2007 · 资料书（用于增强玩法的规则/选项）
Countermeasures
This supplement adds tools for hindering or neutralizing psionic powers, including three feats, more than fifteen items, an organization, a location, and a prestige class. The rules are intended for players and game masters facing psionic creatures, and can also apply to magic in campaigns that use psionic-magic transparency.
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 Countermeasures
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。