| What if...? (I) (1-47) (1977-1984) | ||||
| Series | No. | Date | Year | Title |
| What if...? | 1 | February | 1977 | What if Spider-Man had joined the Fantastic Four? (Fantastic Four, Spider-Man) |
| What if...? | 2 | April | 1977 | What if the Hulk had always had Bruce Banner's brain? (Hulk) |
| What if...? | 3 | June | 1977 | What if the Avengers had never been? (Avengers I) |
| What if...? | 4 | August | 1977 | What if the Invaders had stayed together after World War Two? (Invaders) |
| What if...? | 5 | October | 1977 | What if Captain America and Bucky had both survived World War II? (Captain America I) |
| What if...? | 6 | December | 1977 | What if the Fantastic Four had different super-powers? (Fantastic Four) |
| What if...? | 7 | February | 1978 | What if someone else had become -- the Amazing Spider-Man? (Spider-Man) |
| What if...? | 8 | April | 1978 | What if the world knew Daredevil was blind? (Daredevil) |
| What if the spider had been bitten by a radioactive human? | ||||
| What if...? | 9 | June | 1978 | What if the Avengers had been formed during the 1950's? (Avengers I) |
| What if...? | 10 | August | 1978 | What if Jane Foster had found -- the hammer of Thor? (Thor Odinson) |
| What if...? | 11 | October | 1978 | What if the Fantastic Four were the original Marvel Bullpen? (Fantastic Four) |
| What if...? | 12 | December | 1978 | What if Rick Jones had become the Hulk? (Hulk) |
| What if...? | 13 | February | 1979 | What if Conan the Barbarian walked the Earth today? (Conan) |
| What if...? | 14 | April | 1979 | What if Sgt. Fury and his Howling Commandos had fought World War II in outer space? (Nicholas Joseph Fury) |
| What if...? | 15 | July | 1979 | What if someone else had become Nova? (Nova, Taylor Helen, Jessie, Peter Benjamin Parker) |
| What if...? | 16 | August | 1979 | What if Shang-Chi, Master of Kung Fu, had remained loyal to Fu Manchu? (Shang-Chi) |
| What if...? | 17 | October | 1979 | What if Ghost Rider, Spider-Woman and Captain Marvel had remained villains? (Ghost Rider, Spider-Woman, Captain Marvel) |
| What if...? | 18 | December | 1979 | What if Dr. Strange were a disciple of Dormammu? (Dr. Strange) |
| What if...? | 19 | February | 1980 | What if Spider-Man had stopped the burglar who killed his uncle? (Spider-Man) |
| What if...? | 20 | April | 1980 | What if the Avengers had fought the Kree-Skrull War without Rick Jones? (Avengers I) |
| What if...? | 21 | June | 1980 | What if the Sub-Mariner had married the Invisible Girl? (Sub-Mariner; Fantastic Four) |
| What if...? | 22 | August | 1980 | What if Doctor Doom had become a hero? (Doctor Doom) |
| What if...? | 23 | October | 1980 | What if Hulk's girlfriend Jarella had not died? |
| Untold Tales of the Marvel Universe: The first celestial host! (Celestial) | ||||
| What if Aunt May instead of her nephew Peter had been bitten by that radioactive spider? (May Parker) | ||||
| What if...? | 24 | December | 1980 | What if Gwen Stacy had lived? (Spider-Man) |
| Untold Tales of the Marvel Universe: The first Eternals (Eternals) | ||||
| What if...? | 25 | February | 1981 | What if Thor fought Odin over Jane Foster? (Thor) |
| Untold Tales of the Marvel Universe: The first Uni-Mind (Eternals) | ||||
| What if...? | 26 | April | 1981 | What if Captain America were elected President? (Captain America) |
| What if the Man-Thing had regained Ted Sallis' brain? (Man-Thing) | ||||
| Untold Tales of the Marvel Universe: Outpost on Uranus (Eternals) | ||||
| What if...? | 27 | June | 1981 | What if Phoenix had not died? (X-Men) |
| Untold Tales of the Marvel Universe: Kree encounter! (Eternals) | ||||
| What if...? | 28 | August | 1981 | What if Ghost Rider were separated from Johnny Blaze? (Ghost Rider I) |
| Matt Murdock, Agent of... S.H.I.E.L.D. (Daredevil) | ||||
| Untold Tales of the Marvel Universe: New life (Eternals) | ||||
| What if...? | 29 | October | 1981 | What if the Avengers were the last super-heroes on earth? (Avengers) |
| Untold Tales of the Marvel Universe: ...The search for the Great Refuge! (Inhumans) | ||||
| What if Sub-Mariner never regained his memory? (Sub-Mariner) | ||||
| What if...? | 30 | December | 1981 | What if Spider-Man's clone had survived? (Spider-Man) |
| Untold Tales of the Marvel Universe: Moving day! (Inhumans) | ||||
| What if...? | 31 | February | 1982 | What if Wolverine had killed the Hulk? (Wolverine) |
| What if there was no Fantastic Four? (Fantastic Four) | ||||
| What if...? | 32 | April | 1982 | What if the Avengers had become the pawns of Korvac? (Avengers I) |
| What if...? | 33 | June | 1982 | What if the Dazzler had become the Herald of Galactus? (Dazzler) |
| What if Iron Man had been trapped in King Arthur's time? (Iron Man) | ||||
| What if...? | 34 | August | 1982 | What if the Watcher were a stand-up comedian? |
| What if...? | 35 | October | 1982 | What if Bullseye had not killed Elektra? (Elektra; Daredevil) |
| Untold Tales of the Marvel Universe: And thus are born the Cat People! | ||||
| What if Yellowjacket had died? (Avengers) | ||||
| What if...? | 36 | December | 1982 | What if the Fantastic Four had not gained their powers? (Fantastic Four) |
| What if Nova had not given up his powers? (Nova) | ||||
| What if...? | 37 | February | 1983 | What if the Thing had continued to mutate? (Fantastic Four) |
| What if -- the Beast had truly become a beast? (Beast) | ||||
| What if Galactus had turned the Silver Surfer back into Norrin Radd? (Silver Surfer) | ||||
| What if...? | 38 | April | 1983 | The leaving (Avengers) |
| What if Sharon Carter had not died? (Captain America) | ||||
| Daredevil: 2013! (Black Widow, Daredevil) | ||||
| What if...? | 39 | June | 1983 | What if Thor of Asgard had met Conan the Barbarian? (Conan, Thor Odinson) |
| What if...? | 40 | August | 1983 | What if Dr. Strange had never become master of the mystic arts? (Dr. Strange) |
| What if...? | 41 | October | 1983 | What if Destiny had not destroyed Atlantis? (Sub-Mariner) |
| What if...? | 42 | December | 1983 | What if Susan Richards died in childbirth? (Fantastic Four) |
| What if...? | 43 | February | 1984 | What if Conan the Barbarian were stranded in the 20th century? (Conan) |
| What if the Universe ceased to exist? (Doctor Strange, Phoenix, Silver Surfer) | ||||
| What if...? | 44 | April | 1984 | What if Captain America were not revived until today? (Captain America) |
| What if...? | 45 | June | 1984 | What if the Hulk went berserk?! (Hulk) |
| What if...? | 46 | August | 1984 | What if Spider-Man's uncle Ben had lived? (Spider-Man) |
| What if...? | 47 | October | 1984 | What if Loki found Thor's hammer first?! (Thor) |
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