| 0 | (Dead) Man on the Moon | cover | 1 | pencils: Puigdomenech; inks: Puigdomenech; colors: Puigdomenech | |
| 1 | An Unknown World | illustration | 1 | pencils: Howard Chaykin; inks: Howard Chaykin | |
| 2 | Contents | credits, title page | 1 | pencils: John Allison; inks: John Allison | |
| 3 | He Just Received His Subscription Copy of Unknown Worlds of Science Fiction | promo (ad from the publisher) | 1 | pencils: Bob Kline; inks: Bob Kline | |
| 4 | Prologue: | comic story | 2 | script: Roy Thomas, Bob Shaw; pencils: Gene Colan; inks: Frank Chiaramonte; letters: Joe Rosen | Billy Lawton |
| 5 | Paradise Found | comic story | 14 | script: Bruce Jones; pencils: Gray Morrow; inks: Gray Morrow; letters: Gray Morrow | Frank Kennerly; John Benchley (death); Mac Henshaw (death); Cuddles; Reynolds; Walker (death); Pete (death); Orlando (death) |
| 6 | The Many Many Worlds of Larry Niven | text article | 6 | script: Alan Brennert, Larry Niven; pencils: Eliot R. Brown; inks: Rick Bryant | Larry Niven (photograph) |
| 7 | All the Myriad Ways | comic story | 10 | script: Larry Niven, Howard Chaykin; pencils: Howard Chaykin; inks: Howard Chaykin; letters: John Costanza | Detective Lieut. Gene Trimble (death); Ambrose Harmon (flashback, corpse); Bentley; Gary Wilcox (flashback) |
| 8 | Fantastic Worlds | text article | 3 | script: Don Thompson, Maggie Thompson; pencils: Mike Kaluta; inks: Mike Kaluta | |
| 9 | Addict | comic story | 9 | script: Don Glut; pencils: Virgilio Redondo; inks: Virgilio Redondo; letters: Marcos Pelayo | Dr. Mark Duncan; Mr. Kaiser |
| 10 | Half Life | comic story | 10 | script: John Allison; pencils: John Allison; inks: John Allison | Joe Ferone; Old Johnny (death) |
| 11 | Epilogue: | comic story | 1 | script: Roy Thomas, Bob Shaw; pencils: Gene Colan; inks: Frank Chiaramonte; letters: Joe Rosen | Billy Lawton (death) |
| 12 | - | letters page | 1.5 | script: Roy Thomas; pencils: Rick Bryant; inks: Rick Bryant | |
| 13 | Next Issue: | promo (ad from the publisher) | 0.5 | pencils: Rick Bryant; inks: Rick Bryant | |