| Title | Pages | Publication | Code | Date | Publisher | System (Setting) |
|---|
 Campaigning | 33-49 |  Lands of Mystery | Hero 20 | 1985 | Hero Games | Call of Cthulhu (Classic), Justice Inc, Daredevils, Chill | |
 Trail of the Golden Spike | 3-27 | Trail of the Golden Spike | Hero 14 | 1984 | Hero Games | Call of Cthulhu (Classic), Justice Inc, Daredevils, Mercenaries, Spies and Private Eyes | |
| World and Character Creation | 8-32 | Lands of Mystery | Hero 20 | 1985 | Hero Games | Call of Cthulhu (Classic), Justice Inc, Daredevils, Chill | |
 Zorandar | 50-96 | Lands of Mystery | Hero 20 | 1985 | Hero Games | Call of Cthulhu (Classic), Justice Inc, Daredevils, Chill | |
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