2003 · ソースブック（プレイを拡張するルール／オプション）
The Slayer's Guide to Demons
This roleplaying supplement examines demons, their essence, the Abyss and the brutal society in which they exist. It details how demonic influence reaches the Material Plane, how characters can detect and eradicate it, and the dangers of pursuing demons into their home realm. The book also provides Game Masters with guidance for introducing demons into campaigns and portraying their motives, behavior and interactions. Its material supports adventures centered on chaos, corruption and the demons’ eternal war against all that exists.
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。