2015 · ソースブック（プレイを拡張するルール／オプション）
The Thunder Trail
This setting supplement explores the Thunder Trains, mechamagical engines that have restored trade across Aden after the Darkfal while enriching the Iron Tyrant. It details the Iron Guard, four known Thunder Trains and the routes, weapons, and special properties associated with them. The book also includes game statistics for the Sentinels, powerful golems devoted to defending the trains, along with additional information about their role in Aden.
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。