2012 · 资料书（用于增强玩法的规则/选项）
Guide to Ratfolk
This roleplaying supplement details the ratfolk, who inhabit ruined keeps, city sewers, abandoned buildings, and sprawling underground tunnels. It covers their history, personality, physiology, and guidance for playing ratfolk characters, along with racial options, equipment, NPCs, and adventure hooks.
技能型（购买或获得技能）基于属性/数值（STR、CON、PER 等）等级制（获得经验值并升级）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Guide to Ratfolk
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。