2016 · 资料书（用于增强玩法的规则/选项）
The Mark of Evil
A collection of printable ephemera and play aids for Keepers running The Things We Leave Behind. It gathers materials and images from the main book in a format that can be printed for use during sessions, along with forms, illustrations, and other oddities not tied to its scenarios. These additional items can also provide starting points for creating new scenarios.
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 The Mark of Evil
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。