2005 · 核心规则（开始对局的最低要求）
Prime Directive d20
A science-fiction roleplaying game set in the Star Fleet Universe, with missions ranging from combat on the Klingon border and intrigue among the Romulans to encounters with Tholian forces, Orion pirates, and Vulcan society. Players create Star Fleet officers using new races, classes, skills, feats, military organizations, and technology such as phasers, replicators, and transporters. Characters can train at Star Fleet Academy before undertaking adventures across the frontier.
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 Prime Directive d20
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。