RavingRabbids'' franchise. The same goes for [[VideoGame/MarioPlusRabbidsSparksOfHope its sequel]].
* Owen and Kate from ''VideoGame/MasterOfTheMonsterLair'' also appear in ''VideoGame/MyWorldMyWay''.
* ''VideoGame/MightyNo9'', ''VideoGame/AzureStrikerGunvolt'', and ''VideoGame/GalGun: Double Peace''[='=]s respective protagonists were brought together in Inti Create's crossover game, ''VideoGame/MightyGunvolt'' (or ''Gal*Gunvolt'' if you live in Japan and have a [=PlayStation=] system), which was a simple ''Mega Man''-styled action platformer. A later sequel, ''VideoGame/MightyGunvoltBurst'' also brought these characters together again while featuring a Burst combo system and the ability to customize each heroes' abilities and weapons.
* ''VideoGame/MortalKombatVsDCUniverse''
* ''VideoGame/MortalKombat9'' features [[Franchise/ANightmareOnElmStreet Freddy Krueger]], as well as [[VideoGame/GodOfWar Kratos]] in the Platform/PlayStation3 version. ''VideoGame/MortalKombatX'' lacks Freddy, but ups the ante by including [[Franchise/FridayThe13th Jason Voorhees]], [[Franchise/{{Predator}} a Predator]], [[Film/TheTexasChainsawMassacre Leatherface]], and [[Franchise/{{Alien}} a Xenomorph]].
* ''VideoGame/{{MUGEN}}'' is technically the ultimate crossover game, as, for example, you can fight a Touhou character with a ''Franchise/MortalKombat'' character. That's just a basic example, as well!
* ''VideoGame/NamcoHigh'' is a DatingSim that stars characters from ''VideoGame/{{Galaga}}, VideoGame/{{Klonoa}}, VideoGame/RollingThunder, Webcomic/{{Homestuck}}'' and more. In a high school setting...
* In addition to some already present in the KOF series, ''VideoGame/NeoGeoBattleColiseum'' also added characters from other SNK titles that the KOF series didn't add, as well as some ADK titles (due to SNK Playmore's purchase of ADK after it filed for bankruptcy).
* ''VideoGame/NexusClash'' isn't this trope per se, but the cyclical nature of its universe and the willingness of Nexal souls to adopt new identities that suit them mean that it's cluttered with people who identify as all sorts of fictional and mythical figures. The magic of the Nexus works as a LiteralMetaphor to make these people as much like what they identify with as possible.
* VideoGame/{{Ni|ghtsIntoDreams}}GHTS is featured in both of the ''VideoGame/SonicAdventure'' [[VideoGame/SonicAdventure2 games]], and while he bears no real significance to the plot, he is a part of a level in each, moreso in ''VideoGame/SonicAdventure''.
* [=NiGHTS=] and other ''VideoGame/NightsIntoDreams'' characters also make an appearance in the the Deadly Six edition of ''VideoGame/SonicLostWorld''. DLC for the game also includes both a ''VideoGame/YoshisIsland'' and [[Franchise/TheLegendOfZelda Zelda]] Zone.
* [[VideoGame/NinjaGaiden Ryu Hayabusa]] in ''VideoGame/DeadOrAlive''. Also done in reverse, with Ayane appearing as a supporting character in the new ''VideoGame/NinjaGaiden'' games.
** ''Dead or Alive 4'' has Nicole-458, a Spartan from the ''Franchise/{{Halo}}'' verse.
** ''Dead or Alive 5'' has {{Guest Fighter}}s from VideoGame/VirtuaFighter and [[VideoGame/FatalFury S]][[VideoGame/TheKingOfFighters NK]] appear, as well as Naotora Ii from ''VideoGame/SamuraiWarriors''
* ''VideoGame/PaydayTheHeist'', with its gameplay so inspired by ''VideoGame/Left4Dead'', went the full mile and released a heist based on Mercy Hospital from ''[=L4D=]'''s "No Mercy" campaign.
* ''VideoGame/Payday2'' takes it even further and has (at last count) had a crossover with VideoGame/HotlineMiami and [[VideoGame/HotlineMiami2WrongNumber its sequel]], Franchise/JohnWick, [[VideoGame/CounterStrike Counter Strike: Global Offensive]], Swedish DJ Alesso, Film/PointBreak2015, Film/HardcoreHenry, VideoGame/GoatSimulator, Film/{{Scarface|1983}}, Film/ReservoirDogs, VideoGame/{{Speedrunners}}, and VideoGame/EnterTheGungeon. Yes, really.
* In ''VideoGame/PersonaQShadowOfTheLabyrinth'', the full casts of ''VideoGame/Persona3'' and ''VideoGame/Persona4'' end up becoming involved in the mystery of the Labyrinth.
** The sequel ''VideoGame/PersonaQ2NewCinemaLabyrinth'' also adds the cast of ''VideoGame/Persona5''.
* ''VideoGame/PlaystationMoveHeroes'' is a three-way crossover with ''VideoGame/JakAndDaxter'', ''Franchise/RatchetAndClank'', and ''VideoGame/SlyCooper''.
* ''VideoGame/PokemonConquest'': ''Franchise/{{Pokemon}}'' meets ''VideoGame/NobunagasAmbition''.
* ''VideoGame/PokerNightAtTheInventory'' has [[VideoGame/TeamFortress2 the RED Heavy]], [[WebAnimation/HomestarRunner Strong Bad]], [[Webcomic/PennyArcade Tycho]], and [[VideoGame/SamAndMaxFreelancePolice Max]] get together for a game of poker. The sequel adds VideoGame/{{Sam|AndMaxFreelancePolice}}, [[VideoGame/{{Borderlands}} Claptrap]], [[WesternAnimation/TheVentureBros Brock Samson]], and [[Franchise/EvilDead Ash Williams]], with [[VideoGame/{{Portal}} GLaDOS]] as the dealer.
* ''Pop 'n Pop'', an obscure puzzle game does this with both the gameplay and the characters. The gameplay is essentially ''[[VideoGame/BubbleBobble Puzzle Bobble]]'' with a few elements from ''VideoGame/SpaceInvaders'' thrown in while the roster is made up of characters from various Taito arcade games.
** Averted in North America, where it was [[DolledUpInstallment rebranded]] as a ''WesternAnimation/YogiBear'' game.
* ''VideoGame/ProjectXZone'' was a massive crossover between Creator/BandaiNamcoEntertainment, Creator/{{Capcom}}, and Creator/{{Sega}}. In its sequel, Creator/{{Nintendo}} also got in the mix.
* ''VideoGame/PowerRangersLegacyWars'', in addition to being a MassiveMultiplayerCrossover of numerous ''Franchise/PowerRangers'' series, has a handful of characters from ''Franchise/StreetFighter'' (Ryu, Chun-Li, Cammy, Guile, Akuma, and M. Bison) throwing down.
* ''VideoGame/ProfessorLaytonVsAceAttorney'', obviously combining ''VideoGame/ProfessorLayton'' and ''Franchise/AceAttorney''.
* ''VideoGame/PuttPutt and VideoGame/FattyBear'''s ''Activity Pack''.
* ''VideoGame/PuyoPuyo'' and ''VideoGame/{{Tetris}}'', two popular FallingBlocks games come together for ''VideoGame/PuyoPuyoTetris''.
* This is the whole premise of ''VideoGame/RakenzarnTales''. The world of Rakenzarn is home to every fictional character. We probably won't see them all.
** Its sister series, ''VideoGame/RakenzarnFrontierStory'', is this as well with the added premise of AlternateUniverse. It's possible this is an even BIGGER crossover than Rakenzarn Tales since we'll be seeing different versions of characters. This includes two versions of Mario: the Mario we all know and love... and the Mario from ''Series/TheSuperMarioBrosSuperShow''.
* The ''VideoGame/RivalSchools'' games have had a few crossovers with Creator/{{Capcom}}'s more popular fighting game series ''Franchise/StreetFighter''; the most obvious was Sakura Kasugano, Ryu's HeroWorshipper, being a playable character in the console versions of the game. There is also a character known as Ran Hibiki, whose name is almost exactly the same as that of Dan Hibiki. Just what her relationship to him is undetermined, assuming there is a relationship at all and it is not simply an {{homage}}.
** Ran's classmate, the unnamed {{C|lassRepresentative}}hairperson, also happens to study Dan's self-invented martial art, Saikyo-ryu, with [[JokeCharacter predictable results]].
** Hinata also claims to be a student of "Masters-ryu Karate" in ''Nekketsu Seishun Nikki 2'', which explains why some of her special moves have the same flame effect as Ken's Dragon Punch in ''Super Street Fighter II''.
** Also in ''Street Fighter'', Cody, Guy, Rolento, and Sodom from ''VideoGame/FinalFight'' appear as playable characters in the ''Alpha'' series. The crossover between the two also carried over into the cartoon, which featured a retelling of ''Final Fight's'' storyline while adding Ryu and Ken.
* The ''VideoGame/SegaSuperstars'' series subverts this at first, as it is essentially a collection of games based on Sega properties, but the second game, ''Superstars Tennis'' has Sega characters all play tennis together, playing the trope straight. Then there was a third racing game, which was a lot better than expected.
** Before that we had, ''VideoGame/FightersMegamix'', which included most of Sega's 3D characters in a fighting game.
* The adventure game ''Literature/SherlockHolmes: Nemesis'' features Holmes matching wits with GentlemanThief Arsene Lupin.
** There are stories and videogames which also cross him over with the Franchise/CthulhuMythos.
* The ''Franchise/ShinMegamiTensei'' spinoff ''VideoGame/ShinMegamiTenseiLiberationDx2'' has occasional crossovers featuring different franchises, allowing some characters to be summoned as limited demons. So far, the list includes ''VideoGame/{{Bayonetta}}'', ''VideoGame/DevilMayCry'', ''Manga/{{Berserk}}'', ''Anime/GhostInTheShellSAC2045'', ''Franchise/SonicTheHedgehog'', and ''Manga/TheSevenDeadlySins''.
* ''VideoGame/TheSims4'' has characters based on Liberty, Travis, Summer, Candy, and Yuki from ''VideoGame/MySims'', and Kaori from ''VideoGame/{{SSX}}'' was added in the Japan-themed "Snowy Escape" expansion pack.
* ''VideoGame/SINoALICE'':
** The game has a collaboration event with another Yoko Taro work, ''VideoGame/NierAutomata'', focusing on the amusement park boss Simone. 2B, 9S, A2, Emil in his No. 7 form, and several weapons from the game also make an appearance in this crossover.
** Another crossover event with ''VideoGame/Drakengard3'' featured Zero, One, Accord and Mikhail [[spoiler:in human and dragon form]], as well as some weapons (including weapons from the first 2 ''Drakengard'' games) and enemies from that franchise [[spoiler:like the Intoners turned into Nightmares]]. The event's revival in June 2019 later added [[spoiler:Two, Three, Four and Five]].
** The third Yoko Taro work to get a crossover event is the original ''VideoGame/NieR'' (specifically the ''Replicant'' version), with both versions of Brother Nier, Kaine, a human Emil and Devola and Popola as a single character being playable. The June 2020 revival run adds [[spoiler:Yonah as well as the King of Facade as a double unit with Fyra.]]
** Non-Yoko Taro works included for crossover events are ''Tsuri Star'', ''VideoGame/SpaceInvaders'', ''VideoGame/FinalFantasyBraveExvius'', ''Anime/CodeGeass'', ''Literature/ReZero'', ''VisualNovel/HigurashiWhenTheyCry'', ''Manga/RozenMaiden'' and virtual idol group Gems Company[[labelnote:note]]The group's music is composed by [[Music/{{MONACA}} the same group]] who did the music for ''[=SINoALICE=]''[[/labelnote]]. From the ''Literature/ThatTimeIGotReincarnatedAsASlime'' event onwards, crossover events will be held simultaneously between the JP and Global servers.
* ''VideoGame/SoulSacrifice [[UpdatedRerelease Delta]]'' has crossovers from other Platform/PlayStationVita games, such as ''VideoGame/FreedomWars'', ''VideoGame/GodEater2'', ''VideoGame/{{Toukiden}}'', ''VideoGame/GravityRush'', ''VideoGame/WildArms'', ''VideoGame/RagnarokOdyssey Ace'', and ''VideoGame/PhantasyStarOnline2''. [[note]]The last two are exclusive to the original VanillaEdition, and the last one is exclusive to Japan.[[/note]] Players can battle bosses like Dionaea (''Freedom Wars''), Marduk (''God Eater 2''), and the Chthonian and Abyssal Fiends (''Toukiden''), and unlock weapons and costumes from their respective universes, like the Sinner's costume and Thorn, the God Eater's costume and God Arc, and the Mononofu armor.
* The ''VideoGame/SoulSeries'' is famous for this. Guest characters have included [[Franchise/TheLegendOfZelda Link]], ComicBook/{{Spawn}}, [[VideoGame/{{Tekken}} Heihachi]], [[VideoGame/TalesOfSymphonia Lloyd Irving]], [[VideoGame/GodOfWar Kratos]], [[Franchise/StarWars Yoda and Darth Vader]], and [[VideoGame/AssassinsCreedII Ezio Auditore da Firenze]].
* ''VideoGame/StarCraftI'' had an unofficial crossover with ''Manga/RanmaOneHalf'' in a campaign called ''Vision of the Future''. Unfortunately, the file is currently unavailable as the site that had it expired.
* Every ''Mario'' game that Creator/SquareEnix has worked on (''VideoGame/SuperMarioRPG'', ''VideoGame/FortuneStreet'', and ''Mario Hoops 3-on-3'') has included characters from their own series in some form. ''SMRPG'' features a {{Superboss}} utilizing the boss, victory, and Prelude themes from ''VideoGame/FinalFantasyIV'', ''Hoops'' features [[VideoGame/FinalFantasyI a Ninja, a White Mage, a Black Mage,]] a Moogle, and a Cactuar as unlockable characters, and roughly half the roster of ''FS'' is made up of ''VideoGame/DragonQuest'' characters (with some ''Final Fantasy'' characters appearing in [[NoExportForYou previous Japan-only installments]]).
* ''VideoGame/SuperRobotWars'' is a MassiveMultiplayerCrossover of various {{mecha show}}s, [[MechaGame games]], and other media by Creator/{{Banpresto}} (later a subsidiary of Creator/BandaiNamcoEntertainment) until the same company also gave us ''VideoGame/AnotherCenturysEpisode''. Said developers also made ''VideoGame/NamcoXCapcom'' and ''VideoGame/ProjectXZone''.
* ''VideoGame/SuperSmashBros'' is a MascotFighter with Nintendo's flagship franchises duking it out.
** While the roster of Nintendo characters was small in [[VideoGame/SuperSmashBros64 the original game]], it increased considerably in ''VideoGame/SuperSmashBrosMelee'', which not only added more characters to the existing universes but also went as far as introducing characters from franchises that were relatively obscure back then, such as the VideoGame/{{Ice Climber}}s, [[Franchise/FireEmblem Marth and Roy]], and [[VideoGame/GameAndWatch Mr. Game & Watch]].
** Starting with ''VideoGame/SuperSmashBrosBrawl'', it's also crossed-over with third-party characters [[VideoGame/MetalGearSolid Solid Snake]] and Franchise/SonicTheHedgehog. ''VideoGame/SuperSmashBrosForNintendo3DSAndWiiU'' extends it with VideoGame/PacMan, Franchise/MegaMan, [[Franchise/StreetFighter Ryu (and later, Ken)]], [[VideoGame/FinalFantasyVII Cloud Strife (and later, Sephiroth)]], and VideoGame/{{Bayonetta}}. As of ''VideoGame/SuperSmashBrosUltimate'', [[Franchise/{{Castlevania}} Simon and Richter Belmont]], [[VideoGame/Persona5 Joker]], the Heroes of ''Franchise/DragonQuest'' [[labelnote:*]] specifically, those of [[VideoGame/DragonQuestXI XI]], [[VideoGame/DragonQuestIII III]], [[VideoGame/DragonQuestIV IV]] and [[VideoGame/DragonQuestVIII VIII]][[/labelnote]], [[VideoGame/BanjoKazooie Banjo & Kazooie]], [[VideoGame/FatalFury Terry Bogard]], [[VideoGame/{{Minecraft}} Steve]], [[Franchise/{{Tekken}} Kazuya Mishima]], and [[Franchise/KingdomHearts Sora]] have all joined as well.
** Characters from other series are also represented in the later games through [[VirtualPaperDoll Mii Fighter]] costume DLC, including ''VideoGame/VirtuaFighter'' and ''VideoGame/{{Undertale}}''. ''Ultimate'' also features third party Assist Trophy characters who come from series not represented by playable characters like VideoGame/{{Bomberman}}, VideoGame/ShovelKnight, and [[VideoGame/MonsterHunter Rathalos]] (this one also being one of the bosses in the Classic and Adventure modes), as well as characters like ''VideoGame/{{Shantae}}'' and ''VideoGame/{{Rayman}}'' making cameos in Spirits mode.
** Thanks to the first line of Toys/{{amiibo}} being made for ''Smash Bros.'', games compatible with amiibo have crossover content ranging from costumes in a ''Manga/OnePiece'' game to the ''Fire Emblem'' characters being playable in ''VideoGame/CodeNameSteam''.
* ''VideoGame/StarlinkBattleForAtlas'' features ''Franchise/StarFox'' characters in a original storyline in the Switch version.
* Namco's ''Tales of the World'', starting with ''Nakiri Dungeon 3'', and including the ''Radiant Mythology'' spin-offs, take characters from all the ''VideoGame/TalesOf'' titles, which otherwise only exist as [[SpiritualSuccessor spiritual sequels]].
* ''VideoGame/{{Terraria}}'':
** The 1.2.4 update had a crossover with ''VideoGame/PixelPiracy'', introducing several pirate-themed items.
** The 1.3.4 update was one big crossover with ''[[VideoGame/DungeonDefenders Dungeon Defenders 2]]'', complete with a tower-defense-style invasion event featuring Etherian enemies and bosses, and piles of weapons and armor as rewards. ''Dungeon Defenders 2'', in turn, received its own ''Terraria''-themed crossover update.
** [[RuleOfThree And there's another for the 1.4.3]], this time it was a massive crossover update with ''[[VideoGame/DontStarve Don't Starve Together]]''. On Terraria's end, it received the Deerclops, as well as Chester and a whole lot of new items. There was even a secret seed that allows the world made with it to mimic Don't Starve Together's darkness and hunger mechanics. And for Don't Starve, it received the Eye of Cthulhu ([[AdaptationNameChange which is known as the Eye of Terror]]), an eyeball pet, and some additional items. Fittingly, due to the [[BossFight selling]] [[{{Cyclops}} points]] of these updates- it was known as the Eye for an Eye update.
* ''VideoGame/UnderNightInBirth'' featured two {{Guest Fighter}}s in the game's "Ex: Late" update: Eltnum, implied to be Sion Eltnum Altasia from ''VideoGame/MeltyBlood''; and Akatsuki, the protagonist of ''VideoGame/AkatsukiBlitzkampf''.
* ''VideoGame/UniversalStudiosThemeParkAdventure'' is based on the real-life Ride/UniversalStudios theme parks, and just like them, features attractions based on a variety of famous movies, including ''Franchise/BackToTheFuture'', ''{{Film/Jaws}}'', ''Franchise/JurassicPark'', and a couple others. WesternAnimation/WoodyWoodpecker acts as the game's guide and makes recurring appearances throughout the game to explain each ride.
* ''VideoGame/UnrealChampionship2TheLiandriConflict'' featured Raiden from ''Franchise/MortalKombat'' and Shao Kahn as an optional announcer. It helps that it was the first Unreal game being published by Creator/MidwayGames.
* ''VideoGame/WarioLandLegendsOfSixCrystals'' is a fan-made ''VideoGame/WarioLand'' game that crosses over with ''WesternAnimation/MyLittlePonyFriendshipIsMagic''. It also includes other characters and elements from ''Franchise/MortalKombat'', the main ''Franchise/SuperMarioBros'' games, and even ''WebAnimation/HappyTreeFriends''.
* A small one in the ''VideoGame/WithFriends'' line between ''Stampede Run'' and ''Words With Friends''; you can pick up letter tiles from ''Words'' as bonuses in ''Stampede Run''. Get enough to spell out a word and you earn extra gems and XP.
* While it makes sense since they are a part of the same cosmology, most of Bioware and Obsidian's D&D-based games have subtle crossovers. Most notably, ''VideoGame/BaldursGateII'' features artifacts from some of the characters of ''VideoGame/PlanescapeTorment'', and one of said characters is also mentioned by an NPC in ''VideoGame/NeverwinterNights2''.
** Not surprising. The collusion started with ''VideoGame/NeverwinterNights'', but reached its height with ''VideoGame/KnightsOfTheOldRepublic''. The first game is "''VideoGame/BaldursGate'' with lightsabers." The second is "''VideoGame/PlanescapeTorment'' with lightsabers"
** Perhaps less crossover than ContinuityCameo, but the fates of the characters from the TV show of ''TabletopGame/DungeonsAndDragons'' is on a wall in ''Baldur's Gate II''.
* ''VideoGame/Rage2011'' has [[Franchise/{{Doom}} Space Marine]] and [[VideoGame/{{Fallout}} Vault Boy]] bobbleheads.
* ''ComicBook/RoboCopVersusTheTerminator'' is about [=RoboCop=] fighting against Skynet. There was also a comic.
* ''Iron Man and X-O Manowar in Heavy Metal'' is a crossover between ComicBook/IronMan and ComicBook/XOManowar. There was also a comic.
* ''Senran [=NinNinNinja=] Taisen Neptune: Shojo-Tachi no Kyoen'' is a crossover between ''VideoGame/SenranKagura'', ''VideoGame/{{Neptunia}}'', and it even features a {{gender|Bender}}-swapped version of Goh from ''VideoGame/{{Shinobido}}'' as [[GuestFighter a special guest]].
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