Serious Sam: Siberian Mayhem
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.
Offers
What are keyshops?Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Multipacks (1)
DLCs (1)
Serious Sam Series (16)
Other games from the same series.
About Serious Sam: Siberian Mayhem
Co-developed by Timelock Studio and Croteam, 'Serious Sam: Siberian Mayhem' presents an expanded look at a familiar journey full of forgotten stories, unexplored places, and Sam's trademark guns-blazing battles against Mental's Horde. Join the fight, comrade!
WELCOME TO SIBERIA
...the heart of Russia. This place is huge, cold, and so unpredictable even the alien invaders feel lost. Travel through five new levels set in a beautiful and dangerous world, from Arctic coastlines and desolate forests to abandoned villages and a chilling ghost town. Siberia is large enough for you to fight & explore for as much as you want.BEASTS OF THE APOCALYPSE
Only the strongest souls survive in Siberia, and Mental knows it well. A new set of dangerous foes and bosses join the Horde in 'Siberian Mayhem'. Including some of the most advanced and intimidating creatures you never expected to see.TEMPERED STEEL
There's only one thing that stands between Serious Sam and his enemies - a gun. Treat yourself with a deadly arsenal of new weapons, from the legendary AK to experimental 'Perun' crossbow, and more! Do you want to cause death from above or become one with 50 tons of first-class firepower? New gadgets and vehicles are locked, loaded, and ready to fulfill your most destructive dreams.AT HOME AMONG STRANGERS
When you think the journey is over and there are no more stories to tell, the universe gives you a second chance. Meet a gang of new outcasts and unexpected characters who will help Sam on his journey to Tunguska. Complete side-missions in order to uncover new chronicles these wild places uphold. And pay attention to your surroundings - the world itself can tell you something you never expected to hear.SIBERIAN MYSTERIES
The lands of Siberia are huge, desolate, and full of secrets. Useful, silly, weird, familiar... you name it. Can you find them all?Game details
Game details
Age ratings
Languages
Audio & text: English
Text only: French, Italian, German, Spanish - Spain, Japanese, Korean, Polish, Portuguese - Brazil, Russian, Simplified Chinese, Traditional Chinese, Turkish
Features
Serious Sam: Siberian Mayhem price history
Lowest tracked price: €4.87 (Jul 7, 2026) · current best: €5.89 across 6 stores.
Serious Sam: Siberian Mayhem player count & reviews
92% positive reviews in the last 30 days (92% all-time) · ~1 new reviews/day · 95 peak players in the last 30 days.
Serious Sam: Siberian Mayhem — frequently asked questions
Where can I buy Serious Sam: Siberian Mayhem at the cheapest price?
Right now the cheapest offer for Serious Sam: Siberian Mayhem is €5.89 at Loaded. KingsPrice compares 7 offers from 6 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Serious Sam: Siberian Mayhem has ever been?
The lowest price KingsPrice has tracked for Serious Sam: Siberian Mayhem is €4.87 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Serious Sam: Siberian Mayhem?
Serious Sam: Siberian Mayhem peaked at 95 concurrent players on Steam in the last 30 days (highest on Jul 12, 2026). The player chart on this page updates daily.
Is it safe to buy a Serious Sam: Siberian Mayhem Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Serious Sam: Siberian Mayhem at a discount?
Create a free price alert on this page and KingsPrice will email you when Serious Sam: Siberian Mayhem drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit
- Processor: 4-core CPU @ 2.5 GHz
- Memory: 8 GB RAM
- Graphics: nVidia GeForce 780/970/1050 or AMD Radeon 7950/280/470 (3 GB VRAM)
- DirectX: Version 11
- Storage: 25 GB available space
- Additional Notes: Requirements are based on 720p rendering resolution at 30 FPS
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit (1909)
- Processor: 8-core CPU @ 3.3 GHz
- Memory: 16 GB RAM
- Graphics: nVidia GeForce 1080/2060 or AMD Radeon Vega64/5700 (8 GB VRAM)
- DirectX: Version 11
- Storage: 25 GB available space
