2003 · ソースブック（プレイを拡張するルール／オプション）
GURPS Klingons (3E)
This sourcebook explores the Klingon Empire, covering its history from Kahless and the Old Kings through its return to the stars and imperial expansion. It details Klingon biology, culture, government, military, nobility, religion, economy, law, intelligence agencies, and secret police. The book surveys 23 star systems and more than 100 planets, and provides game statistics for over 100 Klingon starship types and variants. It also includes weapons, technology, deck plans, medals, rank insignia, and adventure scenarios involving deals, experiments, and dangerous missions.
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。