Crossover / Fan Works

Crossovers are huge in all Fan Works, and some of the biggest reasons to create them. Without pesky things like Copyrights or Trademarks, it's incredibly easy to combine any and all works together.

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Fan Crossovers with trope pages

• Abyssal Plain is a crossover between Worm, Ward, and Pact, with the Undersiders and Breakthrough finding themselves in the Abyss with their dead teammates.
• Advice and Trust is primarily a Neon Genesis Evangelion fic, though it does feature Sayaka and Kyoko from Puella Magi Madoka Magica as minor members of the supporting cast (Word of God specifies that they aren't Magical Girls in this universe).
• In Amazing Fantasy, Izuku turns down turns down an alleyway instead of walking under a bridge and gets bitten by a genetically-altered (and possibly radioactive) spider, giving him the powers of Spider-Man. A few weeks later, a 47-year-old Peter Parker drops into Izuku's universe after a brawl with Mysterio.
• The Amazing Spider-Luz in: Across the Owl-Verse! is a crossover of The Owl House and Spider-Man where Luz has Spider-Man's powers.
• Anderson Quest: Killing Vampires and Werewolves and Leprechauns is a crossover between Hellsing Ultimate Abridged and Bloodborne where the infamous Alexander Anderson is dropped into the Hunter's Dream.
• Another Rainbow in Another Sky is a crossover between My Little Pony 'n Friends and The Care Bears Movie. Megan's roommate Kim is the same Kim from the film.
• Ash and Serena's Atomic Odyssey doubles as an Alternate Universe Fic for Pokémon: The Series after the X&Y saga, where Ash and his friends visit the Tandor Region, the setting of the fanmade game Pokémon Uranium.
• There is Ask Dark Hour Bakura, from the Yu-Gi-Oh! fandom, that is a Character Blog about a crossover between the characters of Duel Monsters and the world of Persona 3.
• Avalon is a cross between mainly Neon Genesis Evangelion and the Marvel Cinematic Universe as the forefront, but with other Marvel properties also being mentioned as well as references to other fictional settings existing within the story. So far Rosario + Vampire and the Stargateverse have explicitly been mentioned as part of the shared universe.
• The Bank Called, Your Reality Check Bounced brings the Hosts from Ouran High School Host Club into the post-Promised Day world of Fullmetal Alchemist. It goes about as well as you might expect, with Tamaki driving pretty much everybody up the wall.
• Between Minds crosses Portal and Half-Life.
• Beyond the Sea crosses My Little Pony: Friendship Is Magic and BioShock.
• Black Beast of Tengu City is a crossover between BlazBlue and Date A Live.
• Blood and Revolution is a Massive Multiplayer Crossover that starts and remains primarily Rurouni Kenshin with a heavy dose of Yu-Gi-Oh!.
• Bond Breaker has a Self-Insert of the author get pulled around the multiverse by a race of godlike beings wanting to find the answer to the "is there a God?" question. He gets to visit Naruto, NGE, Mass Effect, Harry Potter, The Legend of Zelda, Frozen, Sword Art Online, Star Wars, Warhammer 40,000, Fate/stay night and Wind Waker, to name a few.
• Breaking the Code is this between NUMB3RS and Foyle's War.
• Brutal Series, also known as Brutal, Horrible, and What If, is a series of crossovers between Hetalia: Axis Powers and the Hunger Games. Also Alternate Universe.
• but i wrote the words to the swan song: The fic is primary a Romeo and Juliet fanfic but Black Widow as she appears in the Marvel Cinematic Universe makes a brief appearance over half-way through and recruits Juliet to join the Avengers. However, Juliet turns down the offer and the fic moves on.
• Calvin & Hobbes: The Series has a crossover episode - "Calvin's Batman Adventure".
• A Certain Magical Friendship crosses My Little Pony: Friendship Is Magic with A Certain Magical Index using a magic portal that rebuilds characters as they move between the two settings. In Academy City, Twilight is a human cabal magician. In Ponyvile, Misaka is a pegasus who likes to keep lightning bolts in her fur. Which is fine, right up until villains start moving between the two worlds as well...
• Changes: Primarily a NUMB3RS and Without a Trace with a small appearance of Dr. Olivet where Kim Hall, Don's former fiancee, disappears and leaves behind their daughter for him to care for.
• Children of an Elder God: Between Neon Genesis Evangelion and the Cthulhu Mythos. The Children fight the Great Old Ones and the Outer Gods in lieu of Angels, and steal their powers upon slaying them.
• The Cries of Haruhi Suzumiya is a crossover between Haruhi Suzumiya and Higurashi: When They Cry.
• Colosseum of the Heart: Between Kingdom Hearts, Pokémon: The Series and Pokémon Colosseum, in which Sora ends up in Orre following the events of Kingdom Hearts III and joins up with Ash and Serena.
• Curse of the DualShock is a crossover with PAW Patrol and Minecraft in which the pups get trapped in the popular video game Minecraft and must beat the game to escape.
• Dante's Night at Freddy's is a crossover between Devil May Cry and Five Nights at Freddy's in which the protagonist of the former delivers a Curb-Stomp Battle to the villains of the latter.
• A Dark Knight over Sin City. Batman moves from Gotham to Sin City.
• Dean Thomas and the Curse of Jumanji is a crossover fic between Harry Potter and Jumanji
• Demon of Justice is older than FanFiction.Net and crosses Mobile Suit Gundam Wing with Oath of Swords, a high fantasy series.
• The Dragon and the Butterfly is a crossover fic between How to Train Your Dragon and Encanto. Here, Hiccup and Toothless left the archipelago before the former learned about the dragon nest. While searching for a new home, the two are caught in a storm and land in a magical part of Colombia...
• The Dragon That Will Pierce the Heavens is a One Piece and Fairy Tail crossover, primarily set in the former universe with growing elements from the latter. This is shown as early as the first chapter, where Original Character Hikari helps Luffy out with the help of her Celestial Spirits, eventually revealing herself as a Celestial Dragon and a Dragneel.
• Dungeon Keeper Ami is an improbable mix of Dungeon Keeper and Sailor Moon. And quite good, exploring the dissonance between the Magical Girl that Ami still wants to be, and the Anti-Hero — or even Anti-Villain — that she has to become in order to survive and have a chance of returning home.
• Empathy is a major crossover between Big Hero 6, Inside Out, and Home (2015).
• Event Horizon: Storm of Magic started off as a crossover between A Song of Ice and Fire, The Lord of the Rings, and Warhammer Fantasy by placing all three worlds on planets near to each other. Then the writer decided to add in a spacefaring Mega-Corp from 22nd century Earth that's more or less an Expy of Weyland Yutani.
• Eyes on Me is a Massive Multiplayer Crossover Series Fic predominantly revolving around Steven Universe.
• The Fairy and the Angel is a crossover between Yuri!!! on Ice and the Riordanverse.
• 5 Years Later is a crossover comic created by Kuro the Artist between the Danny Phantom series and the Ben 10 franchise, obviously set 5 years after where each of their respective series ended and features the titular superheroes teaming up to stop a threat that puts the entire Multiverse at stake.
• Flashpoint 2: Advent Solaris is a crossover of the DC Animated Movie Universe with Sonic the Hedgehog.
• The Good Hunter is a crossover between Bloodborne and Monster Girl Encyclopedia (MGE). Specifically, the story is about the Hunter from Bloodborne finding himself in the MGE 'verse, searching for a new home and life.
• Gospel of the Lost Gods is a crossover between Worm and A Song of Ice and Fire where the Chicago Wards end up Westeros and are forced to interact with the politics of the world.
• Hail to the King (Thuktun Flishithy) is a crossover between Godzilla and Neon Genesis Evangelion, using a amalgamated continuity for the former that also incorporates Zone Fighter. The rewrite replaces Zone Fighter with Ultraman.
• Hers Is the Fury is a crossover between (A Song of Ice and Fire) and (Ward), where Victoria Dallon is reborn as Victoria Baratheon, the eldest daughter of King Robert and Queen Cersei.
• Hunting the Unicorn is a Glee fanfic that became a three-way crossover with Firefly and Criminal Minds. After Blaine and Kurt get rescued from Blaine's stalker, Blaine is taken to the Blue Sun hospital for his concussion, where Simon Tam treats him. He later calls the BAU when Blaine's distressed but incoherent rambling gives Simon the suspicion that the stalker sexually assaulted Blaine.
• In Haunted Mansion and the Hatbox Ghost, following the "official" crossover with "The Nightmare Before Christmas" that the "Haunted Mansion Holidays" event is, the characters from this movie are sometimes featured in the stories. ...Ah, and the Grinch from "How the Grinch stole Christmas" made a cameo ONCE in a single-panel comic, too.
• Infinity Train: Blossoming Trail is an Infinity Train crossover with Pokémon: The Series where Chloe Cerise decides to find herself and grow not by going through a Pokémon journey, but by visting the infinite dimensions in the Infinity Train itself.
• Much like the story above, Infinity Train: Boiling Point is an Infinity Train crossover, but with The Owl House instead, detailing Boscha's journey after entering the titular train.
• Infinity Train: Star Finder is a crossover between Infinity Train and The Loud House where Stella boards the Train after a bad day on Gus Games & Grub.
• The Infinite Loops structure allows for almost any crossover and, in the background, is technically a Massive Multiplayer Crossover.
• The Institute Saga was initially a Superman/X-Men: Evolution crossover... then it crossed over with series such like Gargoyles and even other fanfics like Make a Wish.
• Invader Franny was an unfinished crossover between Nickelodeon cartoon Invader Zim and the children's book series Franny K. Stein where Franny starts attending the Skool, befriends Dib, and ends up time-traveling to a Bad Future where she and Dib have to help Franny's future self take down an evil future version of Dib named Dark.
• Jaune Arc, Lord of Hunger is a crossover between RWBY and Star Wars, specifically the Star Wars Legends continuity. The fic's premise sees Jaune gets possessed by the Force ghost of Darth Nihilus right before he enrolls into Beacon Academy. Chapter 17 features a brief crossover with Red vs. Blue in the form of a Fusion Fic where all the RvB characters are reimagined as mercenaries in the Star Wars galaxy.
• The first season of The Joys and Sorrows of Young Charles Finster is in fact a crossover between Nicktoon Rugrats and Disney cartoon Recess, with Chas Finster from the former cartoon being the nephew to Miss Muriel P. Finster from the latter cartoon and all the Rugrats' parents attending Third Street Elementary School from kindergarten to sixth grade.
• Khaos Omega uses this prominently by sending someone (usually the titular Amethyst Angel, a modified version of Galaxy Angel II's 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.]
  • Some of Khaos' stories even include characters created by other authors, including two Christmas-themed stories that guest-star the heroes of two other Galaxy Angel fanfictions (one of which inspired Khaos' own version behind the creation of Jace Davies, along with a What If?-style one for Marty Jordan's origins), and a planned sequel to a Mario story that notably includes a pitch-black OC Boo (named Dark Moonlight) from the original.
  • Some of Khaos' characters have also gone the other way:
    • The sequel to the What-Ifs (this one involving Kazuya and the Rune Angels while continuing to honor the original's variances in terms of who Arnold and Tact are in relationships within each parallel universe) sees Amethyst herself appear (suggested by Khaos himself for the chapter that would become Natsume's route for Kazuya as a way to avoid the Cross Dresser episode). Amethyst was identified as a Khaos character by the other author whose lead OC prominently appeared in Khaos' Christmas special (and one of his works, along with the Natsume-eventually route of the What-Ifs, are mentioned specifically as to how Arnold Williams (the lead OC of the author behind Khaos creating Jace Davies and Marty Jordan) and William Johnson (the lead OC of the author who identified Amethyst as Khaos') made it to the Christmas party).
    • Three works by former author "Witchan" featured Khaos' characters (Jet and Amethyst, plus Taylor 'Thundrana' Johnson and Georgia Millar, appear in a Mario Kart story that Khaos still references often (usually in tandem with Khaos' own sequel); Jet and Amethyst, alongside Rochelle, appear in the inspiration of a story series since fused with another author's own similarly-themed Pokemon stories (three, in particular, follow eventual Rainbow Angels Rosa Copeland, Roxanne Mazaki, and Jasmine Levesque as prostitutes though Jasmine goes out of her way to hide her being one); and Rochelle herself appears in a third where a tech malfunction by overloading leads to Rochelle creating an upgraded variant of the tech in question).
    • The Mario story mentioned above, where Roy hosts a party while Bowser's out (Wendy opts out and is the one to inform the co-conspirators of a fatal flaw in how Roy got the majority of the stuff), sees Jet appear as the referee of a hardcore game of dodgeball won by the aforementioned Dark Moonlight.
    • 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).
• Kyon: Big Damn Hero manages to become a crossover between Haruhi Suzumiya and TV Tropes, with Higurashi: When They Cry and bits of Half-Life added in as well.
• Last Child of Krypton: Between Neon Genesis Evangelion and The DCU (the rewrite focusing exclusively on the Superman side of the universe). Shinji was genetically modified with Kryptonian DNA when he was still a fetus, and became Superman when he grew up.
• The Last Seidr: Shortly after defeating the creature that's been attacking Muggleborns, twelve-year-old Harry Potter ends up transported from Hogwarts to a base owned by an agency known as S.H.I.E.L.D...right before a mysterious man calling himself "Loki" arrives.
• The story The Leap Forward, a crossover between NUMB3RS and Quantum Leap, which has Sam leap into Charlie's body to clear an innocent man's name.
• Legacy (Sekiro/Kimetsu no Yaiba) has Sekiro living hundreds of years into the time of Demon Slayer, where demons now roam the land due to Kibitsuji Muzan. Taking in an orphaned boy named Kiyoshi, Wolf decides to help the boy channel his thirst for revenge into becoming a legendary demon slayer and his successor as the One-Eyed Fox.
• Light and Dark DEUX: The New Adventures of Dark Soichiro is a Fan Sequel to Light and Dark The Adventures of Dark Yagami, which crosses over with other Troll Fics, with the description advertising the presence of Awesome de Britannia, and Enoby.
• Lighting Candles is a crossover between Rise of the Guardians and Big Hero 6. Specifically, it follows Tadashi after he dies and the Man in the Moon chooses him as a new Guardian.
• The Lone Traveler: The eponymous Traveler, Harry Potter from a Nightmares of Futures Past-type universe, moves through the multiverse, Quantum Leap style.
• The Long Road (2015) is an Alternate Timeline crossover story of the Rise of the Guardians and How to Train Your Dragon canons, not to be confused with a Dragon Ball Z fanfic of the same name.
• Of Lovebugs And Promises is an Avengers Kid Fic set in the White Collar universe with Phil Coulson being an agent of (a different state's branch of) the FBI's White Collar Unit.
• Originally, the intent was for My Brave Pony: Starfleet Magic to be completely separate from My Little Pony: Friendship Is Magic; but eventually it became a crossover, and then was fully integrated into a My Little Pony story.
• The Many Worlds Interpretation brings together dysfunctional academics from two fictional universities: the core crew from The Big Bang Theory interact with the Faculty of Unseen University. As Ponder Stibbons has a meeting of minds with Leonard Hofstadter, aided and hindered by Sheldon, Howard and Raj, women from two worlds have to act as a collective Team Mom for them.
• The Matrix Rewinds is a crossover between Life Is Strange and The Matrix.
• Megami no Hanabira is a crossover between the unrelentingly dark Shin Megami Tensei and the WAFF-y Girls' Love Eroge Sono Hanabira Ni Kuchizuke Wo.
• Michael Vs. Jason: Evil Emerges is a crossover Fan Film by Radical Talent, pitting Jason Voorhees from the Friday the 13th franchise against Michael Myers from the Halloween franchise.
• The Mountain and the Wolf: Game of Thrones meets Warhammer Fantasy. More specifically, the Mountain's duel with Oberyn Martell happens against someone very different, very large, and very keen about certain bloodthirsty gods...
• Mutant Storm is a Harry Potter/X-Men crossover where Jean Grey is Lily Potter's twin sister, and she decides to take Harry into her family after the events in Harry Potter and the Order of the Phoenix.
• Myrmidon by Ser Serendipity has Team 8 from Naruto take on a mission in Hunter × Hunter’s NGL.
• The Night Unfurls is one between Bloodborne and Kuroinu: Kedakaki Seijo wa Hakudaku ni Somaru, where the Good Hunter from the former ends up in the world of the latter.
• Object Shows Unite is a crossover between many different Object Shows ^note Battle for Dream Island, Inanimate Insanity, Object Universe, Object Mayhem, Inanimate Fight-Out, Challenge to Win, Brawl of the Objects, Object Overload, The Strive for the Million, Object Illusion, Object Land, Next Top Thingy, Object Havoc, Object Insanity, Brawl for Object Palace, Object Lockdown and Lockout, Paper Puppets Take 2, Object Madness, Object Invasion, Object Terror, Object Connects, Object Filler Again, Yet Another Gameshow, Battle for the Respect of Roboty, Ultimate Insanity, Modern Objects, Open Source Objects, Nonexistent Living, Animated Inanimate Battle, Incredible Items, and The Object Project as well as the author's own Original Characters.
• Gory Toons. Essentially, it's Happy Tree Friends, but the ironic shtick is more or less replaced with kid-friendly characters. And yes, the Happy Tree Friends themselves remain.
• This is basically the whole point of The Omniverse Event. Currently, the fandoms include Calvin and Hobbes, Bernice Summerfield, Yu-Gi-Oh!, and Star Trek: Voyager, with the promise of a lot more on the way.
• One Piece: A Smash Adventure by Spectre24 has One Piece characters crossover with various Nintendo franchises related to Super Smash Bros..
• Origin Story is a three-way crossover: of Buffy the Vampire Slayer and Power Girl, but set in the Marvel Universe. And it makes use of the "Halloween" episode for the justification of its crossover.
• Paradoxus crosses over World of Warcraft and Winx Club. 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 Chosen One 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 Chosen One. A little while after, Bloom and Stella are assassinated by the now multi-dimensional menace (in front of the former's kid daughter) and it's up to their daughters to try and fix the situation.
• Point Me at the Skyrim is a crossover between Ward and The Elder Scrolls V: Skyrim, with the superhero Antares (aka Victoria Dallon) awakening on the cart to Helgen with no memory of how she got there.
• Pokémon Crossing: Animal Crossing villagers live in the Pokémon world; several villagers become trainers, gym leaders, or join villainous teams.
• The Pros and Cons to living a triple life, between Persona 5 and Kingdom Hearts, in which the Keybearers are sent on a long-term undercover mission to Japan in search of the Master of Masters.
• Quinn In Wonderland: Quinn Fabray falls Down the Rabbit Hole and ends up in Wonderland.
• The Rod Squad briefly relocates Chip 'n Dale: Rescue Rangers from The '80s to The '70s, you can cross it over with Kojak.
• The fancomic Roommates by Ashe Rhyder and its spinoff Girls Next Door by Pika la Cynique are this — a crossover between Labyrinth, The Phantom of the Opera, Pirates of the Caribbean, Les Misérables, and occasionally Harry Potter — the many fandoms that appeared only once or twice are too numerous to count. Both by now run rather independently of each other, with a frequent Continuity Nod and Shout-Out to each other during their many, many storylines. And they are also awesome.
• The Royal Heights combines three animated shows and places them into a sci-fi/fantasy school setting. But not in the way one would expect.
• The Saga Of Tanya The Firebender brings over Tanya Degurechaff from The Saga of Tanya the Evil into The World of Avatar, as Tanya has been reincarnated into The Fire Nation during the Hundred-Year War.
• Say It Thrice is a blending of Danny Phantom and the film Beetlejuice. Two years post-movie, Lydia is forced by circumstance to move to Amity Park to live with her mother's sister, and befriends Danny, Sam, and Tucker.
• In A Shadow of the Titans, a Jackie Chan Adventures and Teen Titans (2003) crossover fanfiction, Jade ends up in the Teen Titans universe.
• Shattered Skies: The Morning Lights: By the same author as Stars Above and Respect below, this is a full-blown Crisis Crossover that brings together the casts of Sailor Moon, Cardcaptor Sakura, the Pretty Cure metaseries, Lyrical Nanoha, and Madoka Magica to try to save their universes and all of reality.
• The Shield's Dragon takes Yakuza-series protagonist Kiryu Kazuma post-Yakuza 6 and transports him to the world of The Rising of the Shield Hero, with his fighting-styles converted into the world's Sudden Game Interface. Ass-kicking ensues.
• Shinji And Warhammer 40 K is sort of an odd example. It is not a story where the universes meet, being more of a For Want of a Nail story about Shinji getting a large amount of Warhammer 40,000 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.
• In the Skyhold Academy Yearbook series, I Must Be Going manages to be both this trope and Self-Insert Fic. It's a crossover from the reader's point of view, being a merging of Dragon Age: Inquisition and The Princess Bride. However, it's a Story Within a Story, written and narrated by Varric Tethras; and to the people listening to him read it, it's a Self-Insert Fic because they're the ones in it.
• Superwomen of Eva 2: Lone Heir of Krypton: Between Superman and Neon Genesis Evangelion. 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 Power Girl and later Supergirl.
• A Spark of Genius is a three-way Crossover between Buffy the Vampire Slayer, Justice League and Girl Genius set in a DC universe that takes elements from both the cartoons and the comics. This story uses the "Halloween" episode for set up.
• Spinels New Best Friend: A crossover between My Little Pony: Friendship Is Magic and Steven Universe set at the end of the movie, where Spinel decides to run away after everything she did, deciding she's done too much to deserve forgiveness. She takes the warp pad to some random planet and rejuvenates herself... and is given to Pinkie Pie as a gift, and becomes her new friend.
• Stars Above: A crossover between Madoka Magica and Lucky Star, in which the magical beings and darkness of the former invade the normal, everyday schoolgirl life of the latter... and it blossoms into an unlikely Yuri Genre romance.
  • Respect, by one of the authors of Stars Above, crosses Madoka with Smile Pretty Cure!. It explores a What If? scenario in which Yayoi becomes a Puella Magi instead of a Precure.
• Even though the first story of A Sticky Situation remains solidly in the Digimon season three universe, the second story tosses several of the characters into Star Wars: The Clone Wars due to a dimension-traveling Digimon called Parallelmon (a Canon digimon, not an Original Character of the author). It is very well written and very entertaining.
• Storm on the Horizon: Max Caulfield, the protagonist of Life Is Strange, finds herself in the world of Horizon Zero Dawn a thousand years into the future as her time-traveling antics get out of hand, meeting a version of Horizon protagonist Aloy who is caught up in a temporal anomaly of her own, remembering the events of the game but somehow starting back at the beginning with all of her gear.
• Suicidal Overconfidence: Bitsy Brandenham, the central antagonist of Central Park, sets up a meeting with the Kingpin after her deal to buy Central Park goes south. It goes about as well as you’d expect.
• Super Miyuki World: Super Mario World with Lucky Star's Miyuki Takara as the protagonist, anyone?
• Superhero RPF is mainly a Ms Marvel / Loki: Agent of Asgard crossover (had some cameos from other Marvel titles like the Young Avengers).
• The Supermen is a crossover between Resident Evil (the game canon, not the films) and Justice League of America (comics canon, although it appears to be a mix of pre- and post-New 52). It involves Wesker ending up in the DC universe after the events of Resident Evil 5.
• Survivability: The Bleach universe with an original plot, starring characters from different K-Pop groups (Dong Bang Shin Ki, SHINee, Big Bang, Super Junior, B2ST, +other solo singers and actors).
• Tangled Adventures in Arendelle: Going on their honeymoon, the main cast of Tangled goes to visit Arendelle for a month… just at Queen Elsa's coronation.
• Tell Him All But The Truth is a Dark Fic crossover between The Secret Show and Psychonauts.
• Thousand Shinji: Between Neon Genesis Evangelion and Warhammer 40,000. A Sorcerer of Thousand Sons Legion fumbles a spell and travels back in time, finding a young Shinji Ikari and raising him.
• Three Special Steps is a crossover between Incredibles 2 and Meet the Robinsons.
• To Infinity is a BIONICLE and Halo cross-over.
• Tokimeki PokéLive! and TwinBee is a lighthearted Seinen style crossover between Pokémon, Love Live!, Tokimeki Memorial and TwinBee that focuses on female characters from the Pokémon games, Love Live! School Idol Festival, Love Live! Perfect Dream Project, Tokimeki Memorial:Forever with You and Twinbee with female characters from other franchises making cameo appearances in various main stories. And there's also a Shonen style (Although still pretty lighthearted) spin off called Tokimeki PokéLive! and Twinbee Side Stories that have male Pokémon characters making appearances depending on the story arc and in addition, focuses more on characters who don't appear in the main stories at all or who don't appear that often in the main stories.
• Transposition F is a crossover between RWBY and Dragon Ball Z.
• A Triangle in the Stars features Steven Universe and Gravity Falls in one combined world, with Steven Universe's world being the more primary one. Only Bill Cipher shows up there, at first…
• Ultrasonic is a crossover between Miraculous Ladybug and Zootopia, with Marinette being somehow transported to Zootopia with only Tikki for company, and her nemesis following her there a year later.
• The Vampire of Steel is a cross between Buffy the Vampire Slayer and Supergirl, set in a DC Universe where Sunnydale exists.
• Waiting In Sin is a crossover between Bleach and Harry Potter where Ulquiorra Schiffer is reborn as Harry Potter after his death.
• Wander over Foster's AU One-Shot Crossover between two cartoons Wander over Yonder and Foster's Home for Imaginary Friends.
• Water Aerobics for the Aquaphobic centers on most of Hogwarts' student body (and a couple of Death Eaters) being cursed into various forms after Umbridge brings them on a poorly-thought-out field trip to Jusenkyo from Ranma ½. Lara Croft is also mentioned in passing as giving no end of trouble to the Gringotts employees in Egypt.
• Weiss Reacts is primarily in the RWBY universe, but shares a universe with Chobits, Persona, the Nasuverse, Fruits Basket, Ai Yori Aoshi and AKB0048, with elements from Code Geass, Fire Emblem, Guilty Crown and League of Legends, of all things.
• When the Doctor Went to Downton is, as the title suggests, the Doctor going to Downton.
• With Pearl and Ruby Glowing is a Massive Multiplayer Crossover that sees characters from various works of children's media attending a sexual assault support group.
• When With Strings Attached was first conceived, it was supposed to be a Beatles/Dungeons & Dragons crossover. Luckily, the author quickly matured out of that notion, and the story turned into something far more interesting and complex, though its RPG roots are quite evident still.
• The White Wolf of Westeros is a crossover between Game of Thrones and The Witcher. It begins at the end of The Witcher 3: Wild Hunt 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.
• Worldfall is a crossover between Worldwar and Footfall set on an Earth that is 20 Minutes into the Future.
• Wonderful (Mazinja) is a crossover between Worm and The Wonderful 101 where "Worm" main character Taylor gains a different power set and becomes the hero Wonder Red.

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Fan Crossovers without trope pages

• Zany To The Max has an episode where the Warners (it's an Animaniacs fan series) enter the world of The Time Machine and try to help the Time Traveler find Weena as part of a contest. If they win, they will be able to take Weena home with them. They don't win. Homestripe Runner does instead. The episode is implied to turn into a Massive Multiplayer Crossover by the end.
  News Reporter: We just got reports of three super-powered sisters from the city of Townsville, Animenia, in the Warner Bros. studio.
  Yakko: Super-powered sisters? Townsville, Animenia? Yes! Come, Warners. We must prepare for tomorrow.
  Wakko: Why, Yakko? What are we going to do tomorrow?
  Yakko: The same thing we do every day, Wakko. Unfortunately, I have no idea what that is.
  Pinky and the Brain: They're zany, and they're the Warners, eight, eight, eight, eight, eight.
  • There is a crossover episode in every season.
  • And Season 3 consists of entirely crossover episodes!
• In Keena & the Defendants of Constan Magic Academy, starting in chapter 8, the group go to an Alternate Universe that features characters from the anime film Loups=Garous.
• Bayonsiders has War from Darksiders and Bayonetta from 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 Brother Bubbles, Space Marine Terminator finds himself in Rapture. Then meets a Little Sister.
• Callisto Meets the Powerpuff Girls sends one of the Big Bad villains of Xena: Warrior Princess to Townsville, and naturally, The Powerpuff Girls are called in to save the day.
• Die Abenteuer Von Lucina Und Link is a German fanfiction. It's a crossover between The Legend of Zelda: Skyward Sword and Fire Emblem: Awakening.
• There’s a Time and Place to Die But This Ain’t crossovers The Avengers and Pitch Perfect. It features Beca as Tony and Pepper's daughter and the rest of the cast as various superheroes.
• 1d4Chan's Codex The Covenant Codex is a set of fan-made rules for fielding Halo's Covenant in Warhammer 40,000 battles. The Hero Unit lore involves Covenant heroes battling IoM Space Marines; for example, Cheif Tartarus threatening to eat Blood Ravens Chapter Master Gabriel Angelos. There is also a codex for the Banished, the heretic Covenant from Halo Wars 2.
• The Connie-Ronnie Switcheroo largely takes place in the The Loud House universe, where two of the characters are observing an Alternate Universe where one of those characters (Ronnie Anne Santiago) has swapped places with a character from Steven Universe (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 Rick Sanchez of all people.
• The game-idea series Crossover X practically lives on this trope. It even uses the word "crossover" in its name.
• Delivered From Frollo crosses The Hunchback of Notre Dame with Fantasia.
• Deltatraveler is a crossover between Undertale and Deltarune, where Kris and Susie wake up in the underground.
• Divine Intervention: The MacManus brothers meet the Winchester brothers. And it is COOL.
• Game of Mass Destruction crosses over multiple fandoms and has The Joker as president.
• There's a fanfic series by GamesMaster64 called "The Legend of Hyrule Hearts" (shortened to "LoHH" by the author), which crosses over The Legend of Zelda and Kingdom Hearts ... for the first story anyway... Word of God states that the series will cross over into multi-crossover territory in later parts. The second part will establish pairings. Link is said to be paired with Sia, the titular princess of Lady Sia and Sora will be paired with Sheba from Golden Sun. How that will work out remains to be seen...
  • Word of God still hasn't mentioned how the characters will travel to the other worlds, but perhaps that'd get into spoiler territory.
    • Word of God states there are also 20 parts planned, with about five specials. This guy's in it for the long haul. The series appears to be dead, but the author blames it on writer's block and real-life being busy.
• This fic, a crossover of Chobits with, of all things, Assassin's Creed (trope page here). Word from the author is that the eventual sequel will add Midori Days to the mix as well.
• Only Void Remains is a crossover of Bungo Stray Dogs and Puella Magi Madoka Magica and follows the plot of the Light Novel Dazai Osamu and the Dark Era roughly. Uncommonly for the genre, it is an amalgamation of the two universes (the characters from Bungo Stray Dogs follow the laws of the Madoka Magica universe) and the characters of the franchises don't meet eachother. The endnote implies that it is part of a larger crossover universe.
• Portalborn is actually inspired by the Portal 2 Mod for Skyrim. In starts off using the original elements of Fall of the Space Core after pitting The Dragonborn with the weird and cooky Doug Rattmann. It gets crazy, then evolves with a mysterious and adventurous plot.
• Raquaza Master's Pokemon Squad fanfics are supposed to combine the characters from Pokémon, KaBlam!!, Barney & Friends (Barney is going to be one of the main antagonists), Danny Phantom, Animaniacs, Sesame Street (Elmo's going to be an upcoming villain), many video games, and much, much more.

• Seanzilla115's Multi crossover stadium, This Fanfiction community contains some of the greatest crossover stories by the greatist authors Fanfiction.Net has to offer.
• Takamachi Nanoha of 2814 is a Magical Girl Lyrical Nanoha Crossover with Green Lantern. Then, it started to cross over with everything by chapter 3. Written by the almost infamous Shadow Crystal Mage, so you know it's good. Now with its own page.
• To Kill A Thief is Phantom Thief Jeanne meets Death Note.
• This fanfic is a shared universe for the Transformers and Marvel characters. as of 2013 a standalone Marvel and an official crossover story are yet to be written, but there are plans to do so.
• These two videos make a sort of crossover between Lucky Star and Haruhi Suzumiya.
• While not a Fanfic, this Youtube user makes videos which present "what if" situations dealing with television logos, which also includes gems like "What if Steven Bochco collaborated with 4K!ds Entertainment?".
• Due to the increased popularity of One Piece: A Smash Adventure, other users have attempted to make similar crossovers based on this. Most notable is Game2002 who basically took the same concept, this time with Touhou characters. His crossover, Touhou: Journey to the Smashing Beyond was also a huge hit among fans.

• Operation Epic Beer Run and And Miles To Go Before I Sleep cross The Martian with the Marvel Cinematic Universe via Dr. Beck being one of Bucky Barnes's descendants.

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Common Crossovers

• In Anime fanfiction (and sometimes in other media), a quite common way to establish a plot, especially in Peggy Sue fics, is to have a wish be granted by Belldandy or her sisters. Whether this crossover is minor or major varies between fics.
• The Avengers crossed with The Hunger Games has some surprisingly good crossovers, including the heartbreaking Embrace the Fire and the less heartbreaking Something To Avenge.
• Buffy the Vampire Slayer has a natural crossover point in the second season episode "Halloween", in which the main characters turn into their costumes for the night. The portal Buffy jumps through in the Fifth Season finale also provides a great opportunity for Buffy to visit some other show or story, as does the presence of Reality-Warping vengeance demons.
• CatDog has even been crossed over with the anime Love Live! School Idol Project of all things on DeviantArt. Dog and Honoka Kousaka as friends, anyone?
• A favourite for many seems to be Doctor Who, due to the remarkable ease with which the Doctor can be inserted in any story just by having the TARDIS land there.
  • The first well-known example is 1981's "The Doctor and the Enterprise" by Jean Airey, which crosses Doctor Who and Star Trek: The Original Series, when the Fourth Doctor's TARDIS materializes in the transporter room of the USS Enterprise on her way home at the end of her Five Year Mission.
  • One of the most famous, The Man with No Name, is a Firefly / Doctor Who'' crossover, which some say should be officially added to Canon.
  • Yet it VERY strangely lists one of the unofficial rules of the internet dealing with crossovers (specifically, rule ⑨
  • There's also A Hero, a crossover with Puella Magi Madoka Magica which subverts most Doctor Who crossover formulas by instead inserting Dalek Sec to fix the mess.
  • Another crossover that's become increasingly popular is Superwho, which combines Doctor Who with Supernatural.
    • Add one more show, Sherlock, to get Superwholock, which has become quite popular on Tumblr.
  • All it took was one scene where a pony had a David Tennant-like hairstyle and an hourglass on his quarter. The result is that under crossovers at FanFiction.Net, Doctor Who is the most popular thing to cross into the world of My Little Pony: Friendship Is Magic, beating out Sonic the Hedgehog.
  • Children of Time crosses Ten's era with Sherlock Holmes and Sherlock Holmes in the 22nd Century. Holmes and Watson take Martha Jones' place in Season 3 as Companions, with just a handful of episodes staying close to the original. The Eleventh Doctor is planned to make an appearance eventually...
• The Dresden Files has a lot of crossovers, including a rare crossover with Buffy that doesn't involve its "Halloween" episode. Higher Stakes: A Fanfiction of the Dresden Files is complete. It contains spoilers for Changes and the Buffy Season 8 comics, replaces everything after Changes, and after the Buffy'' comics arc "Time of Your Life".
• Everything Is Broken is about Happy Tree Friends characters playing My Little Pony: Friendship Is Magic creepypasta games that come to live and attack them.
• Gabriel Blessing is well known for his two Fate/stay night crossovers:
  • The Hill of Swords, a The Familiar of Zero crossover wherein Louise summons Shirou as her familiar. This Fan Fic revived the whole concept of "Let's have Louise summon a different person than Saito !"
  • In Flight, a Sekirei crossover where Shirou discovers his Not Quite Dead mother, Takami Sahashi, and replaces Minato as the Ashikabi of the North.
• Fanfic-wise, it's almost impossible to find a fandom that doesn't have a crossover with Harry Potter.
  • There are crossovers of The Land Before Time with Star Wars, Eragon, Mega Man, and, in one case, Halo. Amazingly, many find that the Star Wars/Land Before time crossover in question is actually good.
    • Found the cross between Harry Potter and The Land Before Time!
    • "Voldemort has found a way to go back thousands of years, to the time of the great dinosaurs"? That's not a promising opening line. There's even a Land Before Time MassiveMultiplayerCrossover series on FanFiction.net.
  • There is a really good one between Harry Potter and Final Fantasy VIII that starts when Harry, age 5, is magically transported to the world of FF8 and once there he becomes a fine Gunblade fighter and is somehow able to use FF8 magic and do everything one can in the game... without using Guardian Forces. He later has to go back to his own world, where an evil Dumbledore lays in waiting... See here for the prequel+ Philosopher's Stone arc, here for the Chamber of Secrets arc and here for the Prisoner of Azkaban arc. It's a pity that the third arc is not finished...
  • There's a small collection of Calvin and Hobbes/Harry Potter crossovers, all involving Calvin being a wizard. Give em a look. This one is particularly good so far.
  • Harry Potter in The Princess Bride. Hermione dreams the people she knows into the plot of the movie, with herself in the role of the Grandson being read the book by Dumbledore. No, really!
  • One involved the plot of Pretty Little Liars being re-imagined in the Potter universe. Unlike most other crossovers, the characters of both series don't actually meet. Here it is
  • Since both Harry and Edward Elric are looking for the Philosopher's Stone at some point, there's a lot of crossover fanfiction with Fullmetal Alchemist.
  • Snakeskins is, without a doubt, one of the best fanfics in the whole crossover with Hetalia: Axis Powers fandom, in which the two universes are blended amazingly and England and Italy are still their immortal Nation-tan selves while they're at Hogwarts. It... sounds kinda confusing, but it's a lot simpler in context.
  • Harry Potter Becomes a Communist does some crossovers with other Harry Potter fanfics. This consists of, to date, brief appearances by the Professor Quirrell from Harry Potter and the Methods of Rationality, Ebony Dark'ness Dementia Raven Way from My Immortal, and Rhysenn Malfoy from The Draco Trilogy.
• Highlander. You can dump Duncan or Connor or any of the other Immortals in almost any historical period; or assume, for a series set today that this or that character is Immortal; or for series set in the future, assume that someone from a 20th/21st C. series was a Highlander and hadn't lost his/her head before then. Of all the methods that Law & Order: UK fanfic writers used to revive the murdered DS Matt Devlin, revealing that he was an Immortal—as well as technically crossing over with another series in the story Declassified by revealing that he was also Archie Kennedy—might have been the most creative.
• There are a lot of fan arts involving Kaa the Snake hypnotizing various victims. Google search "Kaa" and you'll see what the deal is.
• Two Law & Order: UK fanfics:
  • One that crosses over with Highlander and Horatio Hornblower has Matt Devlin recovering from the bullet wounds he sustained and explaining to a stunned Alesha and Ronnie that he's immortal and is really Archie Kennedy of the latter series (also probably lampshading Jamie Bamber's Chronically Killed Actor status).
  • Another sent Matt and Ronnie to Washington, DC to work with the NCIS team. Rather amusing considering that a) Jamie Bamber eventually began a recurring role on the show, and b) the team actually did work with British Coppers at one point.
• 4 crossovers with Looney Tunes and Winx Club have been done by looneywriter and kidswbyungsta. Sure enough, keeping in with the Looney Tunes style of humor, as well as adding characters from Animaniacs, Tiny Toon Adventures, and Pinky and the Brain may have helped them grow to be loved by many on FanFiction.Net.
• One author has crossed over Megas XLR with Harry Potter, Lilo & Stitch and Phineas & Ferb, crossed over Phineas & Ferb with Super Sentai and Kamen Rider, and then combined all the previous into a Mega Crossover.
• One of the mst prevalent type of My Little Pony: Friendship Is Magic fan fics and fan works in general. The most regular kinds are those such as Better Living Through Science and Ponies (Portal) and Turnabout Storm (Ace Attorney), where another series' characters are transported to Equestria, sometimes turning into ponies in the process, and Fusion Fics such as Fallout: Equestria (guess) and Friends of a Solar Empire (Sins of a Solar Empire).
  • Another example is The Little Pony Legend, crossing over Friendship is Magic with The Legend of Korra. It's also something of a self-insert fic, as the ponies are "inserted" into Korra's plot and vice versa over the course of the seven fics present.
• It's easier to count the things that Naruto hasn't had crossovers with when it's had crossovers with The Boondocks, Duke Nukem, Aqua Teen Hunger Force, Mean Girls, Godzilla, Friday the 13th and probably the strangest with Married... with Children.
• There are a few fics that cross over all the Nicktoons. One that does this along with extreme AU along with Alternate History (Vlad is now king of an Fictional Counterpart of America!) would be Chess Piece by Neo Yi. It's filled with tons of continuity nods and has everything, from The Wild Thornberrys, Invader Zim, and Dora the Explorer to Doug, Aaahh!!! Real Monsters, CatDog, and My Life as a Teenage Robot. Seriously; it is also awesome.
• Decent Pokemon/Digimon crossovers are not that common in fanfiction, but of late some interesting new submissions have popped up.
• The Ranma ½ fandom loves to create crossovers. There exist several archives devoted to them. Particularly common are crossovers with Sailor Moon which has a sub-genre called the Fuku Fic that can involve this type of crossover, but primarily involves Ranma in a Sailor Fuku.
• Due to their popularity, it's very easy to find on deviantArt crossovers involving The Runaway Guys, mostly by ThatOneNPC. The guys have crossed over with such works as The Wizard of Oz, Alice in Wonderland, Portal 2, Slender, Professor Layton vs. Ace Attorney and My Little Pony: Friendship Is Magic (no really), to name a few.
  • Each of the guys themselves has been subject to individual crossover fanart. For instance, here is fanart crossing over Chuggaaconroy with Professor Layton. (Chugga liked it, by the way.)
• Is there anyone Sonic the Hedgehog hasn't met yet? The blue hedgehog has had crossovers with Percy Jackson, Godzilla, Transformers, Halo, iCarly, Gorillaz, the Mighty Ducks, Tengen Toppa Gurren Lagann, Strawberry Shortcake and Tinkerbell. Are any of these even remotely connected?
  • But we all know who the big winner is...
  • This fanfiction crosses over Sonic the Hedgehog with the cast of My Little Pony: Friendship Is Magic, in a reimagining of the plot of Sonic Generations. It goes far beyond what the original game gives, showing the author did their research. For instance, Ponyville serves as the central hub, similar to the White Void in the game, the Death Egg Robot battle in the original is replaced with Nightmare Moon and in this fanfiction, Tails fights Metal Sonic instead of Sonic, possibly a reference to Sonic the Hedgehog 4. The author has even adapted the updated canon of Friendship is Magic into the fanfic. However, how the author intends to implement alicorn Twilight is currently unknown.
  • Sonic Mania & Hatsune Miku: A very well-done Game Mod of Sonic Mania that replaces the titular character with Hatsune Miku wearing a Sonic parka, amongst a few other things.
  • It's crazy just how many crossovers on FanFiction.Net exist between Sonic the Hedgehog and Super Mario Bros.. Sure, this may have become canon but authors were doing it way before then.
• Spider-Man has a slew of crossovers on FanFiction.Net. This one crossed with the Teenage Mutant Ninja Turtles, and this one crossed with House are quite good.
• An author on FFnet has created a crossover between Star Wars and Halo where the characters of Star Wars: Republic Commando (and some friends and enemies) meet Master Chief and company in the Halo universe. There is a sequel that takes place mostly in the Star Wars universe during the events of the Original Trilogy.
• Star Wars and Star Trek. The rivalry between their fanbases and The The Ultimate Showdown of Ultimate Destiny makes it a bygone conclusion feature some, and for those to require at least one major battle between the United Federation of Planets and the Galactic Empire, but there are certain exceptions.
  • Another good one is Unity by notable contributor SF Debris. What is a wormhole was connected from the Delta Quadrant circa Voyager's fifth season to the Star Wars Universe circa early Return of The Jedi, (disrupting the Rebel Alliance's attempt to attack the second Death Star.) Involved every character from TNG forward-moving well into the future and exploring all the potential interactions in detail.
  • To complete the trifecta of renowned Star Wars vs. Star Trek fanfics, there's StarCrossed.
• At least 300 crossovers of Total Drama are available on fanfiction.net
  • One writer has written the aptly named "Total Crossover" series. They are currently working on 3 installments at the same time. The scenes with Jimmy Neutron border on Revenge Fic.
• Rule ⑨: If it exists, there is a crossover with Touhou Project. The series even has its own article.
• One author has even crossed over (at various times) Transformers with Knight Rider, The Real Ghostbusters, Masters of the Universe, Sailor Moon, Inuyasha, and Judge Judy.
• Likewise, you will be able to find crossovers between Twilight and just about anything
  • Not many Crossover fics have managed to be as awesome as Sherlock Holmes vs Edward Cullen.
• The longtime crossover champion for TV shows is The Witness by Michele Martin, which managed to cross Forever Knight, Highlander, The X-Files, Quantum Leap, and the Starman TV series. Believe it or not, the fic manages to keep all those balls in the air successfully, and even bring in cameos from a few other series, all while following a coherent plot and keeping the characters in character!

• Solo Endeavors is a crossover between Super Smash Bros., Persona 5, and Punch-Out!!, focused on Jackie, a member of the band Monsta X, going to Tokyo.

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