2005 · コアルール（プレイに必要な最小限）
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.
スキルベース（スキルを購入または獲得）ポイント制（ポイントを割り振ってスキルや能力を得る）ダイス（主にd6）
ゲーム情報（人数、プレイ時間、対象年齢、クレジット）の出典：BoardGameGeek。