2013 · 资料书（用于增强玩法的规则/选项）
File Off the Serial Numbers
This d20 sourcebook explains how to repurpose existing monster stat blocks as humanoid NPCs in different roles. It includes more than 80 examples, such as using a young black dragon as a lizardfolk sorcerer or a yeti as a barbarian, along with guidance for swapping or ignoring irrelevant abilities. Reference tables organize suggested roles by challenge rating, class, and creature size, helping game masters quickly create NPCs and adversaries when the player characters take an unexpected turn.
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）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 File Off the Serial Numbers
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。