2007 · 资料书（用于增强玩法的规则/选项）
Gateways of the Planes
A 10-page guide for dungeon masters describing how portals can affect travelers as they cross between planes. It explores changes in scents, sounds, visibility, lighting, and air pressure, offering details for bringing portal crossings into fantasy settings.
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 Gateways of the Planes
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。