资料书（用于增强玩法的规则/选项）
A Dozen Unusual Doors
This fantasy roleplaying supplement presents twelve unusual dungeon doors crafted by the dwarven artisan Belkarath Mountaincrawler. Each door is a valuable, custom-made architectural treasure rather than a conventional trap, with a history tied to one of the craftsman's clients. The doors can be placed in dungeons, palaces, museums, or other locations throughout a campaign world.
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 A Dozen Unusual Doors
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。