History CrossOver / FanWorks

* ''Fanfic/JauneArcLordOfHunger'' is a crossover between ''WebAnimation/{{RWBY}}'' and ''Franchise/StarWars'', specifically the ''Franchise/StarWarsLegends'' continuity. The fic's premise sees Jaune gets possessed by the Force ghost of [[VideoGame/KnightsOfTheOldRepublic Darth Nihilus]] right before he enrolls into Beacon Academy.
** Chapter 17 features a brief crossover with ''Machinima/RedVsBlue'' in the form of a FusionFic where all the [=RvB=] characters are reimagined as mercenaries in the ''Star Wars'' galaxy.

* ''Fanfic/InfinityTrainTeslaStar'' is a crossover between ''WesternAnimation/InfinityTrain'' and ''WesternAnimation/TheLoudHouse'' where Stella board the Train after her mtoher grounded her for making popcorn and causing a blackout.

* ''Fanfic/KyonBigDamnHero'' manages to become a crossover between LightNovel/HaruhiSuzumiya and ''Wiki/TvTropes'', with ''VisualNovel/HigurashiWhenTheyCry'' and bits of [[spoiler:''VideoGame/HalfLife'']] added in as well.

** And Season 3 consists of ''[[UpToEleven entirely]]'' crossover episodes!

* ''Fanfic/EyesOnMe'' is a MassiveMultiplayerCrossover fanfic predominantly revolving around ''WesternAnimation/StevenUniverse''.

* ''Fanfic/TheFairyAndTheAngel'' is a crossover between ''Anime/YuriOnIce and the ''Franchise/Riordanverse'')

* Fanfic/KhaosOmega uses this prominently by sending someone (usually the [[ArtifactTitle titular]] [[RedBaron Amethyst Angel]], a modified version of [[VideoGame/GalaxyAngel Galaxy Angel II's]] [[DarkSkinnedRedhead Anise Azeat]]) to another game's world. With a massive dose of multiverse theory on top of it, and a faction of immortal multiverse-traveling crime fighters (of whom the aforementioned Amethyst Angel is a high-ranking member, and founded by six siblings (five of whom are based on real-life people Khaos knows including third-oldest Jet being based on Khaos himself), things can go crazy insanely fast.

*** Speaking of Jet, the Koopalings (minus an uninvolved Junior and under their cartoon names), and Dark Moonlight, a prank war-themed story (also with Wendy opting out) has Jet, alongside his eldest sister Hollie and Rochelle, appear as a wild-card third 'Cyan' team; Dark Moonlight, a member of one of the two starting teams (Red, which he joined partway through), recognizes Jet by the alternate name 'Ace Skyfire'. The author of the prank war story also provided a character (Rose) to the Roy-hosted party story (Rose, Jet, and Dark Moonlight are the only three members of the first wave of 131 who do not take off immediately).

* ''Fanfic/{{Paradoxus}}'' crosses over VideoGame/WorldOfWarcraft and WesternAnimation/WinxClub. Azeroth and Magix are both dimensions created by the First Ones, just so far away from each other it ''normally'' wouldn't have been a chance to clash. However, thanks to the interdimensional meddling of Elune's elf ChosenOne and Sargeras' new lieutenant (also an elf), plus the fact there are elves in both dimensions, now Magix and Azeroth have met. Or, rather, Bloom (now Eraklyon's queen) gets suddenly stripped out from the planet while investigating a rare disease (a new Undead Plague, workings of the Burning Legion elf) that has killed thousands of citizens. And she appears in Sin'dorei territory, gets to meet Sylvanas Windrunner and Elune's ChosenOne. A little while after, Bloom and Stella are assassinated by the now multi-dimensional menace ([[BreakTheCutie in front of the former's kid daughter]]) and it's up to [[FanCreatedOffspring their daughters]] to try and fix the situation.

* ''Fanfic/PokemonCrossingFlyMeToTheMoon'': VideoGame/AnimalCrossing villagers live in the Franchise/{{Pokemon}} world; several villagers become trainers, gym leaders, or join villainous teams.

* In ''Fanfic/AShadowOfTheTitans'', a ''WesternAnimation/JackieChanAdventures'' and ''WesternAnimation/TeenTitans'' crossover fanfiction, Jade ends up in the Teen Titans universe.

* ''Fanfic/ShinjiAndWarhammer40K'' is sort of an odd example. It is not a story where the universes meet, being more of a ForWantOfANail story about Shinji getting a large amount of TabletopGame/Warhammer40000 pieces and rulebooks as a child. His different (happier) childhood makes for a more dynamic protagonist and leads him to influence the rest of the cast into making things that fit the 40K ethos more than the original Evangelion series did. It's not the straightest example of a universe-to-universe crossover.

* ''Fanfic/SOE2LoneHeirOfKrypton'': Between Franchise/{{Superman}} and ''Anime/NeonGenesisEvangelion''. Asuka knew she had been conceived by a sperm donor. What she did not know was her biological father was an alien from another planet, and his DNA conferred vast powers on her. Shortly after finding out about it, she becomes ''ComicBook/PowerGirl'' and later ''ComicBook/{{Supergirl}}''.

* ''Fanfic/TheWhiteWolfOfWesteros'' is a crossover between Series/GameOfThrones and Literature/TheWitcher. It begins at the end of VideoGame/TheWitcher3WildHunt with Ciri going to face the white frost, but something goes wrong, and upon going after her, Geralt is flung into the Game of Thrones just a few months before the main story would begin.

--> '''News Reporter:''' We just got reports of [[WesternAnimation/ThePowerpuffGirls three super-powered sisters from the city of Townsville, Animenia]], in the Warner Bros. studio.

* [[http://games.adult-fanfiction.org/story.php?no=600086731 Bayonsiders]] has War from ''VideoGame/{{Darksiders}}'' and Bayonetta from ''VideoGame/{{Bayonetta}}'' meet up, have sex, beat up angels, beat up demons, and have sex while beating up angels and demons at the same time. All while trying to stay in the continuity of both games.
* In [[http://www.fanfiction.net/s/5493333/1/Brother_Bubbles Brother Bubbles]], Space Marine Terminator finds himself in Rapture. Then meets a Little Sister.
* [https://www.fanfiction.net/s/1502834/1/Callisto-Meets-the-Powerpuff-Girls Callisto Meets the Powerpuff Girls]] sends one of the BigBad villains of ''Series/XenaWarriorPrincess'' to Townsville, and naturally, WesternAnimation/ThePowerpuffGirls are called in to save the day.

* [[http://www.fanfiction.net/s/8985296/1/Avengers-The-Next-Generation There’s a Time and Place to Die But This Ain’t]] crossovers ''Film/{{The Avengers|2012}}'' and ''Film/PitchPerfect''. It features Beca as Tony and Pepper's daughter and the rest of the cast as various superheroes.

* [[https://www.fanfiction.net/s/12381819/1/The-Connie-Ronnie-Switcheroo The Connie-Ronnie Switcheroo]] largely takes place in the ''WesternAnimation/TheLoudHouse'' universe, where two of the characters are observing an AlternateUniverse where one of those characters (Ronnie Anne Santiago) has swapped places with a character from ''WesternAnimation/StevenUniverse'' (Connie Maheswaran), resulting in the two characters befriending the opposite main characters (Lincoln Loud and Steven Universe) of those respective shows. This is achieved by using mutliversal transmitter goggles, which were apparently borrowed from [[Franchise/RickAndMorty Rick Sanchez]] of all people.

* [[http://www.fanfiction.net/s/5803383/1/Divine_Intervention Divine Intervention]] The [[Film/TheBoondockSaints MacManus brothers]] meet the [[Series/{{Supernatural}} Winchester brothers.]] And it is COOL.
* [[https://archiveofourown.org/works/14487714 Game of Mass Destruction]] crosses over multiple fandoms and has The Joker as president.

* Die Abenteuer Von Lucina Und Link'' is a German fanfiction. It's a crossover between ''VideoGame/TheLegendOfZeldaSkywardSword'' and ''VideoGame/FireEmblemAwakening''.

* ''VideoGame/Deltatraveler'' is a crossover between ''VideoGame/{{Undertale}}'' and ''VideoGame/{{Deltarune}}'', where Kris and Susie wake up in the underground.

* ''Fanfic/{{Wonderful}}'' is a crossover between ''Literature/{{Worm}}'' and ''VideoGame/TheWonderful101'' where "Worm" main character Taylor gains a different power set and becomes the hero Wonder Red.

** There are crossovers of ''WesternAnimation/TheLandBeforeTime'' with ''Franchise/StarWars'', ''[[Literature/InheritanceCycle Eragon]]'', ''VideoGame/MegaMan,'' and, in one case, ''VideoGame/{{Halo}}.'' [[http://www.fanfiction.net/s/3007925/1/Star_Wars_The_Land_Before_Time_A_Jedis_Destiny Amazingly, many find that the Star Wars/Land Before time crossover in question is actually good.]]

* ''Fanfic/BeyondTheSea'' crosses ''MyLittlePonyFriendshipIsMagic'' and ''{{BioShock}}''.

* The ''Manga/RanmaOneHalf'' fandom loves to create crossovers. There exist several archives devoted to them. Particularly common are crossovers with ''Franchise/SailorMoon'' which has a sub-genre called the FukuFic that has more fanfics written for it than most anime has fanfics total.

* ''VideoGame/DeltaTraveler'' is a crossover between ''VideoGame/{{Undertale}}'' and ''VideoGame/{{Deltarune}}'', where Kris and Susie wake up in the underground.

* '"Fanfic/WithPearlAndRubyGlowing'' is a MassiveMulitplayerCrossover that sees characters from various works of children's media attending a sexual assault support group.