2000 · 非游戏书籍（但与角色扮演游戏相关）
System Reference Document
A structured rules reference based on the third edition of a fantasy role-playing system, covering core mechanics and game content for use in compatible tabletop RPGs. The original version was released in 2000, with a revised edition following the 3.5 rules update in 2003. It is organized into topic-based documents and has also been distributed through compiled digital archives, with separate licensing and introductory materials.
基于属性/数值（STR、CON、PER 等）骰子（主要为 d20）等级制（获得经验值并升级）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 System Reference Document
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。