Call of Cthulhu (1st Edition)
Cthulhu by Gaslight Cthulhu Classic (1920s & 1930s) Cthulhu Dark Ages Cthulhu Now Cthulhu Rising Delta Green Dreamlands
Horror (Cthulhu Mythos) Horror Occult Weird / Surreal Crime (Spy / Espionage) Crime (Conspiracy) Modern Fantasy History Adult / Mature History (American West) History (Britain / Ireland) History (Victorian Era) Science Fiction Action / Adventure (Pulp) History (Europe) Action / Adventure Politics / Government
Attribute/Stat Based (STR, CON, PER, etc) Dice (Percentile) Random Attribute Generation (during Character Creation) Skill Based (buy or gain skills)
The first edition of Call of Cthulhu was published in 1981, using a simplified version of the Basic Role-Playing system derived from RuneQuest. The original conception was called Dark Worlds, a game commissioned by Chaosium but never published.
