Blood Brothers (Call of Cthulhu No. 2329)

Secrets of Los Angeles: A Guidebook to the City of Angels in the 1920s (Call of Cthulhu Roleplaying)

Fatal Experiments (Call of Cthulhu Horror Roleplaying, 1920s, Chaosium# 2328)

Unseen Masters: Modern Struggles Against Hidden Powers (Cthulhu Modern Roleplaying)

H. P. Lovecraft's: Cthulhu Roleplaying Beyond the Wall of Sleep

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

The Keeper's Companion 2: Prohibition, Firearms, Tomes, & Creatures (Call of Cthulhu roleplaying)

The Game Master's Dungeon Journal

Cthulhu Parlour's: Hotel Lovecraft: Audio Horror Gamebook. Solo or 2-4 Players. (Cthulhu Parlour: Interactive adventures)

Last Rites: Four Present-Day Adventures for Call of Cthulhu (Call of Cthulhu Roleplaying Game)