Serious Sam: Siberian Mayhem (2022)
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.
star 7.4 from 30 ratings.
- Release Date: January 25, 2022
- Developer: Croteam