Zero Sievert
Offers
Trailers & screenshots
1 / 10



About Zero Sievert
ZERO Sievert is a survival game set in a fictional, post-apocalyptic version of Eastern Europe. You venture into radioactive areas to scavenge equipment, fight bandits and wildlife, and make it back alive. Your base is a bunker with traders, weapon-modification stations and areas you can make your own, offering progression between excursions.
Explore the wasteland
The game has six maps across six biomes. Their procedurally generated layouts, hiding spots, loot locations and weather change from one journey to the next, so you must adapt and learn each map’s secrets. You begin with little more than a gun and a bottle of water. A tutorial introduces the skills, knowledge and weapons needed to survive.
Weapons and progression
You can choose how to hunt from over 50 guns and 150 weapon modifications, combining mods to suit your playstyle or focus on weapon stats. Experience lets you improve weapon types, increasing attributes such as reload speed, damage and movement speed, and unlocking weapon-specific perks. You can also gain hunter perks to help you navigate the wasteland, handle challenges and take on more enemies.
Factions and quests
In Zakov, you can choose between The Green Army, which works to maintain law and order, and the Crimson Corporation, a global pharmaceutical and technology giant. You earn reputation with your chosen faction, unlock its quests and collect special high-tier loot. Multiple questlines and conversations with characters reveal information and lore about the world left behind.
Loot and crafting
More than 100 different items can be looted, used to craft new items, put toward upgrading your base or traded. The Steam Workshop also offers mods that add weapons, factions, NPCs, quests, languages and other changes to the game.
Frequently asked questions
The best price for Zero Sievert is $9.58 at Difmark. That is 52% less than on Steam, where it costs $19.99. 20 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Zero Sievert stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Zero Sievert are: Windows 10, Intel Core 2 Duo E8400, 4 GB RAM, 300 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Zero Sievert is a single-player game.
Yes. Valve rates Zero Sievert as Verified on the Steam Deck: it runs well out of the box.
Buy Zero Sievert 52% cheaper than on Steam.
Zero Sievert is available for 52% less in shops such as Difmark, Kinguin, or Driffle.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











