2003 · 软件（用于地图、角色卡等）
VIPER: Coils of the Serpent (HD Character Pack)
A digital character pack containing the characters, equipment, and package deals from a superhero sourcebook in Hero Designer format. The files are designed for use with Hero Designer, which provides templates, error-checking, and a library of HERO System powers and skills. No artwork is included.
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）骰子（主要为 d6）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 VIPER: Coils of the Serpent (HD Character Pack)
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。