Featured Characters:
- Thanos (First appearance)
- Avengers
- Black Widow (Headhunter) (First appearance)
- Captain America (Steve Rogers)
- Guardians of the Galaxy
- Star-Lord (Drift) (First appearance)
- Groot
- Rocket Raccoon
- Gamora
- Deadpool (Wade Wilson)
- Ravenpool (First appearance)
- Cuddlepool (First appearance)
- X-Force
- X-Men
- Agents of Atlas
- She-Hulk (Jennifer Walters)
- Iron Man (Tony Stark)
- Mystique (Raven Darkhölme)
- Thor
- Doctor Doom
- Silver Surfer (Norrin Radd)
- Blade (Eric Brooks)
- Daredevil (Matt Murdock)
- Ghost Rider (Johnny Blaze)
- Black Widow (Natasha Romanoff) (First appearance)
- Venom (Eddie Brock)
- Extreme Venom (Lee Price) (Secondary style)
- Taskmaster (Tony Masters)
- Captain Marvel (Carol Danvers)
- Black Panther (T'Challa)
- Ant-Man (Scott Lang)
- Loki (First appearance)
- Carnage (Cletus Kasady) (First appearance)
- Venom (Eddie Brock) (Earth-TRN1703) (First appearance)
- Dark Phoenix (Jean Grey)
- S.H.I.E.L.D.
- Spider-Man / Iron Spider (Peter Parker)
- Spider-Man (Peter Parker) (No Way Home) (First appearance)
- Michelle "MJ" Jones (First appearance)
- Hawkeye (Kate Bishop) (First appearance)
- Hawkeye (Clint Barton) (First appearance)
- Green Goblin (Norman Osborn)
- Masters of the Mystic Arts (First appearance)
- Doctor Strange (Stephen Strange) (First appearance)
- Mary Jane Watson
- Prowler (Aaron Davis)
- Moon Knight / Mr. Knight (Marc Spector / Steven Grant) (First appearance)
- Scarlet Witch (Wanda Maximoff) (First appearance)
- Thor Odinson (First appearance)
- Mighty Thor (Jane Foster) (First appearance)
- Spider-Woman (Gwen Stacy) (First appearance)
- X-23 (Laura Kinney)
- Hulk (Bruce Banner)
- BriteStar (First appearance)
- Captain America (Sam Wilson) (First appearance)
- Spider-Man 2099 (Miguel O'Hara) (First appearance)
- Spider-Man (Miles Morales) (First appearance)
- Guardians of the Galaxy (First appearance)
- Drax the Destroyer (First appearance)
- Mantis (First appearance)
- Young Adult Groot (First appearance)
- Hela (First appearance)
- Sakaaran Champion Hulk (Bruce Banner) (First appearance)
- Sylvie (First appearance)
- Loki, God of Stories (First appearance)
- Brotherhood of Mutants (First appearance)
- Magneto (Max Eisenhardt) (First appearance; dies)
- Wolverine (Logan) (Pen & Ink) (First appearance)
- Deadpool (Wade Wilson) (Pen & Ink) (First appearance)
- Peelverine (Peely) (First appearance)
- Black Panther (Shuri)
- Gwenpool (Gwen Poole)
- War Machine / Iron Patriot (James Rhodes)
- Captain Jones (John Jones) (First appearance)
- Black Cat (Felicia Hardy)
- Ghost Ri-Durrr (Beef Boss) (First appearance)
- Weapon X (Logan) (First appearance)
- Mephisto (First appearance)
- Spider-Woman (Jessica Drew)
- Agony (Teddy Paine) (First appearance)
- She-Venom Symbiote host (First appearance)
- Fishpool (First appearance)
- Big Hero 6 (First appearance)
- Baymax (First appearance)
- Spider-Gang (First appearance)
- Spider-Punk (Hobie Brown) (First appearance)
- Spider-Man Noir (Peter Parker) (First appearance)
- Spider-Man (Peter B. Parker) (First appearance)
- Doom 2099 (Victor von Doom) (First appearance)
- Thunderbolts (First appearance)
- White Widow (Yelena Belova) (First appearance)
- Winter Solder (Bucky Barnes) (First appearance)
- Fantastic Four (First appearance)
- Thing (Ben Grimm) (First appearance)
- Human Torch (Johnny Storm) (First appearance)
- Mister Fantastic (Reed Richards) (First appearance)
- Invisible Woman (Sue Storm) (First appearance)
Supporting Characters:
- Venom Symbiote
- Carnage Symbiote (First appearance)
- Venom Symbiote (Earth-TRN1703) (First appearance)
- Agony Symbiote (First appearance)
- She-Venom Symbiote (First appearance)
- Ant-tonio Banderas (First appearance)
- Phoenix Force
- Spider-Ham (Peter Porker) (First appearance)
- Miss Minutes
- Headpool (Wade Wilson) (First appearance)
- Pig-Gwen
- Baby Groot (First appearance)
Antagonists:
- Galactus
- Kingdom of Doom (First appearance) (Disbands)
- Wanderer / Doctor Doom (Victor von Doom) (First appearance)
- Doombot (First appearance; dies)
- Mysterio (Quentin Beck) (First appearance)
- Emma Frost (First appearance)
- Meowtooth (Meowscles) (First appearance) (Joins)
- Doom's Chosen / Ultra Doom (First appearance) (Joins)
Other Characters:
- Doom Henchmen (First appearance)
- Stark Industries
- Avengers (Statue)
- X-Men (Logo)
- Jeff the Land Shark (Drawing)
- X-Men (Logo)
- S.H.I.E.L.D. (Logo)
- Fantastic Four (Logo)
- Thing (Ben Grimm) (Corpse, skeleton or other remains)
- Human Torch (Johnny Storm) (Corpse, skeleton or other remains)
- Mister Fantastic (Reed Richards) (Comatose or unconscious)
- Invisible Woman (Sue Storm) (Comatose or unconscious)
- Ultron (Corpse, skeleton or other remains)
- Novak (Drawing)
- Monster from the Sea (Drawing)
- Cynthia von Doom (Statue)
- Galacta (Gali) (Depiction)
- Odin (Mentioned)
- Bolivar Trask (Mentioned)
- Mar-Vell (Mentioned)
- Future Foundation (Mentioned)
- Cagliostro (Mentioned)
- Agamotto (Mentioned)
- Tony Stark (Mentioned)
- Vision (Mentioned)
- Mary Janes (Mentioned)
- Tinkerer (Mentioned)
- Khonshu (Mentioned)
- Muramasa (Mentioned)
- Scarlet Witch (Wanda Maximoff) (Mentioned)
- Rogue (Anna Marie) (Referenced)
- Gambit (Remy LeBeau) (Referenced)
- Weapon X (Mentioned)
- Avengers (Referenced)
- Steve Rogers (Mentioned)
- Odin (Earth-TRN1704) (Mentioned)
- Grandmaster (En Dwi Gast) (Mentioned)
- Time Variance Authority (Mentioned)
- He Who Remains (Mentioned)
- Professor X (Charles Xavier) (Mentioned)
- Moon Knight (Marc Spector) (Referenced)
- Thanos (Referenced)
- Doctor Strange (Stephen Strange) (Referenced)
- Silver Surfer (Norrin Radd) (Referenced)
- Thor (Referenced)
- Iron Man (Tony Stark) (Referenced)
- Galactus (Referenced)
- Hellfire Club (Mentioned)
- Hellfire Gala (Mentioned)
- Bast (Mentioned)
- Dora Milaje (Mentioned)
- Weapon X (Mentioned)
- Ghost Rider (Johnny Blaze) (Referenced)
- Black Panther (Mentioned)
- Billy Maximoff (Mentioned)
- Tommy Maximoff (Mentioned)
- Mayday Parker (Mentioned)
- Doctor Doom (Victor von Doom) (Mentioned)
- Red Room (Mentioned)
Races and Species:
- Titans
- Humans
- Chitauri
- Mutants
- Flora colossi
- Asgardians
- Halfworlders
- Zenn-Lavians
- Human-Vampire Hybrids
- Kree
- Ants
- Symbiotes
- Frost Giants
- Zen-Whoberi
- Pigs
- Celestials
- Demons
- Abilisks (Toy)
- Spiders (Mentioned)
- Star Children (Mentioned)
Realities:
- Earth-TRN1703 (First appearance)
- Earth-616 (Sections displaced to Reality Zero)
- Earth-Unknown (Sections displaced to Reality Zero)
- Earth-Unknown (Sections displaced to Reality Zero)
- Earth-Unknown (Sections displaced to Reality: UN-81)
- Earth-TRN1704 (First appearance) (Sections displaced to Reality: UN-81)
- Earth-928B (Mentioned)
- Earth-138B (Mentioned)
Locations:
- Apollo (First appearance)
- Helicarrier 64 (First appearance)
- Doom's Domain (First appearance)
- House of Doom (First appearance)
- Vault of Doom (First appearance)
- Sentinel Graveyard (First appearance)
- Retail Row (First appearance)
- Jennifer Walters' Office (First appearance)
- Doom's Throne (First appearance)
- Quinjet Patrol Sites (First appearance)
- Trask Transport Truck (First appearance)
- Ant Manor (First appearance)
- Wakanda
- Panther's Prowl (First appearance)
- Upstate New York
- Heroes Park (First appearance)
- The Collection (First appearance)
- Artemis (First appearance)
- Helios (First appearance)
- Weapon X Lab
- Raft
- Latveria
- Doomstadt
- Castle Doom
- Doom's Courtyard (First appearance)
- Doomstadt
- Stark Island (First appearance)
- Microverse (Mentioned)
- Xavier's School for Gifted Youngsters (Mentioned)
- Kamar-Taj (Mentioned)
- United States of America (Mentioned)
- Sokovia (Mentioned)
- Mephisto's Realm (Mentioned)
- Klyntar (Mentioned)
- Yancy Street (Mentioned)
Items:
- Infinity Gauntlet
- Infinity Stones
- Black Widow's Batons
- Star-Lord's Uniform
- Captain America's Shield
- Stormbreaker
- Iron Man Gauntlet
- Deadpool's Hand Cannons (First appearance)
- Adamantium
- Wolverine's Suit
- X-Uniforms
- Iron Man Armor Model 37
- Doctor Doom's Armor
- Stark Robots (First appearance)
- Doctor Doom's Arcane Gauntlets (First appearance)
- Doctor Doom's Mystical Bomb (First appearance)
- Groot's Bramble Shield (First appearance)
- Stark Industries Energy Rifle (First appearance)
- Mjolnir
- Gorgers (First appearance)
- Panther Habit
- Stark Jetpack (First appearance)
- Sentinels
- Daredevil's Suit
- Daredevil's Billy Club
- Ghost Rider's Chain
- Captain Marvel's Suit
- Vibranium
- Ant-Man's Suit
- Ant-Man's Helmet
- Godslayer
- Spider-Man's Suit and Web-Shooters
- Hawkeye's Suit
- Pumpkin Bombs
- Gambit's Staff
- Cloak of Levitation
- Eye of Agamotto
- Book of Cagliostro
- Prowler's Suit
- Moon Knight's Crescent Darts
- Spider Drone
- Spider-Woman's Suit
- Falcon's Wings
- Necrosword
- Time Stick
- Cyclops' Visor
- War Machine Armor MK III
- Mysterio Suit
- Horn of Proteus
- Iron Spider Armor
- Iron Man Armor MK XLV
- Horn of Proteus
- Iron Man Armor Model 51
- Iron Tech Armor
- Iron Man Armor Model 4
- Iron Man Armor Model 39
- Iron Man Armor Model 42
- Web of Life and Destiny (Drawing)
- Life Model Decoy (Mentioned)
- Baymax Armor
- Microbots
Vehicles:
- Milano
- Quinjet
- S.H.I.E.L.D. Helicarrier
- Silver Surfer's Surfboard
- Goblin Glider
- X-Men Blackbird
- Excelsior
- Chitauri Chariots
Concepts:
- Fortnite is a online video game and game platform developed by Epic Games which first released in 2017. It primarily revolves around the game Fortnite Battle Royale but also features additional modes, dubbed "experiences", such as Fortnite: Save the World, Lego Fortnite, Rocket Racing, Fortnite Festival, and Fortnite Ballistic. While not explicitly based on Marvel Comics, the two properties have crossed over multiple times, leading Marvel Comics characters and concepts to be heavily featured in the game. The first collaboration between to came in the form of the Infinity Gauntlet Limited Time Mashup, which added a new limited time game mode in promotion of Avengers: Infinity War. A similar event was later held in promotion of Avengers: Endgame. The game then went on to receive two Marvel-themed Battle Royal seasons: Chapter 2: Season 4, subtitled Nexus War, and Chapter 5: Season 4, subtitled Absolute Doom. Additionally Marvel characters played key roles in the Battle Royale seasons Chapter 2: Season 2, Chapter 3: Season 1, Chapter 3: Season 2, Chapter 5: Season 3. Later, a Tony Stark-themed island known as Stark Island was added to the Battle Royale variation Blitz Royale.
- Despite the Iron Man Mk 45 outfit being based on Avengers: Age of Ultron, the person inside of the suit is the Tony Stark of Earth-616, not Earth-199999. This is evidenced by the outfit's description, which references 616 Tony's actions during the Nexus War.
- The comics Fortnite X Marvel - Nexus War: Thor #1 and Fortnite X Marvel: Zero War were released to tie-in to Fortnite and serve to supplement the game's story. Fortnite X Marvel - Nexus War: Thor #1 serves as a prequel to Chapter 2: Season 4 while Fortnite X Marvel: Zero War takes place during Chapter 3: Season 2.
- With the release of the Update v27.10, all of experiences available in Fortnite received their own age and content ratings. This led to certain cosmetics being age restricted, meaning that they couldn't be used in experiences given an ESRB rating of E or E10+ (or equivalent ratings outside of North America). This restriction is currently applied to the skins for Venom, Carnage, Eddie Brock, Agony, and She-Venom as well as their related cosmetics. This restriction also once applied to the skins for Black Widow, Black Widow Outfit, Cable, Deadpool, Deadpool (Pen & Ink), Doctor Doom, and Domino but this has since changed.
- Every playable Marvel character in Fortnite has a LEGO style except for Deadpool, Blade, Venom, Carnage, Eddie Brock, MJ, Deadpool (Pen & Ink), Agony, and She-Venom. While Venom, Carnage, Eddie Brock, Agony, and She-Venom lack LEGO styles due to being age restricted, it is currently unclear why the other aforementioned skins don't.
- The Marvel Universe is one of only three franchises to have an in-game cosmetic rarity tier, known as the "Marvel Series", solely dedicated to it, the others being the DC Universe and Star Wars. Every single Marvel-related cosmetic is listed under the "Marvel Series" except for ones related to Big Hero 6. This likely due to Big Hero 6's presence in-game being based of the film and not the original comics.
- As a part of Gwenpool's Quests during Chapter 5: Season 4, Gwenpool tasks the player with hacking into Doctor Doom's computer in the Raft. Upon interacting with computer the player is given three choices for the password they should input: CYNTHIA, VALERIA, and SUE. The correct password, CYNTHIA, is directly stated to be reference to Cynthia von Doom. The incorrect passwords are likely references to Valeria Richards (or Valeria von Doom) and Sue Storm. While it is made clear that Sue exists in Doom's reality due to other references to her in-game, it is unclear if Valeria does as well given the fact that this is the only reference to her within Fortnite.
- If players purchased Marvel Rivals via the Epic Games Store and played 10 matches in the game anytime from December 7th 2024 to January 7th 2025 they'd earn an exclusive glider, the "Rivaled Sailer", in Fortnite.