Folk Horror: Creating a Campaign Bible is a system-neutral guide to building and maintaining a bible for fantasy roleplaying. A bible, also called a series bible, is a working document that keeps everything about a setting organized, from overarching themes to small but important details. Writers use them all the time, especially in television, where consistency matters across multiple episodes and seasons. There’s nothing religious about the term, despite what bad-faith arguments might claim. It’s a tool, one that helps you track the key elements of your setting so you don’t contradict yourself or lose track of what makes it unique.
This book focuses on folk horror, a genre built on isolation, old traditions, and the creeping sense that something isn’t right. Folk horror thrives on hidden histories, landscapes with a memory, and communities with rules outsiders don’t understand. When a roleplaying setting leans into this genre, the details matter even more. Keeping track of regional superstitions, forbidden places, and the subtle ways fear manifests ensures a setting that feels lived-in rather than thrown together.