2005 · ソースブック（プレイを拡張するルール／オプション）
Mater Ecclesia
This sourcebook explores the mortal servants of the Holy Mother Church in 27th-century Europe, from isolated monasteries and busy Order cities to public ministries and secretive circles. It details their way of life, doctrines, rites, education, and hidden knowledge. The book provides background and story hooks for portraying church institutions and their servants, expanding the setting and atmosphere of an Engel chronicle with conflicts involving the Church’s major organizations.
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。