2005 · ソースブック（プレイを拡張するルール／オプション）
Infernum, Volume III: Book of the Conqueror
A roleplaying supplement about ruling a demonic domain in Hell. It provides rules for overseeing infernal subjects, harvesting damned souls, and building and maintaining structures ranging from fortifications and citadels to industrial sites that produce resources and armies. The book also covers political manipulation, blackmail, mass combat, and the creation and upkeep of infernal armies. It details domains across the nine Circles and includes an introductory adventure for first-level characters.
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）
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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。