Masks of Nyarlathotep: Perilous Adventures to Thwart the Dark God (Call of Cthulhu roleplaying)

Call of Cthulhu (d20 Edition Horror Roleplaying, WotC)

The Book of Random Tables: 1960s-1970s: 34 D100 Random Tables for Tabletop Role-playing Games (The Books of Random Tables)

The Book of Random Tables: Science Fiction: 25 Tabletop Role-Playing Game Random Tables (The Books of Random Tables)

The Creature Companion: A Core Game Book for Keepers (Call of Cthulhu Roleplaying Game)

The Keeper's Companion: Blasphemous Knowledge, Forbidden Secrets: A Core Book for Keepers, Vol. 1 (Call of Cthulhu Horror Roleplaying, #2388)

Bayt al Azif #5: A magazine for Cthulhu Mythos roleplaying games

1920s Investigator Companion (Call of Cthulhu Roleplaying)

The Book of Random Tables: Wild West: 26 1D100 Random Tables for Tabletop Role-Playing Games (The Books of Random Tables)