2007 · 资料书（用于增强玩法的规则/选项）
True20 Companion
A roleplaying supplement for adapting the True20 system to different adventure-fiction genres, including fantasy, science fiction, horror, and modern action. It provides guidance, suggestions, and optional rules for developing settings and stories in each genre. The book also includes rules for creating custom heroic roles or modifying the adept, expert, and warrior roles. Narrators can tailor character progression to a particular campaign or remove predefined roles altogether.
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 True20 Companion
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。