2006 · 资料书（用于增强玩法的规则/选项）
Prototype: Double Agent
This five-page PDF presents a playable Double Agent class for d20 Modern campaigns. Focused on information gathering, infiltration, and deception, the class represents operatives working for government intelligence agencies or privately funded organizations, sometimes serving two networks at once. It provides Game Masters with an additional character option for espionage-focused campaign settings and sessions.
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 Prototype: Double Agent
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。