List of What If issues

The Marvel Comics anthology series "What If?" tells alternate reality stories outside mainstream Marvel Universe continuity, which the company sets on what it calls Earth-616. A number of these stories have been set on alternate Earths in the Marvel Comics Multiverse (i.e., multiple universes) for which Marvel has given official numerical designations.

First series (1977-1984)

# What if Spider-Man joined the Fantastic Four? (Based on "Amazing Spider-Man" Vol. 1, #1)
#* Reprinted in "The Best of What If?" Followed by "What If?" Vol. 1, #21. Alternate sequels appeared in "What If?" v.2 #35 and "Paradise X: Heralds". This world was designated Earth-772 in "Marvel Encyclopedia: Fantastic Four".
#*Spider-Man did eventually join, as a member of "The New Fantastic Four".
# What if the Hulk had the brain of Bruce Banner? (Based on "The Incredible Hulk" Vol. 1, #1)
#* This world was designated Earth-774 in "Marvel Encyclopedia: Fantastic Four".
# What if the Avengers had never been? (Based on "Avengers" Vol. 1, #3)
# What if the Invaders stayed together after World War 2?
#* A tale of "untold history."
# What if Captain America hadn't vanished during World War 2? (Based on "Avengers" Vol. 1, #4)
# What if the Fantastic Four had different super-powers? (Based on "Fantastic Four" Vol. 1, #1)
#* This version of the team reappeared in "What If?" v.2 #39. This world was designated Earth-7712 in "Marvel Encyclopedia: Fantastic Four".
# What if someone else besides Spider-Man had been bitten by the radioactive spider? (Based on "Amazing Fantasy" Vol. 1, #15)
#* Three different stories which look at what would have happened if either Peter's bully Flash Thompson, his would-have-been temporary girlfriend Betty Brant, and Publisher Jonah Jameson's Astronaut son John, had been bitten instead. All three end the same way. A darker version of the Flash story is redone as "What If?" v.2 #76.
# What if the world knew Daredevil was blind? (Based on "Daredevil" #2)
#* This Issue also contained the first humour-based "What If?" in the series asking... What If the Spider had been bitten by a Radioactive Human?
# What if the Avengers fought evil in the 1950s?
#* Presented as "untold history," it has been steadfastly relegated (at least, as written) to an alternate universe by Kurt Busiek and others. Designate Earth-9904 in "All-New Official Handbook of the Marvel Universe: A-Z Update" #2 (2007). A version of this timeline was revisited in "Avengers Forever", and yet another version made a cameo in "Paradise X: Heralds".
# What if Jane Foster had found the hammer of Thor? (Based on "Journey into Mystery" #83)
# What if the original Marvel Bullpen had become the Fantastic Four? (Based on "Fantastic Four" Vol. 1, #1)
#* This world made a brief tongue-in-cheek appearance in "Paradise X: Heralds". It was designated Earth-1228 in "The Official Handbook of the Marvel Universe: Alternate Universes 2005".
# What if Rick Jones had become the Hulk? (Based on "The Incredible Hulk" Vol. 1, #1)
# What if Conan the Barbarian walked the earth today? (Based on "The Savage Sword of Conan" #5)
#* An alternate ending can be seen in #43.
# What if Sgt. Fury had fought World War 2 in outer space?
#* This universe made a brief appearance in "Paradise X: Heralds".
# What if Nova had been four other people? (Based on "Nova" Vol. 1, #1)
# What if Shang-Chi, Master of Kung Fu, fought on the side of Fu Manchu? (Based on "Master of Kung Fu" Vol. 1, #1)
# What if Ghost Rider, Spider-Woman, Captain Marvel were villains? (Based on "Marvel Spotlight" Vol. 1, #15, "Marvel Spotlight" Vol. 1, #32, and "Marvel Super-Heroes" #12)
#* As with #7, this contained three short stories with the theme of Marvel Characters who strayed close to becoming villains rather than heroes in the 616 Universe.
# What if Dr. Strange were a disciple of Dormammu? (Based on "Strange Tales" #110)
# What if Spider-Man had never become a crimefighter? (Based on "Amazing Fantasy" Vol. 1, #15)
# What if the Avengers fought the Kree-Skrull War without Rick Jones? (Based on "Avengers" Vol. 1, #96)
# What if Invisible Girl of the Fantastic Four married the Sub-Mariner?
#* A sequel to "What If?" Vol. 1, #1.
# What if Dr. Doom had become a hero? (Based on "Fantastic Four" Vol. 1, #5)
#* This world was designated Earth-808 in "Marvel Encyclopedia: Fantastic Four".
# What if the Hulk had become a barbarian? (Based on "The Incredible Hulk" Vol. 1, #205)
#* This issue also contains the back up humour story... What If Aunt May had been bitten by the Radioactive Spider?
# What if Gwen Stacy had lived? (Based on "Amazing Spider-Man" Vol. 1, #121)
#* Reprinted in "The Best of What If?"
# What if Thor and the Avengers fought the gods? (Based on "Thor" Vol. 1, #136)
# What if Captain America had been elected president? (Based on "Captain America" Vol. 1, #250)
#* This issue also contained the back-up story... What if Man-Thing had regained his intelligence?
# What if Phoenix had not died? (Based on "X-Men" Vol. 1, #137)
#* Reprinted in "The Best of What If?" Redone in "What If?" v.2 #32-33.
# What if Daredevil became an agent of S.H.I.E.L.D.? (Based on "Daredevil" #1)
#* Reprinted in "The Best of What If?"
#* This also contained the backup story... What If Ghost Rider had been separated from Johnny Blaze?
# What if the Avengers defeated everybody? (Based on "Avengers" Special #2)
#* This world was designated Earth-8110 in "The Official Handbook of the Marvel Universe: Alternate Universes 2005".
#* This also contained the backup story... What If Namor had never regained his memories?
# What if Spider-Man's clone lived? (Based on "Amazing Spider-Man" Vol. 1, #149)
#*It was revealed years later that the clone had indeed lived,but had just been in hiding.
# What if Wolverine had killed the Hulk? (Based on "The Incredible Hulk" Vol. 1, #181)
#* The concept was reversed in "What If?" v.2 #50 (although it followed a later rematch between the characters). Issue also includes "What if the Fantastic Four had never been?" (Based on "Fantastic Four" Vol. 1, #1) The latter world was designated Earth-8222 in "Marvel Encyclopedia: Fantastic Four".
# What if the Avengers had become pawns of Korvac? (Based on "Avengers" Vol. 1, #177)
#* Reprinted in "The Best of What If?" A version of this world was visited by Quasar in "Quasar" #30.
# What if Dazzler had become the herald of Galactus? (Based on "Dazzler" #11)/What if Iron Man was trapped in the time of King Arthur? (Based on "Iron Man" Vol. 1, #150)
# Humor issue
#* Parts reprinted in "The Best of What If?"
# What if Elektra had lived? (Based on "Daredevil" #182)
#* Issue also includes "What if Yellowjacket had died?" (Based on "Avengers" Vol. 1, #212)
# What if the Fantastic Four had not gained their super-powers? (Based on "Fantastic Four" Vol. 1, #1)
#* Reprinted in "The Best of What If?" This version of the team reappeared in "What If?" v.2 #39. This world was designated Earth-8212 in "Marvel Encyclopedia: Fantastic Four". Issue also includes "What if Richard Rider had not lost the power of Nova?" (Based on "The Man Called Nova" #25)
# What if the Beast and the Thing continued to mutate? (Based on "Amazing Adventures" #11 and "Marvel Two-in-One" #81)
#* The world featuring the Thing was designated Earth-8321 in "Marvel Encyclopedia: Fantastic Four". Issue also includes "What if the Silver Surfer lost the Power Cosmic?" (Based on "Fantastic Four" Vol. 1, #50)
# What if featuring Daredevil (set in a possible future) and Captain America (Based on "Captain America" #237)
#* Also included an alternate future Vision and Scarlet Witch tale.
# What if Thor battled Conan the Barbarian?
# What if Dr. Strange had not become master of the mystic arts? (Based on "Strange Tales" #110)
#* This timeline made a cameo appearance in "Paradise X: Heralds".
# What if Sub-Mariner had saved Atlantis from its... Destiny? (Based on "Sub-Mariner" Vol. 1, #1)
# What if the Invisible Girl had died in Childbirth? (Based on "Fantastic Four" Annual #6)
#* This world was designated Earth-8312 in "Marvel Encyclopedia: Fantastic Four".
# What if Conan the Barbarian was stranded in the 20th century?
#* An alternate ending to "What If?" Vol. 1, #13. Also includes an extended ending to "What If?" Vol. 1, #32.
# What if Captain America were revived today? (1983) (Based on "Avengers" Vol. 1, #4)
#* Redone in "What If?" v.2 #67-68 and v.2 #103.
# What if the Hulk went berserk? (Based on "The Incredible Hulk" Vol. 1, #1)
# What if Spider-Man's Uncle Ben had lived (and Aunt May was murdered instead)? (Based on "Amazing Fantasy" Vol. 1, #15)
#* Redone in "What If" Spider-Man (2005)
# What if Loki had found the hammer of Thor? (Based on "Journey into Mystery" #83)
#* Final issue of the original series.

pecial (1988)

# What if Iron Man had been a traitor? (Based on "Tales of Suspense" #39)

econd series (1989-1998)

# What if the Avengers lost the Evolutionary War? (Based on "Avengers" Annual #17)
#* Visited by Quasar in "Quasar" #30.
# What if Daredevil killed the Kingpin? (Based on "Daredevil" #228)
# What if Steve Rogers had refused to give up being Captain America? (Based on "Captain America" v.1 #332)
# What if the alien costume had possessed Spider-Man? (Based on "Amazing Spider-Man" v.1 #258)
#* Visited by Quasar in "Quasar" #30.
# What if the Vision had destroyed the Avengers? (Based on "Avengers" v.1 #9)
# What if the X-Men lost Inferno? (Based on "The New Mutants" #73)
# What if Wolverine was an agent of S.H.I.E.L.D.? (Based on "The Incredible Hulk" v.1 #181)
#* Pencilled by Rob Liefeld.
# What if Iron Man lost the Armor Wars? (Based on "Iron Man" v.1 #225)
# What if the X-Men died on their first mission? (Based on "Giant Size X-Men" #1)
#* This world was designated Earth-105709 in "Quasar" #30.
# What if the Punisher's family hadn't been killed?
# What if the Fantastic Four all had the same power? (Based on "Fantastic Four" v.1 #1)
#* The four worlds were designated Earths 9031 through 9034 in "Marvel Encyclopedia: Fantastic Four".
# What if the X-Men had stayed in Asgard? (Based on "The New Mutants" Special Edition #1)
# What if Professor X of the X-Men had become the Juggernaut? (Based on "Uncanny X-Men" #12)
# What if Captain Marvel had not died? (Based on "The Death of Captain Marvel")
#* Visited by Quasar in "Quasar" #30.
# What if the Fantastic Four had lost the trial of Galactus? (Based on "Fantastic Four" v.1 #244)
#* This world was designated Earth-907 in "Marvel Encyclopedia: Fantastic Four".
# What if Wolverine battled Conan the Barbarian? (Based on "Uncanny X-Men" #137)
# What if Kraven the Hunter had killed Spider-Man? (Based on "Web of Spider-Man" #31-32)
# What if the Fantastic Four battled Doctor Doom before they got their powers?
#* This world was designated Earth-9011 in "Marvel Encyclopedia: Fantastic Four".
# What if the Vision of the Avengers conquered the world? (Based on "Avengers" v.1 #254)
#* Two takes, one of which (a utopian world) was revisited in "What If?" v.2 #36. The utopian world was designated Earth-90110, and the dystopian world Earth-90111, in "The Official Handbook of the Marvel Universe: Alternate Universes 2005".
# What if the Amazing Spider-Man had not married Mary Jane? (Part 1 of 2) (Based on "Amazing Spider-Man" v.1 #292)
# What if the Amazing Spider-Man had married the Black Cat? (Part 2 of 2) (Based on "Amazing Spider-Man" v.1 #292)
#* The first of several two-parters throughout the second series.
# What if the Silver Surfer had not escaped Earth? (Based on "Silver Surfer" v.2 #1)
#* This world was designated Earth-912 in "Marvel Encyclopedia: Fantastic Four".
# What if the all-new, all-different X-Men had never existed? (Based on "Giant Size X-Men" #1)
#* Written by Kurt Busiek.
# What if Wolverine was lord of the vampires? (Based on "Uncanny X-Men" #159)
#* Visited by Quasar in "Quasar" #30. This world was designated Earth-9140 in "The Official Handbook of the Marvel Universe: Alternate Universes 2005". An alternate version features in "What If?" v.2 #37.
# What if the Marvel Super Heroes had lost Atlantis Attacks? (Based on "Iron Man" Annual #10)
#* Visited by Quasar in "Quasar" #30.
# What if the Punisher had killed Daredevil? (Based on "Daredevil" #183)
#* Written by Kurt Busiek.
# What if Namor had joined the Fantastic Four? (Based on "Fantastic Four" v.1 #4)
#* This world was designated Earth-917 in "Marvel Encyclopedia: Fantastic Four".
# What if Captain America had led an army of supersoldiers in World War 2? (Part 1 of 2) (Based on "Captain America Comics" #1)
# What if Captain America had formed the Avengers? (Part 2 of 2) (Based on "Captain America Comics" #1 and "Avengers" v.1 #4)
#* Recycles themes from "What If?" v.1 #44. Redone as "What If?" v.2 #103.
# What if the Fantastic Four's second child had lived? (Based on "Fantastic Four" v.1 #267)
#* Two takes; the worse world was designated Earth-91111, and the better Earth-91112, in "Marvel Encyclopedia: Fantastic Four".
# What if Spider-Man had kept his cosmic powers? (Based on "Amazing Spider-Man" v.1 #329)
# What if Phoenix had not died? (Part 1 of 2) (Based on "Uncanny X-Men" #137)
# What if Phoenix rose again? (Part 2 of 2) (Based on "Uncanny X-Men" #137)
#* A two-part remake of "What If?" v.1 #27.
# What if no one was watching the Watcher? (Humor issue)
# What if the Fantastic Five fought Doctor Doom & Annihilus? (Timequake Part 1 of 5)
#* An alternate outcome of "What If?" v.1 #1.
# What if the Cosmic Avengers battled the Guardians of the Galaxy? (Timequake Part 2 of 5)
#* A sequel to "What If?" v.2 #19's "Utopia" story.
# What if Wolverine had been lord of the vampires during Inferno? (Timequake Part 3 of 5)
#* An alternate version of "What If?" v.2 #24. This world was designated Earth-9250 in "The Official Handbook of the Marvel Universe: Alternate Universes 2005".
# What if Thor was a thrall of Seth? (Timequake Part 4 of 5) (Based on "The Mighty Thor" #400)
#* This world was designated Earth-9260 in "The Official Handbook of the Marvel Universe: Alternate Universes 2005".
# What if the Watcher saved the universe? (Timequake Part 5 of 5)
#* The events of Timequake were reflected later in "Avengers Forever".
# What if Storm of the X-Men had remained a thief? (Based on "Uncanny X-Men" #117)
#* Reprinted in "X-Men: Alterniverse Visions".
# What if the Avengers had fought Galactus? (Based on "Fantastic Four" v.1 #1 and "Fantastic Four" v.1 #48-50)
#* This world was designated Earth-929 in "Marvel Encyclopedia: Fantastic Four".
# What if Spider-Man had kept his six arms? (Based on "Amazing Spider-Man" v.1 #100)
# What if Wolverine had married Mariko? (Based on "Uncanny X-Men" #173)
# What if Venom had possessed the Punisher? (Based on "Web of Spider-Man" #1)
#* Written by Kurt Busiek.
# What if Barbara Ketch had become Ghost Rider? (Based on "Ghost Rider" v.3 #1)
#* This world was designated Earth-11993 in "The Official Handbook of the Marvel Universe: Alternate Universes 2005".
# What if Cable had destroyed the X-Men? (Part 1 of 2) (Based on "Uncanny X-Men" #269)
# What if Magneto took over the U.S.A.? (Part 2 of 2) (Based on "Uncanny X-Men" #269)
#* This world was designated Earth-21993 in "The Official Handbook of the Marvel Universe: Alternate Universes 2005".
# What if Daredevil had saved Nuke? (Based on "Daredevil" #233)
# What if the Silver Surfer possessed the Infinity Gauntlet? (Based on "Infinity Gauntlet" #4)
#* Another take appears in "What If?" v.2 #104.
# What if the Hulk had killed Wolverine? (Based on "The Incredible Hulk" #340)
#* A reversed sort-of remake of "What If?" v.1 #31.
# What if the Punisher became Captain America? (Based on "Captain America" v.1 #212)
# What if Doom became Sorcerer Supreme? (Based on "Fantastic Four" v.1 #5)
#* Written by Dan Slott. This world was designated Earth-938 in "Marvel Encyclopedia: Fantastic Four".
# What if... the Iron Man of 2020 had been stranded in the past?/Rick Jones and Bruce Banner had both remained as the Hulk?/Spider-Man had killed the Lizard?
#* Featuring Iron Man (based on "Amazing Spider-Man" Annual #20), the Hulk (based on "The Incredible Hulk" #332), and Spider-Man (based on "Spider-Man" #5).
# What if Death's Head I had lived? (Based on "Death's Head II" #1)
#* The only Marvel UK-themed issue
#* Written and pencilled by Death's Head I co-creators Simon Furman and Geoff Senior, Furman later claimed that this issue's high body count was a sort of revenge for killing the character
# What if the Avengers lost ? (Part 1 of 2) (Based on "Avengers" v.1 #346)
# What if the Avengers lost ? (Part 2 of 2) (Based on "Avengers" v.1 #346)
# What if the Punisher became an agent of S.H.I.E.L.D.?
# What if the Punisher killed Spider-Man? (Based on "Amazing Spider-Man" #129)
# What if Wolverine led Alpha Flight? (Based on "Uncanny X-Men" #121)
#* Reprinted in "X-Men: Alterniverse Visions".
# A What if X-Men wedding album
#* Three different stories all related to the Cyclops-Jean Grey relationship, looking at what would have happened had Scott married Jean in the early days of the X-Men, if the pair had never gotten together, and if Jean had married Wolverine instead. (Based on "Amazing Adventures" #11, "Uncanny X-Men" #1 and "Uncanny X-Men" #101)
# What if Spider-Man's parents destroyed his family? (Based on "Amazing Spider-Man" v.1 #387)
#* Written by Kurt Busiek.
# What if Wolverine battled Weapon X? (Based on "Marvel Comics Presents" #72)
#* Reprinted in "X-Men: Alterniverse Visions".
# What if War Machine had not destroyed the Living Laser? (Based on "Iron Man" v.1 #289)
#* The issue allows the reader to choose from three different endings.
#* Written by Dan Slott.
# What if Iron Man sold out? (Based on "Tales of Suspense" #39)
#* Strangely, no credits can be found in the issue, but the artwork appears to be that of Geoff Senior.
# What if Archangel fell from grace? (Based on "X-Factor" #25)
# What if Rogue possessed the power of Thor? (Based on "Avengers" Annual #10)
#* Reprinted in "X-Men: Alterniverse Visions".
# What if Captain America revived in 1994? (Part 1 of 2) (Based on "Avengers" v.1 #4)
# What if Captain America revived in 1994? (Part 2 of 2) (Based on "Avengers" v.1 #4)
#* A remake of "What If?" v.1 #44.
# What if Stryfe killed the X-Men? (Based on "X-Force" v.1 #18)
#* Reprinted in "X-Men: Alterniverse Visions".
# What if the Silver Surfer had not betrayed Galactus? (Based on "Fantastic Four" v.1 #50)
#* This world was designated Earth-952 in "Marvel Encyclopedia: Fantastic Four".
# What if the gamma bomb spawned a thousand Hulks?
# What if Spider-Man was a murderer? (Based on "Amazing Fantasy" v.1 #15)
#* Written by Ben Raab.
# What if Kingpin owned Daredevil? (Based on "Daredevil" #1)
# What if Mr. Sinister formed the X-Men? (Based on "Uncanny X-Men" #1)
#* Written by Ben Raab.
# What if Blink from Generation X had not died? (Based on "X-Men" #37)
# What if Peter Parker had to destroy Spider-Man? (Based on "Amazing Fantasy" v.1 #15)
#* The last issue to officially feature the Watcher as narrator (although he had been absent from several previous issues). This story is another take on one of the three from "What If?" v.1 #7.
# What if Legion had killed Magneto? (Based on "Uncanny X-Men" #320)
#* Plot by Benny R. Powell. Dialogue by Warren Ellis
# What if the New Fantastic Four had remained a team? (Based on "Fantastic Four" v.1 #349)
#* This world was designated Earth-9510 in "Marvel Encyclopedia: Fantastic Four".
# What if Storm had the power of Phoenix? (Based on "Uncanny X-Men" #100)
# What if the Hulk had evolved into the Maestro? (Based on "The Incredible Hulk" #377)
# What if the Age of Apocalypse had not ended? (Based on "X-Men: Omega")
# What if J. Jonah Jameson adopted Spider-Man? (Based on "Amazing Spider-Man" #1)
# What if Daredevil was the disciple of Doctor Strange? (Based on "Strange Tales" #110 and "Daredevil" #1)
# What if Shard had lived instead of Bishop? (Based on "Uncanny X-Men" #282)
# What if Magneto ruled all mutants? (Based on "Uncanny X-Men" #304)
# What if Scarlet Spider killed Spider-Man? (Based on "Web of Spider-Man" #129)
# What if... starring Sabretooth: Screams in the night! (What If Sabretooth was loose in the X-Mansion?)
#* Starting with this issue, the covers no longer explicitly state what each story's "what if" is, making them more like DC Comics' Elseworlds.
# What if... starring Spider-Man: Arachnamorphosis (What if Spiderman evolved into a Spider Monster? - Based on "Amazing Fantasy" v.1 #15)
#* Written by Ben Raab.
# What if... starring the Fantastic Four: Deadly inheritance (What If the Fantastic Four's powers were out of control? - Based on "Fantastic Four" v.1 #1)
#* Written by Ben Raab. This world was designated Earth-969 in "Marvel Encyclopedia: Fantastic Four".
# What if... starring Cyclops and Havok: Their early years, their darkest fears! (What If Cyclops and Havok weren't Orphaned?)
# What if... starring The Incredible Hulk: The man, the monster (What If Bruce Banner was savage and the Hulk intelligent? - Based on "The Incredible Hulk" v.1 #1)
# What if... starring Cannonball's little brother, Josh-- and his pet Sentinel! (What if Josh discovered a Sentinel?)
#* Fairly similar in plot to the recent "Sentinel" series.
# What if... starring Wolverine: A man no more (What if Wolverine became savage? - Based on "Wolverine" v.2 #100)
# What if... starring Juggernaut: The kingdom of Cain (What if Juggernaut killed Xavier and the X-Men? - Based on "Uncanny X-Men" #12)
# What if... starring Ghost Rider: Burn, baby, burn! (What If Ghost Rider was different? - Based on "Ghost Rider" #1)
# What if... starring Quicksilver: The Quick and the Dead (What If Magneto had raised his children?)
# What if... starring Black Knight: Camelot Reborn (What if Doctor Doom had conquered Camelot?)
# What if... starring Rogue: Children in the Attic (What if Mystique had raised Nightcrawler?)
# What if... starring Spider-Man: The Men behind the Mask (What If Black Cat was a Celebrity?)
# What if... starring Gambit: The greatest secret of the Marvel Universe revealed!
#* What If Mr Sinister learned the Greatest Secrets of the Marvel Universe?
#* What If the Fantastic Four had crashed in the Land of Oz after gaining their powers?
#* What If Peter Parker was bitten by a Radioactive Sheep!?
#* What If Wolverine was a wimp?
#* What If Xavier was in charge of a Sales Executive Company?
#* What If Wolverine and Sabretooth were best friends?
# What if... starring Archangel: Death and disobedience (What If Angel killed X-Factor and Horsemen - Based on "X-Factor" #25)
#* Also includes... What If Gambit was a Card Hustler?
# What if... starring Daredevil: The fight of his life... has ended! (What If Matt Murdock had become a boxer like his father? - Based on "Daredevil" #1)
# What if... starring Captain America: The unknown soldier (What If Captain America had awoken in a Dytopian America? - Based on "Avengers" v.1 #4)
#* A remake of "What If?" v.2 #28-29)
# What if... starring the Silver Surfer (What If the Impossible Man possessed the Infinity Guantlet? - Based on "Infinity Gauntlet" #4)
#* A variation on "What If?" v.2 #49.
# What if... starring Spider-Girl (What if Spider-Man and Mary Jane's child had survived?)
#* The first appearance of Spider-Girl. Later spun off into the Marvel Comics 2 line. This world was designated Earth-982 in "Marvel Encyclopedia: Fantastic Four".
#* Also includes... What If Bucky survived and was Cap's Partner?
# What if... starring Gambit: Revenge! (What if Marrow killed Gambit? - Based on "Uncanny X-Men" #350)
# What if... starring The Mighty Thor: ... and who shall be king?! (What If Thor had first appeared in the Golden Age of Comics?)
# What if... starring the Avengers (What if Carnage had bonded permentally to the Silver Surfer? - Based on "Amazing Spider-Man" #431)
# What if... starring the Fantastic Four: The Thing... human again?! (What if Ben Grim stayed in Liddle-ville? Based on "Fantastic Four" v.1 #236)
#* This world was designated Earth-989 in "Marvel Encyclopedia: Fantastic Four".
# What if... starring The Uncanny X-Men: With Phoenix possessed... who will save Professor X... from the fury of Colossus? (What if Colossus had joined the USSR's Super Soldiers? - Based on "Giant Size X-Men" #1)
#* Also includes... What If Doctor Doom succeeded in conquering the World?
# What if... starring Wolverine (What if Wolverine was a Horseman of War? - Based on "Wolverine" #100)
# What if... starring Ka-Zar: New York... the new Savage Land... no escape! (What If Thanos turned Manhattan into a Savage Land?)
# What if... starring Iron Man: Alone against Dormammu... Tony Stark-- Sorcerer Supreme? (What if Tony Stark had become Sorcerer Supreme? - Based on "Strange Tales" #110 and "Tales of Suspense" #39)
# What if... starring Secret Wars: 25 years later... comes a new generation of heroes! (What if all the participants of Secret Wars had been trapped on Battleworld? - Based on "Secret Wars" #12)
#* Final issue. Written by Jay Faerber. This world was designated Earth-9811 in "Marvel Encyclopedia: Fantastic Four".

Issue number "Minus One", "What if... starring Bishop" (based on "Uncanny X-Men" #282), was published as a part of the "Flashback" event, in which most of Marvel's series published issues numbered -1 that were set in the past.

Marvel Alterniverse

Alterniverse, it was what Marvel briefly labeled their What If stories from 1995-96. The stories told under the Alterniverse label are typically one-shots and limited series.

Third series (2005)

A series of "What If" one-shot issues was released cover-dated February 2005.

*What if Karen Page had lived?
*What if Doctor Doom had become the Thing?
*What if General Ross had become The Hulk?
*What if Jessica Jones had joined The Avengers?
*What if Professor X and Magneto formed the X-Men together?
*What if Aunt May died instead of Uncle Ben?

The series was later collected into a trade paperback entitled "What If: Why Not".

Fourth series (Early 2006)

The February 2006 one-shots took place in a single fictional universe, dubbed Earth-717 in previews. [http://www.newsarama.com/marvelnew/Dec_previews/whatifcap.htm]
*What if Captain America had lived in the American Civil War?
*What if the Fantastic Four were cosmonauts?
*What if the Submariner lived with his human father?
*What if Daredevil had lived in Feudal Japan?
*What if Thor was herald of Galactus?
*What if Wolverine became the Punisher in the 1920s?

The series was later collected into a trade paperback entitled "What If: Mirror Mirror".

Fifth series (Late 2006)

The November 2006 one-shots were based on major storylines or crossovers:
*What If: Avengers Disassembled - What If the Scarlet Witch hadn't acted alone?
*What If: - What If Peter Parker rejected his inner spider?
*What If: - What If Wolverine was never deprogrammed?
*What If: Age of Apocalypse - What If both Xavier and Magneto were killed by Legion?
*What If: - What If Vulcan became the leader of the X-Men?

The series was later collected into a trade paperback entitled "What If: Event Horizon" featuring the cover from the Spider-Man one-shot.

ixth Series (2007)

The sixth series of What If? continued the theme of the previous series of examining possible alternatives for major storylines.

"What If: Planet Hulk"
*- What If Caiera the Oldstrong had survived the destruction on Sakaar instead of Hulk?
*- What If Hulk had landed on the planet the Illuminati had intended for him?
*- What If Hulk had reverted back to Bruce Banner when he crashed on Sakaar?"What If: Annihilation"
* - What If the Annihilation Wave reached Earth?"What If: X-Men: Rise and Fall of the Shi'ar Empire"
* - What If Vulcan absorbed the energies of the M'Kraan Crystal and became Phoenix?"What If: Civil War"
*- What If Captain America led "all" the heroes against the Registration Act?
*- What If Iron Man "lost" the Civil War?"What If: Spider-Man vs Wolverine"
*- What If Spider-Man had remained in 1980s Russia after an accidental death?

The series was also due to feature What If?: The New Fantastic Four, which featured the 'original' New Fantastic Four with Spider-Man, Wolverine, Ghost Rider and Hulk teaming up, as seen in "Fantastic Four" #347. This story was halted due to the passing of artist Mike Wieringo, and was released as a 48-Page Special as a tribute in June 2008. All the issues of this run, aside from the New Fantastic Four, were later collected into a trade paperback simply entitled "What If? Civil War"

eventh Series (2008)

This series continues the theme of alternatives for three recent Marvel events along with two round a classic event. However, this series also features a storyline featuring the Runaways that runs though all five comics. This series will be released starting weekly in December 2008.

* "What If House of M" - What if the Scarlet Witch had said 'No More Powers' instead of 'No More Mutants'?
* "What If " - What if Iron Man had been killed instead of Captain America?
* "What If Spider-Man: Back in Black" - What if Mary Jane had been shot instead of Aunt May?
* "What If Infinity Gauntlet" - What if the New Fantastic Four had battled Thanos?
* "What If Secret Wars" - What if Doctor Doom had kept the Beyonder's power?
* "What If Runaways" - What if the Runaways had become the Young Avengers? (Runs though all five above issues)