2011 · 核心规则（开始对局的最低要求）
D20 Open RPG
A free, d20-based tabletop roleplaying system with talent-based character creation instead of fixed classes. Characters develop through a unified system for talents, skills, abilities, and saving throws, allowing a wide range of concepts. Combat uses Action Points, while movement is handled with Movement Points. Fatigue Points add an additional resource for representing exertion and physical strain.
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 Open RPG
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。