2022 · 资料书（用于增强玩法的规则/选项）
100 Notes, Letters or Graffiti to Find in or About Undermountain
A collection of 100 notes, letters, and pieces of graffiti connected to Undermountain and its first eleven levels. The writings may appear on bodies, inside desks, or scrawled across dungeon walls, with supplementary tables for generating notes and graffiti. Each entry presents the text and explains what it refers to. Some provide useful information, while others are meaningless or ambiguous, leaving their interpretation to the Dungeon Master.
基于属性/数值（STR、CON、PER 等）等级制（获得经验值并升级）骰子（主要为 d20）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 100 Notes, Letters or Graffiti to Find in or About Undermountain
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。