2025 · 资料书（用于增强玩法的规则/选项）
Bestiary of the Empire
An illustrated bestiary presenting 16 magnificent and monstrous creatures from across the Empire, including its skies, frozen northern wastes, southern deserts, and lightless underworld. Each entry includes lore, a full Old-School Essentials stat block, and an adventure hook for use in fantasy campaigns. The book also contains a hyperlinked index and both color and printer-friendly versions.
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 Bestiary of the Empire
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。