2004 · 资料书（用于增强玩法的规则/选项）
Secrets
A d20 fantasy roleplaying sourcebook built around hidden information and unexpected revelations. It presents dangerous “what if” situations and adventure hooks through the secrets of five campaign characters, giving Game Masters material to introduce new complications, redirect the story, and keep players guessing.
技能型（购买或获得技能）基于属性/数值（STR、CON、PER 等）等级制（获得经验值并升级）
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。