2005 · 资料书（用于增强玩法的规则/选项）
Six Planar Gates
This short PDF presents six new planar gates for campaigns involving travel between planes. It describes locations including the Door of Fire, the Infinite Ladder, and the Unwanted Coach, along with three additional gates. The material is suitable for use with any d20 System game.
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 Six Planar Gates
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。