2006 · 资料书（用于增强玩法的规则/选项）
Boxing
A rules supplement for adding boxing matches to d20 games. It covers the basics of fighting opponents in a ring or arena, focusing on punching and the goal of knocking an opponent unconscious.
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。