What is Serious Sam: Siberian Mayhem Xbox Series X|S?

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. This page focuses specifically on the Xbox Series X|S version of the game, including prices, regions, activation methods and compatible storefronts.

How can I find the best price for Serious Sam: Siberian Mayhem Xbox Series X|S?

We track live prices for Serious Sam: Siberian Mayhem Xbox Series X|S from official retailers and trusted third-party marketplaces. Use the country, platform and service filters below to compare offers side by side and quickly spot the cheapest key that works in your region.

How do I redeem a Serious Sam: Siberian Mayhem Xbox Series X|S game key?

After you buy a Serious Sam: Siberian Mayhem Xbox Series X|S game key, you'll receive a secure digital code (often called a CD key or activation key). Redeem it through the correct platform client — for example Steam, PlayStation, Xbox or another supported launcher — and the game will be added to your library for download. Always double-check platform and region compatibility before you purchase to avoid activation issues.

About Serious Sam: Siberian Mayhem Xbox Series X|S

Game details

Publisher	Devolver Digital
Developer	Croteam, Timelock Studio
Genre	Adventure, Shooter
Game mode	single-player, multiplayer, co-op
Theme	Action
Platforms	PC (Windows), PlayStation 5, Xbox Series X\|S