This is an index for fan works set in the Marvel Universe as a whole. See also Spider-Man and X-Men fan works.
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Audio Plays
- Ghost Rider: The Audio Drama (crossover with Kingdom Hearts)
Fan Fiction
- Civil War Hulk
- A Crooked Man
- Development Heaven
- Earth 27 M
- Earth 717
- Except It Abide in the Vine
- families collide
- FIRE! (DarkMark)
- Loki: Agent of Doomgard
- Marvel Crossroads
- Marvel Infinites
- Marvel Iron Age
- Maverick Solutions
- Motion Practice
- Polarity
- A Prize for Three Empires
- The Rogue Symbiote
- San Jose Avengers
- A Small Blue Pocket Universe Learns About Herself
- Sunshine Superman
- Superhero RPF
- We Won't Tell You to Heel
Fan Fiction — Crossovers
- Amazing Fantasy (crossover with My Hero Academia)
- Anime X Marvel
- Re:Zero - The Princess and the Spider (crossover with Re:Zero)
- Demon Slayer Dark Fury (crossover with Demon Slayer: Kimetsu no Yaiba)
- Naruto Mystic Adventures (crossover with Naruto)
- Highschool DxD: The Spirit of Vengeance (crossover with Highschool DXD)
- My Hero Academia: Armored Adventures (crossover with My Hero Academia)
- Danmachi: The Last King (crossover with Is It Wrong to Try to Pick Up Girls in a Dungeon?)
- JoJo's Bizarre Adventure: The First Avengers (crossover with JoJo's Bizarre Adventure)
- Kaguya-Sama: Love is War - Queen of Thieves (crossover with Kaguya-sama: Love Is War)
- Kill la Kill: The Web of Life (crossover with Kill la Kill)
- Spy x Family Project: W.E.B. (crossover with Spy X Family)
- Neon Genesis Evangelion: The Spider's Thesis (crossover with Neon Genesis Evangelion)
- Jujustu Kaisen: The Spider's Curse (crossover with Jujutsu Kaisen)
- Konosuba: The Adventures of Spider-Ham (crossover with Konosuba)
- Date A Live Spirit Of The Spider (crossover with Date A Live)
- The Eminence In Shadow The Shadows Web (crossover with The Eminence in Shadow)
- Rosario + Vampire - Scarlet Knight (crossover with Rosario + Vampire)
- AR1996 Ultraverse (Massive Multiplayer Crossover with DC Comics, Power Rangers, Super Sentai, among others)
- Avenger Goddess (crossover with Wonder Woman (2017))
- Avenger Knight (crossover with Batman)
- Avenger of Steel (crossover with Man of Steel)
- An Average Everyday Supergoddess (crossover with Buffy the Vampire Slayer)
- Christian Grey vs. Pepper Potts (crossover with Fifty Shades of Grey)
- Coreline (Massive Multiplayer Crossover with The Legend of Korra, DC Comics, Neon Genesis Evangelion, and Pokémon, among many others)
- The Dark Avenger (crossover with Batman)
- Earth's Mightiest Huntsmen (crossover with RWBY)
- The Indomitable Pale Spider (crossover with Persona 5)
- The Institute Saga (crossover with Superman)
- Iron Hero 7 (crossover with Big Hero 6)
- The Impossible She Hulk (crossover with Kim Possible)
- Justice League: Thunderer (crossover with the DC Animated Universe)
- The Last Son (crossover with Superman)
- A Man of Iron (crossover with A Song of Ice and Fire/Game of Thrones)
- The Man Out of Time (crossover with My Hero Academia)
- The Marvel DC Project (crossover with The DCU)
- Marvel Gems Universe (crossover with Steven Universe)
- The Marvelous World of DC (crossover with The DCU, Vertigo Comics, Image Comics, Dark Horse Comics, and Harry Potter)
- Harry Potter and the Guardian's Light (Crossover with Harry Potter, DC Comics, Vertigo Comics and Dark Horse Comics)
- Mischief (MHA)
- Mortal Kombat vs Marvel Universe (crossover with Mortal Kombat)
- Of Maple Syrup Skeletons And War Crimes (crossover with Overlord)
- The New Era: Mortal Kombat vs Marvel Universe (crossover with Mortal Kombat)
- Of Quirks and Magic (crossover with My Hero Academia)
- One Foot – Another Multiverse SI (crossover with Bleach, Soul Eater, Avatar: The Last Airbender)
- Origin Story (crossover with Buffy the Vampire Slayer and Power Girl)
- ...Or is He Both? (crossover with The Rising of the Shield Hero)
- Six (crossover with The Legend of Zelda, Harry Potter, Mortal Kombat, Nazi Zombies, My Little Pony: Friendship Is Magic)
- Remnant's Mightiest Heroes (crossover with RWBY)
- SmallvilleX: Evolution (crossover with Smallville)
- Snuggles the Symbiote (crossover with Worm)
- The Spacebattles Multiverse Project (Massive Multiplayer Crossover)
- Spider-Ninja (crossover with Teenage Mutant Ninja Turtles)
- Spider-X (crossover with X-Men: Evolution)
- Spidey vs. the Forces of Evil (crossover with Star vs. the Forces of Evil)
- Suicidal Overconfidence (crossover with Central Park)
- The Superwomen of Eva series (crossover with Neon Genesis Evangelion)
- Tales of the Otherverse (crossover with The DCU)
- With A Snap (Massive Multiplayer Crossover with Star vs. the Forces of Evil, DC Comics, Doctor Who, and My Hero Academia, among many others)
Web Animation
Web Comics
Web Videos
- Deadpool: The Musical
- Hero House (Massive Multiplayer Crossover with DC and Transformers)
- Super Therapy! (alongside The DCU & others)