2005 · Kaynak kitap (oyunu geliştirmek için kurallar/seçenekler)

SFX Skills: Diabolism

A toolkit for adding diabolism to modern or fantasy d20 role-playing games, drawing on occult horror traditions of demonic bargains, ritual sacrifice, and forbidden knowledge. It introduces a flexible SFX Skills system built around familiar feat and skill structures, with rules for controlling access, feats, and a Background for occult scholars. The system supports characters from 1st to 20th level and can be used in low- or high-magic settings. Guidance covers villainous NPCs, heroic characters, and using dark skills against their practitioners.