2013 · ソースブック（プレイを拡張するルール／オプション）
GURPS Thaumatology: Ritual Path Magic
A complete, self-contained magic system for GURPS, designed to represent traditions from real-world practices and modern fantasy. Players create improvised spells and elaborate rituals using core and Path skills, gathering energy and applying modifiers to achieve desired effects. The system covers charms, elixirs, grimoires, places of power, enchanted items, magical failures, limitations, and ways to combine it with other magic systems. More than 80 sample rituals demonstrate effects such as healing, injury, communication, and protection.
スキルベース（スキルを購入または獲得）ポイント制（ポイントを割り振ってスキルや能力を得る）ダイス（主にd6）
無料・Web、Android、iOS対応
LudoyaでGURPS Thaumatology: Ritual Path Magicを遊ぼう
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。