We Love It's Guide to…
As Sam Stone hunts General Brand across Siberia, blast alien hordes, explore varied levels, and uncover hidden secrets.
Released 25 Jan 2022
Battle Alien Hordes
Explore Siberian Levels
Uncover Classic-Level Secrets
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.
Developed by Croteam, Timelock Studio · Published by Devolver Digital









Sam Stone travels through Siberia in pursuit of General Brand, fighting the alien creatures of Mental’s Horde across five levels. The standalone campaign moves through settings including Arctic coasts, forests, villages, and a ghost town.
Combat centers on fast first-person shooting against large groups of enemies. Sam can use an arsenal of weapons, including new additions such as the AK and Perun crossbow, alongside gadgets and vehicles.
Levels also offer optional side missions, secrets, and hidden areas, with side missions revealing additional stories. The game includes co-op and survival modes; reviews also describe unlockable perks and New Game+.
Many supplied reviewers enjoy the fast, large-scale combat and satisfying gunplay, along with the varied levels, hidden secrets, and Siberian setting. Some also appreciate the encounter pacing and level design compared with Serious Sam 4. Reactions are not unanimous: campaign length, performance, and the simple story draw criticism from some players.
| Platforms | Windows |
|---|---|
| Achievements | 51 |
| Age ratings |
|
| Controller support | Xbox |
| Controller required | No |
| DLC / extras | 1 listed on Steam |
| Content notices |
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| Metacritic | 70/100 View on Metacritic |
| Website | Official website |
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