2017 · 资料书（用于增强玩法的规则/选项）
The Thirteen
A supporting booklet for 7th Edition Call of Cthulhu and the Cthulhu by Gaslight setting, detailing Hudson & Brand, a consulting detective agency in the tradition of Sherlock Holmes and Hercule Poirot. It expands this unusual corner of the setting for Keepers to incorporate into their investigations and campaigns.
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 Thirteen
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。