2003 · 资料书（用于增强玩法的规则/选项）
Empire
This d20 supplement provides rules for rising from a wandering hero to the ruler of a kingdom. It covers managing baronies and empires, conducting political campaigns, and resolving battles involving thousands of troops. The book includes new classes and prestige classes, sample military units and foes, and a complete system for administering kingdoms and their resources.
技能型（购买或获得技能）基于属性/数值（STR、CON、PER 等）等级制（获得经验值并升级）
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。