2003 · 资料书（用于增强玩法的规则/选项）
Monsters of the Endless Dark
This illustrated d20 monster manual presents dozens of subterranean creatures and the underground realms they inhabit. Each entry includes descriptions, artwork, and notations covering details such as diet, habitat, and sleeping habits. The collection is framed as a guide compiled from decades of exploration, providing material for adventures in unlit realms of earth and stone. An accompanying online resource offers community support and fan-submitted entries.
骰子（多种）职业制（飞行员、巫师、科学家等）技能型（购买或获得技能）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Monsters of the Endless Dark
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。