2016 · ソースブック（プレイを拡張するルール／オプション）
Steam and Steel
This role-playing supplement presents an alternate Victorian setting shaped by steam power, steel machines, biological science, and metaphysical forces. The Royal Society’s Steam Knights oppose the Vril, serpent-like sorcerers from the Hollow Earth, alongside conspiracies involving the Illuminati, Freemasons, and other secret societies. It includes historical and fictional character profiles, campaign ideas, blood magic rules, organization rules, a Steampunk Computer skill, and a Gadgeteer stunt tree. Fate Core and Mecha vs. Kaiju rules cover steam-powered extras, vehicles, mecha, and their customization.
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）特性／アスペクト制（性格がゲームプレイに影響する）
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。