Buy Serious Sam Siberian Mayhem Steam Key
Serious Sam Siberian Mayhem Steam Key: compare prices (October 2026)
A Serious Sam Siberian Mayhem Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €4.94 (€5.76 with fees, -70%) at K4G, 70% below the €19.50 (no fees) Steam price · 13 verified stores, 21 offers in stock · Updated 04h 39min ago.
Prices change depending on the selected payment method.
Final prices with fees
How much does Serious Sam Siberian Mayhem for PC cost right now?
Serious Sam Siberian Mayhem for PC starts at €4.94 (€5.76 with fees) at K4G, a Steam key, which is 70% under the €19.50 (no fees) it costs on the official store.
That €4.94 (€5.76 with fees) already includes the GCDK14DEAL coupon, so apply it at checkout or the store will show you a higher price.
With 21 offers across 13 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.
Steam Key
Steam Gift
Is it worth buying the Steam Key for Serious Sam Siberian Mayhem now or waiting?
That €4.94 (€5.76 with fees) key is at its usual price: no bargain, no spike.
- Those €4.94 (€5.76 with fees) are 33% below what it usually costs, measured on the store price.
- 13 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
- Not counting today, 375 days out of the 1,107 days on record were this cheap or cheaper; the lowest it has ever cost is €3.35.
Worked out from 3,071 daily records of the Steam Key for Serious Sam Siberian Mayhem across 20 stores. See the full price history.
The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.
Which Serious Sam Siberian Mayhem format should you buy?
By format: Steam Key from €4.94 (€5.76 with fees) and Steam Gift from €15.77 (€17.37 with fees).
Can you activate Serious Sam Siberian Mayhem in US?
17 of the 21 offers work on US — the Global ones plus the ones issued for your own region.
Is Serious Sam Siberian Mayhem worth it?
38 outlets reviewed it and it averages 73 out of 100, with 56% recommending it.
Most common FAQs when buying Serious Sam Siberian Mayhem for PC in digital format:
Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.
If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.
In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.
Need more help? Use our FAQs.
Serious Sam Siberian Mayhem
Is it worth it?
- 73/100Critics' average scoreOpenCritic · Fair
- 56%Critics recommend it38 critic reviews
- 92%Steam reviewsVery Positive · 4,784 reviews
Can I run it?
- RTX 306075–89 FPS
- RTX 3070125–146 FPS
- RTX 3080168–201 FPS
- RTX 3080 Ti181–216 FPS
What the press says
It’s a game that relishes in its proclivity for ridiculous violence and over-the-top set pieces, and considering you can mostly ignore the superfluous additions, what... Read more
Siberian Mayhem recalls Sam's glory days in the best way, providing a bombastic adventure that doesn't overstay its welcome. Read more
Serious Sam Siberian Mayhem distills the DNA of the series down into a series of long, brutally chaotic levels backed by an all-time peak of... Read more
Serious Sam: Siberian Mayhem is a standalone expansion that takes Sam Stone to the icy land of Siberia. The expansion introduces new weapons, enemies, and... Read more
It’s hard to pinpoint why this expansion just isn’t included into Serious Sam 4 as DLC, because it misses out on varied and complex modding... Read more
Siberian Mayhem keeps the experience fresh while sticking to the roots of what makes Serious Sam so great: ruthless alien-killing action with plenty of puns... Read more
A lean and mean addition to the Serious Sam family that experiments with a few new toys, and offers more of the same Serious Sam... Read more
Serious Sam: Siberian Mayhem is an excellent entry in the long-running series. Read more
The video game equivalent of being picked up in a 2000 F-250 by a guy blasting Skynyrd and yelling HELL YEAH BROTHER at everything you... Read more
Serious Sam: Sliberian Mayhem offers the similar carnage and heart-pounding action of its predecessors, with some cool new weapons to boot. Read more
Serious Sam: Siberian Mayhem adds directly to Serious Sam 4 without changing much. Despite being a standalone expansion, players should go through Serious Sam 4... Read more
Inevitably, Serious Sam: Siberian Mayhem doesn’t do much to attract newcomers to the series. It is what it is: an expansion designed to offer Serious... Read more
Serious Sam: Siberian Mayhem is more of the chaos, mayhem and classic one-liners, but some recurring issues from Serious Sam 4 reared their heads marring... Read more
Even as Siberian Mayhem quickly descends into chaos and sheer pandemonium, there’s always a final word to be had, or one last gunshot to haphazardly... Read more
Siberian Mayhem is an entertaining little jaunt for fans of Serious Sam 4. It’s a quick five levels to run through, and I wish it... Read more
Full of secrets, desolate and still somewhat gorgeous – Siberia might be the home of bloodshed you were missing in Serious Sam 4. All for... Read more
Siberian Mayhem improves on Serious Sam 4 in several areas, except where it mattered most: performance. The expansion's poor framerates and tech issues are a... Read more
Serious Sam - Siberian Mayhem is an insanely driving and cool action game that ends exactly when you already want to take a break from... Read more
If you have somehow enjoyed the base Serious Sam 4, you will most certainly enjoy Siberian Mayhem. It’s pretty much the same damn game, just... Read more
How much fun you’ll have in the bleak, frozen landscape depends on how much you are still smitten with mid-90s first-person shooter mechanics. Serious Sam... Read more
Ammunition-fueled ATV trips, Mech piloting sequences and taking down squid-operated choppers levels of insane action can’t save Serious Sam: Siberian Mayhem. No matter how varied... Read more
Serious Sam: Siberian Mayhem may have some decent gameplay, but the numerous technical issues really bring down the experience – massive frame drops, microstutters, and... Read more
A new Serious Sam game! And guess what? You get exactly what you'd expect! Siberian Mayhem is a mindless fragfest that does not overstay its... Read more
Serious Sam: Siberian Mayhem is another action-packed oldschool shooter with tons of enemies and interesting weaponry. Although the gameplay is good, minor bugs and design... Read more
Even though Serious Sam: Siberian Mayhem came out of nowhere, it offers exactly what we expect from the series nowadays. Shame about the hardware optimization... Read more
Serious Sam: Siberian Mayhem is a typical example of a shooter that is not for everyone. Read more
Serious Sam: Siberian Mayhem delivers what you'd expect from a quality DLC. It offers plenty of content and fun and addresses some of the original's... Read more
About the game
* languages with full audio
Requirements
- Requires a 64-bit processor and operating system
- Windows 10 64-bit
- 4-core CPU @ 2.5 GHz
- 8 GB RAM
- nVidia GeForce 780/970/1050 or AMD Radeon 7950/280/470 (3 GB VRAM)
- Version 11
- 25 GB available space
- Additional Notes: Requirements are based on 720p rendering resolution at 30 FPS
- Requires a 64-bit processor and operating system
- Windows 10 64-bit (1909)
- 8-core CPU @ 3.3 GHz
- 16 GB RAM
- nVidia GeForce 1080/2060 or AMD Radeon Vega64/5700 (8 GB VRAM)
- Version 11
- 25 GB available space
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