1998 · ソースブック（プレイを拡張するルール／オプション）
Field Manual: Warden Clans
This sourcebook explores the Clans descended from the Star League forces led away from the Inner Sphere by Aleksandr Kerensky. It focuses on the Warden philosophy, which seeks to protect and eventually reunite humanity rather than conquer the Inner Sphere. The book details the history, society, leaders, military organization, and strategic aims of the Warden Clans, providing background for campaigns set during the Clans’ return.
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）ダイス（主にd10）
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。