Slaght Maand, “Slaughter Month”, was a fantasy horror event set in an analogue of medieval Wales. It was acclaimed for its cast of complex supporting characters and its inventive use of gore. We purposefully set out to create something a little different from the norm; a sandbox environment for the participants to explore, a series of gut-wrenching shocks, and some effects that hadn’t been seen before. The event needed a great deal of background and character writing and scripting, with detailed briefs for the supporting cast.