2003 · 资料书（用于增强玩法的规则/选项）
Organizations of the Underdark
This web enhancement for the Forgotten Realms Underdark accessory describes three organizations whose members come from multiple races and cultures. It explores the factions, alliances, and goals that shape life beneath the surface, from survival to supremacy. The material is designed for use in a Forgotten Realms campaign and can be adapted to other Dungeons & Dragons settings.
骰子（主要为 d20）等级制（获得经验值并升级）基于属性/数值（STR、CON、PER 等）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Organizations of the Underdark
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。