Serious Sam: Siberian Mayhem, Siberian Forests new expansion for PC.

Croteam breaks down the tundra in Serious Sam: Siberian Mayhem with Timelock Studio.

Started as a simple ambitious project by the independent Russian modding studio Timelock Studio licensed by Serious Sam before becoming a real standalone adventure led by Croteam, Serious Sam: Siberian Mayhem will plunge players into northern Russia, more specifically along the Arctic coasts, into the heart of desolate forests, on the outskirts of abandoned villages and in the meanders of a ghost town to live through five brand new missions with a deadly arsenal, unexpected vehicles and new enemies.

Serious Sam: Siberian Mayhem trailer

Serious Sam: Siberian Mayhem is scheduled to release on January 25 on PC via Steam. There is no release date for a possible console version. Please note that owners of Serious Sam 4 can take advantage of the discount.