2003 · 资料书（用于增强玩法的规则/选项）
Earth Companion
This sourcebook details the New Earth Commonwealth and its Colonial Expeditionary Force, a major power in the Heavy Gear universe. It covers the history, culture, geography, and daily life of 62nd-century Earth, along with the CEF’s organization, strategies, uniforms, medals, and procedures. The book also includes characters, equipment, fighting vehicles, and fleet information for the Commonwealth and its gene-engineered military forces.
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Earth Companion
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。