2012 · 非游戏书籍（但与角色扮演游戏相关）
Oddities Found in Old School D&D Rules
This reference work examines inconsistencies, typos, layout problems, and other oddities found in early fantasy role-playing rulebooks. It places these quirks in the context of handwritten manuscripts, manual page layout, changing printings, and irregularly published errata. Some entries may appear only in particular editions, and the text distinguishes printing variation from definite rules errors.
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骰子（多种）等级制（获得经验值并升级）基于种族（玩家的种族/物种影响游戏玩法）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Oddities Found in Old School D&D Rules
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。