2021 · ソースブック（プレイを拡張するルール／オプション）
1879 Game Master's Companion
A roleplaying supplement set in an alternate Victorian era where a portal has opened to the Gruv, bringing the British Empire into conflict with the Samsut and the native Saurids. Magic has returned, strange peoples and powers have appeared, and advanced inventions include airships, lightning guns, and microsteam engines. The book expands the setting with new vehicles, secret societies, diseases and other period hazards, creatures, spirits, and dragons. It also provides tools for creating additional creatures and a timeline of events leading up to the present, giving Game Masters new challenges, allies, enemies, and story possibilities.
スキルベース（スキルを購入または獲得）クラス制（パイロット、ウィザード、サイエンティストなど）
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。