1999 · 资料书（用于增强玩法的规则/选项）
The Book of Secrets
This collection expands the Ravenloft and Masque of the Red Death settings with articles on their people, places, monsters, and hidden histories. It also presents new rules and guidance for running games in the Demiplane of Dread and Gothic Earth, focusing on secrets as sources of danger and horror.
等级制（获得经验值并升级）职业制（飞行员、巫师、科学家等）基于种族（玩家的种族/物种影响游戏玩法）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 The Book of Secrets
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。