2023 · ソースブック（プレイを拡張するルール／オプション）
Orbital Debris
A moon-sized junkyard drifts unpredictably through space as its ancient core malfunctions, carrying debris from wars, disasters, and vanished civilizations. This campaign setting for the Mothership Sci-Fi Horror RPG presents 23 strange environments to explore, along with rival factions, unusual NPCs, rumors, alien threats, and dangerous technology. It provides material for a complete campaign or for adding scavenging sites and hazards to an existing science-fiction setting.
スキルベース（スキルを購入または獲得）属性／ステータス制（STR、CON、PERなど）レベル制（XPを獲得してレベルアップ）
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。