From publisher blurb:
Remarkable Cults & Their Followers is the ultimate GM guide on roleplaying evil fantasy factions. This system-neutral sourcebook is compatible with any fantasy roleplaying game ruleset and contains everything you need to create and roleplay your own unique villainous guilds.
This brand-new book brings you exciting, intriguing, and complex evil factions, as well the tools to create your own. This includes villainous leaders and their cronies, rumors, new gameplay ideas, services, information on working for and against cults, gaining ranks and followers, and much, much more. This system-neutral book is not just about religious cults, but instead delights the imagination with a wide range of sinister organizations and factions to add to your game.