2016 · 资料书（用于增强玩法的规则/选项）
Curious Calibres
This RPG supplement presents six unusual types of pistol from the fictional island of Darkisle, described in the 1920s by firearms expert Lucius Carnford. Reproduced in sepia, it provides background and game-use information for mid-20th-century settings, including specific statistics for Call of Cthulhu.
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 Curious Calibres
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。