2020 · 资料书（用于增强玩法的规则/选项）
Alien Database - Free Sample
A sourcebook featuring five alien species for use in campaign settings. It includes Duergars and Eldars from classic fantasy, Greys and Reptoids from well-known urban legends, and Welsyan, a renamed version of the species from H. G. Wells' "The War of the Worlds".
基于属性/数值（STR、CON、PER 等）骰子（主要为 d6）等级制（获得经验值并升级）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Alien Database - Free Sample
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。