I worked with the team at Witch & Craft Games to create this urban fantasy tabletop roleplaying game, in which you must face your personal demons made manifest within 12 days, or an unspeakable evil arrives to devour you.  I wrote all sections of the rulebook which did not deal with the game's rules (i.e. story snippets, demon descriptions, sidebars, etc.), was the sole editor of the book, and participated in the livestreamed playtests.