1992 · 战役设定（游戏世界）
UND90: Hyborea Net Book
A setting guide to Hyborea, a harsh frontier region of Mystara inhabited by Humans and monstrous peoples who have endured cataclysms and outside influence. It describes their cultures and the efforts of Immortals to bring them into contact with the Known World’s human powers as equals.
资料书（用于增强玩法的规则/选项）等级制（获得经验值并升级）职业制（飞行员、巫师、科学家等）基于种族（玩家的种族/物种影响游戏玩法）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 UND90: Hyborea Net Book
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。