2000 · 资料书（用于增强玩法的规则/选项）
Grand Duchy of Geoff
A setting guide to Geoff, a rugged civilized nation in the Flanaess. It presents the native Flan people and their Old Ways, along with the Oeridian and Suloise influences that shape the duchy and its culture.
基于属性/数值（STR、CON、PER 等）骰子（主要为 d20）等级制（获得经验值并升级）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Grand Duchy of Geoff
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。