2010 · 战役设定（游戏世界）
Ertha's Realm
A fantasy roleplaying supplement about Ertha’s Realm, a vast subterranean world of caverns, tunnels, hidden cities, exiled elves, and fungals. It presents the Underearth as an environment for extended exploration rather than a series of isolated dungeons. The supplement provides rules for light, sound, movement, rope use, and tight squeezes while spelunking. It also details a minor god of underground exploration, an alien fungal deity, a new hazard, and eight subterranean monsters.
技能型（购买或获得技能）基于点数（分配点数以获得技能、能力等）基于属性/数值（STR、CON、PER 等）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Ertha's Realm
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。