Explore Westminster, London on a journey to the ruins of Hanwell. Fight with whatever you can find or use the environment to defend yourself against an ever increasing scourge of Anomalies.
Serious Sam: Siberian Mayhem is a new stand-alone expansion to the world of the classic FPS series. Join the fight against Notorious Mental on a journey through the wild lands of Russia, and find your way through this lost chapter of Sam Stone's adventures.
