| All Series | No on Sale Date | On Sale Date |
| Skull the Slayer | |||||
| number | publicationdate | sortcode | onsaledate | genre | |
| 1 | August 1975 | 58051 | 1975-05-27 | science fiction | Original work |
| 2 | November 1975 | 58052 | 1975-07-22 | science fiction | Original work |
| 3 | January 1976 | 58054 | 1975-09-23 | science fiction | Original work |
| 4 | March 1976 | 58056 | 1975-12-09 | science fiction; sword and sorcery | Original work |
| 5 | May 1976 | 58058 | 1976-02-03 | science fiction | Original work |
| 6 | July 1976 | 58060 | 1976-04-06 | science fiction | Original work |
| 7 | September 1976 | 58062 | 1976-06-01 | science fiction | Original work |
| 8 | November 1976 | 58064 | 1976-08-03 | science fiction | Original work |