2020 · 资料书（用于增强玩法的规则/选项）
Caves, Caverns & Underground Encounters
An overview of caves, caverns, and underground encounters for tabletop roleplaying games. It provides reference material and suggestions that Game Masters can use during play or when preparing adventures.
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Caves, Caverns & Underground Encounters
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。