| Issue | #20 |
| Published | Winter 1980 |
| Frequency | four times a year |
| Cover Price | 1.25 USD |
| Pages | 68 |
| Editing | Jim Shooter (Editor-in-Chief); Lynn Graeme (Editor); Roger Stern (Co-Editor); Ralph Macchio (Associate Editor); Roy Thomas (Consulting Editor) |
| Genre | adventure; science fiction |
| Pencils | Howard Chaykin (signed, painting) |
| Inks | Howard Chaykin (signed, painting) |
| Colors | Howard Chaykin (signed, painting) |
| Letters | typeset |
| Genre | science fiction |
| Pencils | George Perez |
| Inks | George Perez |
| Notes | On the inside front cover. |
| Pencils | Dave Cockrum (illustration) |
| Inks | ? [as The Crusty Bunkers] (illustration) |
| Letters | typeset |
| Script | Howard Chaykin |
| Pencils | Howard Chaykin (illustrations) |
| Inks | Howard Chaykin (illustrations) |
| Letters | typeset |
| Notes | Illustrations taken from story |
| Script | Roger Stern |
| Pencils | Howard Chaykin (illustration) |
| Inks | Howard Chaykin (illustration) |
| Letters | typeset |
| Notes | illustration taken from story. |
| Genre | adventure |
| Script | Len Wein |
| Pencils | Howard Chaykin |
| Inks | Howard Chaykin |
| Reprinted | from Marvel Preview (Marvel, 1975 series) #2 (1975) |
| Script | Roger Stern |
| Pencils | Howard Chaykin (illustration) |
| Inks | Howard Chaykin (illustration) |
| Letters | typeset |
| Notes | illustration taken from story. |
| Genre | adventure |
| Script | Howard Chaykin |
| Pencils | Howard Chaykin |
| Inks | Howard Chaykin |
| Reprinted | from Marvel Super Action (Marvel, 1976 series) #1 (January 1976) |
| Script | Roger Stern |
| Pencils | George Perez (illustration) |
| Inks | Rico Rival (illustration) |
| Letters | typeset |
| Notes | Illustration taken from story. |
| Genre | science fiction |
| Script | Tony Isabella |
| Pencils | George Perez |
| Inks | Rico Rival |
| Reprinted | from Unknown Worlds of Science Fiction (Marvel, 1975 series) #2 (March 1975) |
| Script | Roger Stern |
| Pencils | Dave Cockrum (illustration) |
| Inks | ? [as The Crusty Bunkers] (illustration) |
| Letters | typeset |
| Notes | Illustration taken from story. |
| Script | Marv Wolfman |
| Pencils | Dave Cockrum |
| Inks | Neal Adams; Terry Austin; Pat Broderick; Russ Heath; Josef Rubinstein |
| Notes | All inkers credited as "The Crusty Bunkers." |
| Reprinted | from Marvel Preview (Marvel, 1975 series) #1 (1975) |
| Script | Roger Stern |
| Pencils | ? (illustrations) |
| Inks | ? (illustrations) |
| Letters | typeset |
| Notes | Illustrated with various panels from the stories in this issue. |
| Letters | typeset |
| Genre | superhero |
| Pencils | Bill Sienkiewicz |
| Letters | typeset |