2021 · ソースブック（プレイを拡張するルール／オプション）
GURPS Magical Styles: Horror Magic
This supplement adapts the structured magic of GURPS for horror campaigns where supernatural knowledge is secret, dangerous, and often corrupting. It presents three magical styles: Cult Secrets, practiced through occult ceremonies for demons or dark gods; The Dark Path, pursued by solitary seekers of forbidden knowledge; and Forgotten Wisdom, an older tradition that includes curses. The styles provide spells, skills, and character concepts for occultists whose magic carries serious personal and moral risks.
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）
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