Serious Sam: Siberian Mayhem
Cheapest right now: $9.99 USD at GOG (50% off). 5 stores compared, checked 2 Nov 2026.
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.
Platforms: Windows
Steam Deck: Playable. Valve rates it as working on Steam Deck, but it may need some extra effort to set up or to use.
| Store | Price | Discount |
|---|---|---|
| GOG | $9.99 | 50% |
| Fanatical | $11.20 | 50% |
| Gamesplanet | $11.20 | 50% |
| Steam | $19.99 | — |
| Humble Store | $19.99 | — |
Is it a good deal right now?
$9.99 USD at GOG is 50% off, a deep discount. We have no record low for Serious Sam: Siberian Mayhem to compare it with. The regular price is $19.99, so $9.99 saves $10.00. The next cheapest store is Fanatical at $11.20, $1.21 more.
Price history
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Screenshots
System requirements
Windows
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
As listed on the game's Steam page.
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