| Event | Date | Type | Developments |
| Fall of the Hammer | February 1994 | Crossover | In the futuristic world of 2099, a floating city, called Valhalla, appears in the sky – its passengers claiming to be gods. The heroes from the future of 2099 plan to find out the truth. |
| One Nation Under Doom | May–October 1995 | Crossover | In the year 2099, the U.S.A is ruled by megacorporations, and Doctor Doom makes its bid to become the American President. |
| Spider-Man 2099 Meets Spider-Man | November 1995 | One-Shot | Miguel O'Hara meets Peter Parker. |
| Timestorm 2009–2099 | June – October 2009 | Crossover | Spider-Man and Wolverine were transported to the year 2099 to save the future. |
| Civil War 2099 | August – October 2016 | Story Arc | Part of the Civil War II event. The world of the year 2099 is in danger and Miguel O'Hara must come to the present to save it. |
| 2099 | October – December 2019 | Crossover | Something has happened in the year 2099 that caused the timeline to crumble. The heroes of 2099 will need the help of the present-day Spider-Man to figure out what's going and to save their world. |
| Annihilation 2099 | July – September 2024 | Limited Series | The new cosmic-heroes of 2099 against a cosmic threat. |
| Event | Date | Type | Developments |
| Ultimate War | 2002–2003 | Limited Series | After the government discovers that Charles Xavier lied about killing Magneto they order the Ultimates to hunt down the X-Men. |
| Ultimate Six | 2003–2004 | Limited Series | Electro, Kraven, Doc Ock, Sandman, and Spider-Man's nemesis, the Green Goblin are incarcerated by the Ultimates. Hank Pym attempts to rehabilitate them. Ultimately, this doesn't go well. They escape and force Spider-Man to launch an attack upon the White House. |
| Ultimate [Galactus Trilogy] | 2004–2006 | Limited Series | The story chronicles the coming of Gah Lak Tus. |
| Ultimate X4 | 2005–2006 | Limited Series | Cerebro has been stolen and the trail points directly at the government's premier think tank, the Baxter Building. The X-Men aren't happy about it and the Baxter Building's most famous residents, the Fantastic Four aren't happy about an angry team of mutants showing up on their doorstep. |
| Ultimate Power | 2006–2008 | Limited Series | A few days after Reed Richards sends five probes into other dimensions the roof of the Baxter Building is ripped open by a massive explosion, heralding the sudden appearance of the Squadron Supreme. They declare Reed Richards under arrest for his crimes against their planet. |
| Ultimatum | 2008–2009 | Event | The story deals with Magneto's attempts to destroy the world following the apparent deaths of the Scarlet Witch and Quicksilver in Ultimates 3. Following the Ultimatum storyline, each Ultimate title was given a Requiem follow-up series or one-shot, dealing with the status of each book's characters in the aftermath of Ultimatum. |
| Ultimate Comics: Armor Wars | 2009 | Story Arc | An adaptation of the original Armor Wars story line. |
| Doomsday | 2010–2011 | Limited Series | The story mainly focuses on what remains of the Fantastic Four after Ultimatum, specifically dealing with an unknown threat trying to alter the entire Ultimate Universe, in the process causing a significant amount of destruction. |
| List of [Ultimate Comics: Spider-Man story arcs#Death of Spider-Man (#156-160)|Death of Spider-Man] | 2011 | Event | The story details the death of Spider-Man. It also crosses over with Ultimate Avengers vs. New Ultimates 1–6. After this the entire Ultimate line was relaunched with Ultimate Comics Universe Reborn tagline. The titles relaunched were Ultimate Comics: X-Men, Ultimate Comics: Ultimates, and Ultimate Comics: Spider-Man, with Ultimate Comics: Fallout and Ultimate Comics: Hawkeye being released as mini series. |
| Ultimate Fallout | 2011 | Limited Series | Aftermath of Death of Spider-Man |
| Prowler | 2012 | Story Arc | After Miles Morales receive the Spiderman suit, his mission is his uncle who goes the Prowler. |
| Divided We Fall | 2012 | Event | Return of Ultimate Captain America after the death of Ultimate Spider-Man. |
| United We Stand | 2012 | Event | Captain America is elected the new president of the United States and a new mutant nation is born. |
| Hunger | 2013 | Limited Series | In the aftermath of Age of Ultron, the timestream is broken and Earth-616's Galactus entered the Ultimate Universe. |
| Cataclysm | 2013–2014 | Event | Wounded at the end of Hunger, Galactus comes to the Ultimate Earth to feed, leading the heroes on a last ditch attempt to stop him.
|
| Ultimate End | 2015 | Limited Series | Part of the Secret Wars event, this mini series tells the final Ultimate Universe story ahead of the birth of a new combined universe with the Earth-616 universe in September 2015. |
| Ultimate Invasion | 2023 | Limited Series | The Maker is determined to restore his reality by invading the Marvel Universe, and Miles Morales will be in the middle of this conflict. |
| Ultimate Spider-Man: Incursion | 2025 | Limited Series | TBA |
| Ultimate Endgame | 2025–2026 | Limited Series | TBA |
| Crossover | Timespan | Company | Notes |
| Marvel/DC | 1976–2026 | DC Comics |
- Marvel/Superman
- * Spider-Man/Superman
- ** Superman vs. The Amazing Spider-Man : Superman and Spider-Man must stop a world domination/destruction plot hatched in tandem by their respective arch-nemeses, Lex Luthor and Doctor Octopus.
- ** Superman and Spider-Man : Superman and Spider-Man battle the Parasite and Doctor Doom, with the Hulk and Wonder Woman guest-starring.
- **Superman/Spider-Man
- *** Backup stories:
- **** Lois Lane & Mary Jane Watson
- **** Jimmy Olsen & Carnage
- **** Superboy & Spider-Man 2099
- **** Power Girl & Punisher
- **** Superboy-Prime & Black Suit Spider-Man
- **** Daily Planet & Daily Bugle
- **** Pa Kent & Uncle Ben
- **Spider-Man/Superman
- *** Backup stories:
- **** Spider-Man Noir & Golden Age Superman
- **** Spider-Family & Super-Family
- **** Mighty Thor & Wonder Woman
- **** Hobgoblin & Steel
- **** Gwen Stacy & Lana Lang
- **** Miles Morales & Superman
- * Silver Surfer/Superman
- ** Silver Surfer/Superman : The Last Son of Krypton meets the Herald of Galactus.
- * Fantastic Four/Superman
- ** Superman/Fantastic Four: The Infinite Destruction : Superman and the Fantastic Four must unite to stop the Cyborg Superman and Galactus.
- * Hulk/Superman
- ** The Incredible Hulk vs. Superman : You did not think their battle in DC vs. Marvel was the last word on the issue, did you? Worlds tremble as the two must fight it out, but is there something more sinister afoot?
- Marvel/Batman
- * Hulk/Batman
- ** Batman vs. The Incredible Hulk : Batman and the Hulk battle the Joker and the Shaper of Worlds.
- * Punisher/Batman
- ** Batman/Punisher: Lake of Fire : The Punisher and Batman meet, and things do not go well.
- ** Punisher/Batman: Deadly Knights : Batman meets the Punisher again, and things worsen.
- * Spider-Man/Batman
- ** Spider-Man & Batman: Disordered Minds : The Joker and Carnage meet when behavioral psychiatrist Cassandra Briar attempts to use the two killers as tests for a computer chip that will 'lobotomize' their homicidal instincts.
- ** Batman & Spider-Man: New Age Dawning : Ra's al Ghul manipulates the Kingpin to his side and begins plans for worldwide devastation.
- * Captain America/Batman
- ** Batman/Captain America : The two heroes, mortals fighting alongside the mightiest of beings, must fight a threat to both worlds.
- * Daredevil/Batman
- ** Daredevil/Batman: Eye for an Eye : Batman and Daredevil must work together to defeat Two-Face and Mr. Hyde.
- ** Batman/Daredevil: King of New York : Batman and Daredevil must work together again to defeat Ra's al Ghul and the Kingpin.
- * Deadpool/Batman
- ** Deadpool/Batman : The Joker hires Deadpool to capture Batman. The heroes then work together to stop the villain.
- *** Backup stories:
- **** Captain America & Wonder Woman: In a shared universe, the two heroes have been battling villains from World War 2 to the future.
- **** Jeff! & Krypto: The two super pets play long distance volleyball.
- **** Daredevil & Green Arrow : The heroes battle The League of Shadows and Count Vertigo in Hell's Kitchen New York.
- **** Rocket Raccoon & Green Lantern: The Guardians of the Galaxy and the Guardians of the Universe swap heroes. This allows Rocket to wear a Green Lantern ring.
- **** Old Man Logan & Batman The Dark Knight: The aged heroes get into a fight to the finish.
- **** Logo: An Amalgam Comics story where Logo bursts on the scene.
- ** Batman/Deadpool : When a romantic fling between Eternity and Kismet causes reality to be distorted, Batman and Deadpool team with Grant Morrison to stop Cassandra Nova. Story features the return of the Amalgam Comics character Dark Claw, and the two heroes merging briefly into Dead Bat.
- *** Backup stories:
- **** John Constantine: Hellblazer & Doctor Strange: When a disruption in magic causes beings from the two universes to battle one another, John Constantine seeks out Doctor Strange to put things right.
- **** Nightwing & Laura Kinney: Wolverine: Dick and Laura team up to rescue Laura's sister Gabby from Killer Croc.
- **** Harley Quinn & The Incredible Hulk: The Hulk and Harley battle a robot biker mouse and toxic waste mutated killer hot dogs at an amusement park.
- **** Static & Ms. Marvel: The two heroes team up to battle a Kaiju.
- X-Men/Teen Titans
- * The Uncanny X-Men and The New Teen Titans : The two teams must unite to battle Darkseid, Deathstroke, and Dark Phoenix.
- Galactus/Darkseid
- * Darkseid vs. Galactus: The Hunger : Galactus tries to devour Apokolips.
- Silver Surfer/Green Lantern
- * Green Lantern/Silver Surfer: Unholy Alliances : Green Lantern and the Silver Surfer battle Parallax and Thanos. The book ends with a tease for Marvel Versus DC.
- Marvel/DC
- * Marvel Versus DC : Two brothers who personify the DC and Marvel Universes become aware of the other's existence and challenge each other to a series of duels involving each universe's respective superheroes. The losing universe will cease to exist. The story has an out-of-universe component in that although there are 11 primary battles, the storyline does not show one side as victorious. The "brothers" resolve the situation by temporarily creating a new universe, called the Amalgam Universe, which is occupied by merged versions of many of the heroes. An inter-dimensional character called Access eventually manages to restore the universes to their normal state.
- * Amalgam Comics : An imprint owned by both DC and Marvel that published one-shots set on a fusion of New Earth & Earth-616 called the Amalgam Universe or Earth-9602.
- ** List of [Amalgam Comics publications#Amazon #1|Amazon] : A story following the fusion of Wonder Woman and Storm.
- ** Doctor Strangefate : Two stories following the fusion of Doctor Fate, Doctor Strange, and Professor X.
- ** Assassins : Two stories following the genderswapped fusion of Deathstroke and Daredevil and the fusion of Catwoman and Elektra.
- ** JLX : Two stories following the fusions of the Justice League and the X-Men.
- ** Legends of the Dark Claw : Two stories following the fusion of Batman and Wolverine.
- ** Super-Soldier : Two stories following the fusion of Superman and Captain America.
- ** Bruce Wayne, Agent of S.H.I.E.L.D. : A story following the fusion of Batman and Nick Fury.
- ** Bullets and Bracelets : A story following the fusion of Diana Prince and Lynn Michaels as well as the fusion of Steve Trevor and the Punisher.
- ** Magneto and the Magnetic Men : A story following Magneto and the fusions of the Metal Men and the Brotherhood of Mutants.
- ** Speed Demon : A story following the fusion of the Flash and Ghost Rider.
- ** Spider-Boy : A story following the fusion of Superboy and Spider-Man.
- ** X-Patrol : Two stories following the fusions of Doom Patrol and X-Force.
- ** Bat-Thing : Two stories following the fusion of Man-Bat and Man-Thing.
- ** Dark Claw Adventures : A parallel of the Batman: The Animated Seriesspin-off comic, The Batman Adventures, that supposedly features the animated series version of Dark Claw.
- ** Generation Hex : Two stories set in an alternate version of the Amalgam Universe's Wild West that feature the fusions of Generation X and DC's various Wild West characters. The team name is an amalgamation of Generation X and Jonah Hex's names.
- ** JLX Unleashed : The JLX must team up with the Judgement League Avengers to defeat Fin Fang Flame.
- ** Lobo the Duck : Two stories set in an alternate Amalgam Universe where various heroes have been murdered and it's up to the fusion of Lobo and Howard the Duck to find the murderer.
- ** Super-Soldier: Man of War : Two stories featuring Super-Soldier set during World War II in the style of Golden Age comics.
- ** Challengers of the Fantastic : Two stories following the fusions of the Challengers of the Unknown and the Fantastic Four.
- ** X-Patrol #1|The Exciting X-Patrol] : X-Patrol must defeat Brother Brood, the fusion of Brother Blood and Brood.
- ** Iron Lantern : Two stories featuring the fusion of Green Lantern and Iron Man.
- ** The Magnetic Men featuring Magneto : Two stories featuring Magneto and the Magnetic Men facing off against the Sinister Society, a fusion of the Secret Society of Super-Villains and the Sinister Six.
- ** Spider-Boy Team-Up : Spider-Boy teams up with the Legion of Galactic Guardians 2099, the fusions of the Legion of Super-Heroes, and the Guardians of the Galaxy.
- ** Thorion of the New Asgods : Two stories following the fusion of Orion and Thor.
- * Marvel/DC: All Access : Various aspects of each company's main universe start transporting from one another and it's up to Access to prevent them from merging again.
- * Unlimited Access : Access' powers start acting up and send him and others across time and space.
- Avengers/Justice League
- * Avengers/JLA : Krona, an exiled Oan, travels across the Multiverse and destroys universes, seeking the truth of creation. When he arrives in the Marvel Universe, the Grandmaster, wanting to save his universe, proposes that they play a game.
- Spider-Man/Superboy
- * Spider-Verse : The Amalgam Universe Spider-Boy makes a cameo appearance in Spider-Verse #2.
- Fantastic Four/The Flash
- * The Flash/Fantastic Four : The Flash and the Fantastic Four team up to battle Gorilla Grodd across time.
- Thor/Shazam
- * Thor/Shazam! : Thor and Captain Marvel team up to battle Mister Mind, who has stolen the powers of ten beings across both universes.
|
| The Punisher/Archie | 1994 | Archie Comics | Archie Meets the Punisher : The Punisher visits Riverdale High School. |
| Marvel/Ultraverse | 1995–1997 | Malibu Comics | Avengers/Ultraforce * Avengers/Ultraforce : The Avengers team up with Ultraforce.* Ultraforce/Avengers : The conclusion of the previous story. Black September : It follows the reality-changes effects of the crossover with the Marvel Universe. Marvel/Rune * Rune/Silver Surfer : Rune's journey to the Marvel Universe in search of the Infinity Gems.* Conan vs. Rune : Conan the Barbarian against the Dark God Rune.* Rune vs. Venom : Eddie Brock against Rune. Godwheel : The ultra-heroes and villains are transported to the Godwheel by the God Argus. X-Men/The Night Man * The Night Man vs. Wolverine : Wolverine against Nightman.* The Night Man/Gambit : Johnny Domino meets Remy LeBeau. Marvel/Prime * Prime/Captain America : The mighty Prime teams up with the Sentinel of Liberty.* Prime vs. The Incredible Hulk : The two most powerful heroes in their universes meet each other. The All-New Exiles vs. X-Men : The X-Men cross the dimensional barrier into the Ultraverse to find the missing Juggernaut. The Phoenix Resurrection : Crossover between the Ultra-heroes and the X-Men. UltraForce/Spider-Man : Peter Parker meets The Ultra Force. Ultraverse Unlimited : Rune vs. Adam Warlock and Ultraforce vs. All New Exiles. Ultraverse: Future Shock : Behold the ultimate future of the Ultraverse. |
| Marvel/Badrock | 1996–1997 | Image Comics | Wolverine/Badrock * Badrock/Wolverine : Badrock decides to help Wolverine in Savage Land. Spider-Man/Badrock * Spider-Man/Badrock : Spider-Man and Badrock come into conflict. |
| Spider-Man/Backlash | 1996 | Image Comics | Backlash/Spider-Man : Spider-Man and Backlash team up to take on Venom and Pike. |
| Hulk/Pitt | 1996 | Image Comics | Hulk/Pitt : Hulk and Pitt team up. |
| Iron Man/X-O Manowar | 1996 | Valiant Comics | X-O Manowar/Iron Man in Heavy Metal : A crossover between the two most popular armored heroes in comic. Iron Man/X-O Manowar in Heavy Metal : The conclusion of the previous story between the armored Avenger and the ballistic barbarian. |
| X-Force/Youngblood | 1996 | Image Comics | Yougblood/X-Force X-Force/Youngblood |
| X-Men/Star Trek | 1996–1998 | Paramount Pictures | Star Trek/X-Men Star Trek: The Next Generation/X-Men: Second Contact |
| Marvel/Gen13 | 1996–2001 | WildStorm Productions | Spider-Man/Gen13 * Spider-Man/Gen13 : Spider-Man teams up with Gen13. Generation X/Gen13 * Gen13/Generation X : Generation X and Gen13 must team up to save a mutant from suspended animation.* Generation X/Gen13 : Generation X and Gen13 must team up yet again. Fantastic Four/Gen13 * Gen13/Fantastic Four : During Gen13's time in New York City they cross paths with local heroes, the Fantastic Four. |
| Gladiator/Supreme | 1997 | Maximum Press | Gladiator/Supreme : The two most powerful beings in their universes confront each other. |
| Wolverine/Deathblow | 1997 | Image Comics | Deathblow/Wolverine : Wolverine and Deathblow team up against a ninja clan. |
| Team X/Team 7 | 1997 | Image Comics | Team X/Team 7 : The two most violent teams in history team up. |
| Cable/Prophet | 1997 | Image Comics | Prophet/Cable : Nathan Summers and John Prophet team up against Kang and Crypt. |
| X-Men/WildCATS | 1997 | Image Comics | WildC.A.T.s/X-Men: The Golden Age : Wolverine and Zealot team up against the Nazis. WildC.A.T.s/X-Men: The Silver Age : The classic X-Men and the WildCATS confront the Daemonites and the Brood. WildC.A.T.s/X-Men: The Modern Age : The X-Men and the WildCATS team up against Hellfire Club and the Daemonites. WildC.A.T.s/X-Men: The Dark Age : In the future, the X-Men and the WildCATS team up to stop the Daemonites and the Sentinels. |
| Marvel/WildStorm | 1997 | WildStorm Productions | World War 3 : Various WildStorm heroes team up with Captain America, Iron Man, the Fantastic Four, and the Avengers. |
| Marvel/Shi | 1997–2000 | Crusade Comics | Daredevil/Shi * Shi/Daredevil : Shi meets Daredevil.* Daredevil/Shi : Shi and Daredevil team up once again. Wolverine/Shi * Wolverine/Shi: Dark Night of Judgment : A bloody battle between Wolverine and Shi ensues on the streets of Tokyo.* Shi: Judgment Night : Shi meets Wolverine yet again. |
| Marvel/Top Cow | 1997–2009 | Top Cow Productions | Devil's Reign : A crossover between Top Cow and Marvel against Mephisto.* Devil's Reign: Silver Surfer/Witchblade * Devil's Reign: Weapon Zero/Silver Surfer * Devil's Reign: Cyblade/Ghost Rider * Devil's Reign: Ghost Rider/Ballistic * Devil's Reign: Ballistic/Wolverine * Devil's Reign: Wolverine/Witchblade * Devil's Reign: Witchblade/Elektra * Devil's Reign: Elektra/Cyblade * Devil's Reign: Silver Surfer/Weapon Zero Unholy Union : A one-shot comic crossover between Marvel and Top Cow.Fusion : A crossover between Top Cow's Cyber Force and Hunter-Killer and Marvel's Avengers and Thunderbolts. |
| Punisher/Painkiller Jane | 2001 | Event Comics | Punisher/Painkiller Jane : A one-shot comic crossover between Frank Castle and Jane Vasko. |
| Marvel/The Darkness | 2004–2006 | Top Cow Productions | Hulk/The Darkness * The Darkness/The Incredible Hulk : The Hulk and The Darkness face off against each other in a no holds bared battle. Wolverine/The Darkness * The Darkness\Wolverine : Jackie Estacado and Logan never met, but the power of the Darkness and Wolverine did. |
| Marvel/Witchblade | 2004-2007 | Top Cow Productions | Wolverine/Witchblade * Witchblade/Wolverine : Wolverine and Witchblade-wielder Sara Pezzini getting married...and then gets crazier from there! Punisher/Witchblade * Witchblade/The Punisher : Sara Pezzini and Frank Castle face off against each other. |
| Spider-Man/Invincible | 2006 | Skybound Entertainment | Spider-Man Meets Invincible : Invincible finds himself in the Marvel universe and teams up with Spider-Man to take down Doctor Octopus. |
| X-Men/Cyberforce | 2007 | Top Cow Productions | Cyberforce/X-Men : A one-shot comic crossover between Marvel's X-Men and Top Cow's Cyberforce. |
| New Avengers/Transformers | 2007 | IDW Publishing | The New Avengers / Transformers : The Earth's Mightiest Heroes and the Autobots teams up against Doctor Doom and the Decepticons. |
| Spider-Man/Red Sonja | 2007–2008 | Dynamite Entertainment | Spider-Man/Red Sonja : Spider-Man and Red Sonja must team up to take on the evil sorcerer Kulan Gath and Venom. |
| Avengers/Attack on Titan | 2014 | Kodansha Comics | Attack on Avengers : crossover between The Avengers and Attack on Titan. |
| Marvel/Predator | 2023–2025 | 20th Century Studios | Wolverine/Predator *Predator vs. Wolverine Black Panther/Predator *Predator vs. Black Panther Spider-Man/Predator *Predator vs. Spider-Man Marvel/Predator *Predator Kills the Marvel Universe |
| Avengers/Ultraman | 2024 | Tsuburaya Productions | Ultraman X Avengers |
| Marvel/Alien | 2024–2026 | 20th Century Studios |
|
| Marvel/Godzilla | 2025 | Toho | Godzilla vs Marvel * Godzilla vs. Fantastic Four * Godzilla vs. Hulk * Godzilla vs. Spider-Man * Godzilla vs. X-Men * Godzilla vs. Avengers * Godzilla vs. Thor Godzilla Destroys the Marvel Universe Godzilla: Infinity Roar |
| Fantastic Four/Planet of the Apes | 2026 | 20th Century Studios | Planet of the Apes vs. Fantastic Four'' |