2021 · 资料书（用于增强玩法的规则/选项）
Mysteriously Missing & Merrily Met
A set of optional tables for Old-School Essentials and compatible classic fantasy role-playing games. It provides explanations for characters who miss a session, describing what they were doing in town, the wilderness, or a dungeon. Results range from minor incidents with little consequence to events that introduce new developments in a character’s story and the wider campaign.
基于属性/数值（STR、CON、PER 等）等级制（获得经验值并升级）职业制（飞行员、巫师、科学家等）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Mysteriously Missing & Merrily Met
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。