Serious Sam: Siberian Mayhem
Action, Adventure — Single-player, Multi-player, Co-op, Online Co-op
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.
- Instant GamingGlobalCHEAPEST€5.99
€19.50 - KinguinGlobal€6.04
€19.50 - LoadedGlobal€6.09
€19.50 - GamesealEurope€6.21
€19.50 - GamesPlanet US€8.92
€19.50 - Fanatical€9.99
€19.50 - GamesPlanet DE€9.99
€19.50 - GamesPlanet FR€9.99
€19.50 - GamesPlanet UK€10.03
€19.50 - Steam€19.50
- Humble Store€19.99
Tap a store to go and buy it. Green = cheapest today. % = discount on the platform's official price (Steam, Epic…).
Price history
Wait: it was cheaper recently
CheapestOfficial price: €19.50
- Lowest price
- €4.87
- 7 Oct 26 · Steam
- Average price
- €14.29
- 90 d
- Current price
- €5.99
Cheapest price per day for GeForce NOW-compatible keys. Before 13 Oct 2026 only official stores are included (IsThereAnyDeal history); resellers since then.