2005 · 非游戏书籍（但与角色扮演游戏相关）
Gary Gygax's Nation Builder
A worldbuilding sourcebook for creating fictional nations in realistic or fantastical settings. It organizes the development of political, social, and economic structures, with detailed examples and short case studies throughout. The material supports the creation of role-playing campaign settings, fictional stories, and other imagined worlds, while also providing a ready-made sample milieu and reference.
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 Gary Gygax's Nation Builder
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。