2012 · 资料书（用于增强玩法的规则/选项）
January 2012: Stronghold Upgrades
In a world of zombie survival, no stronghold is ever completely secure. Players choose modern or ancient technologies to add layers of protection, spot approaching attackers, and defend against intruders.
技能型（购买或获得技能）基于点数（分配点数以获得技能、能力等）基于属性/数值（STR、CON、PER 等）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 January 2012: Stronghold Upgrades
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。