Call of Cthulhu (RPG)、 様々な時代
Cthulhu Through the Ages
- Cthulhu Through the Ages ( Chaosium / 2015 ) : Call of Cthulhu 7つの時代/セッティング。 (Roman Era, Dark Ages, Mythic Iceland, Dreamlands, Gaslight, Future, End Times)
Cthulhu by Gaslight
- Cthulhu by Gaslight (1st) ( Chaosium / 1986 ) : Call of Cthulhu 1890 年代 イギリス
- Cthulhu by Gaslight (2nd) ( Chaosium / 1988 )
- Cthulhu by Gaslight (3rd) ( Chaosium / 2012 )
No Man's Land
- No Man's Land: WWI Mythos Action with the Lost Battalion ( Chaosium / 1998 ) : Call of Cthulhu 第一次世界大戦 1918
Cthulhu Now
- Cthulhu Now (1st) ( Chaosium / 1987 ) : Call of Cthulhu (3rd) “現代”
- Cthulhu Now (2nd) ( Chaosium / 1992 ) : Call of Cthulhu (4th) “現代”
- 1990's Handbook ( Chaosium / 1995 )
Cthulhu Rising
- Cthulhu Rising ( Chaosium / 2005 ) : Call of Cthulhu 23 世紀 (2271) ULA Monograph