2005 · 资料书（用于增强玩法的规则/选项）
Secrets of Japan
This sourcebook presents modern Japan as a setting for cosmic-horror investigations, combining ancient Shinto and Buddhist traditions with corporations, political intrigue, mass media, and experimental technology. It provides new investigator occupations, spells, monsters, organizations, and rules for Japanese characters, along with cultural background, religious details, a glossary, and a secret history of Japan. Three adventure scenarios and two short stories support play in this setting.
技能型（购买或获得技能）基于属性/数值（STR、CON、PER 等）随机属性生成（在角色创建时）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Secrets of Japan
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。