2019 · 资料书（用于增强玩法的规则/选项）
Hydra Operations Manual
A fan-made supplement for the classic Marvel Super Heroes RPG detailing the secretive Hydra organization. It includes profiles of Hydra personnel, descriptions of worldwide locations, game statistics for Hydra equipment, and a ready-to-play adventure centered on the terrorist group.
基于属性/数值（STR、CON、PER 等）行动表（表格决定行动结果）骰子（百分位）
免费，支持网页、Android 和 iOS
用 Ludoya 玩 Hydra Operations Manual
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。