2012 · 核心规则（开始对局的最低要求）
D20 SRD (3.5) Books 1-5
An annotated and reformatted reference for the d20 System, organized into five books covering major rules topics. It includes core material from the System Reference Document alongside variant and house rules used in the editor’s campaign.
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 D20 SRD (3.5) Books 1-5
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。