Rats in the Walls

Publisher's blurb: Rats in the Walls is a roleplaying game of cosmic horror, inspired by the writings of H.P Lovecraft (without the Mythos). The goal was to have a system that is simple enough to run quick one-shot adventures while at the same time, rich enough to allow for long-term play. The default setting are the roaring 20's but an appendix allows you to create medieval characters.