John HoulihanDiscover games that John Houlihan contributed to. Games listed on Pampa: 4.Games that John Houlihan contributed toAchtung! Cthulhu - Gamemaster's Screen & ToolkitAchtung! Cthulhu - Shadows of AtlantisAchtung! Cthulhu - Player's GuideAchtung! Cthulhu - Gamemaster's Guide