From publisher blurb:
Dark Albion: Cults of Chaos is a gaming supplement for [Dark Albion], as well as most OSR fantasy-horror role-playing games. It will help you generate various Chaos Cults in detail (many tables provided). It then describes the most common Chaos cults found in Albion (those worshiping demons, and others), gives advice on how running Chaos cults adventures (several tables provided), and proposes three ready-to-use dungeons (i.e.: maps plus descriptions of contents of three dungeons that would be perfect for cultists lairs). This supplement is usable with any RPG of the OSR movement, such as Fantastic Heroes & Witchery, Osric, Labyrinth Lord, etc.