2005 · 资料书（用于增强玩法的规则/选项）
Danger on the High Seas
A d20 supplement for sailing and boating adventures. It provides material for players and Game Masters to incorporate into campaigns, with the Game Master deciding which rules and content are appropriate for the game.
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 Danger on the High Seas
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。