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ZERO Sievert

ZERO Sievert

CABO Studio · released Oct 22, 2024

ActionAdventureIndiePC

Now with over 600,000 copies sold, ZERO Sievert is a tense top-down extraction shooter that challenges you to scavenge a procedurally-generated wasteland, loot gear, and explore what’s left of a devastated world. When the odds are stacked against you, you’ll need to do more than just survive...

Steam page ↗OpenCritic ↗Metacritic 81 · users 6.9 ↗
79
VGC Score
■Stablehigh confidence

anchored at patch: “Performance Hotfix” (12d ago)

76%
At launch
85%
Steam all-time
81%
Press
67%
Player sentiment
88%
Recent sentiment

Screenshots & trailers

Review sentiment over time

Weekly positive-review rate (green) and review volume (bars). Dashed lines mark significant patches; the amber line is the start of the current scoring window. Hover the dots to see what drove a dip or a jump.

How this score was computed

The VGC Score is a weighted blend on a press-comparable 0-100 quality scale. Steam approval rates are first calibrated (95% positive on Steam ≈ 89.5 quality, since Steam approval skews high). Press and tracked creator reviews each count ~2x a player review and share one cap against player evidence (creator buy/skip calls pool into an approval rate, calibrated like Steam approval); all-time sentiment is capped and halved (it's context, not verdict); reviews of the current build carry the most weight when a fresh patch anchors the window; and a 'typical game' prior keeps small samples from pegging the scale. Because press reviews and Metacritic user aggregates describe the launch build, their weight decays as the game ages (3-year half-life after a 1-year grace). That's how a game that launched rough can outgrow its old reception once updates win players over. Reviews under 2h playtime (the refund window), non-Steam activations, and free copies are downweighted.

ComponentPositiveQuality (0-100)Weight (pseudo-reviews)
Press reviews (OpenCritic)–8111
All-time Steam reviews85%781000
Metacritic user ratings––0
Post-patch Steam reviews (trust-weighted)88%81330
Calibration prior (typical game)–7250

Scoring window: since the last significant patch (Aug 20, 2026) · 175 reviews sampled · 330 total reviews in window · weighted 127.4 up / 18.1 down · computed 18m ago · full methodology →

Press & Creators reviews (9)

Individual verdicts from outlets we track: scored reviews first, most trusted outlets first among them. The small badge is each outlet's trust score: how well its scoring history aligns with players.

  • 80
    Gaming ProfessorsGaming Professors
    trust 76Oct 9, 2024

    “Zero Sievert is an excellent game that will draw you in and get your heart racing with excitement and adrenaline. The setting in post-apocalyptic Eastern Europe following a nuclear power plant explosion is put to good use, and the pixel art style gives this top-down RPG shooter a unique flair. It’s truly an impressive title that will keep you hooked. With a wide variety of real-world weapons that you can customize, plus a vast array of resources, materials, and gear, you’re guaranteed never to get bored. Enemies won’t give you anything for free, and every time you survive a hunting trip, it’s an achievement in itself. Zero Sievert definitely has great potential, and if you enjoy this style, love the atmosphere of the S.T.A.L.K.E.R. series, and appreciate the gritty mechanics of Escape from Tarkov in a 2D pixel art style, this game will undoubtedly become a major time sink for you.”

    read full review ↗
  • 75
    SECTOR.skSECTOR.sk
    trust 65Nov 18, 2024

    “A catchy extraction shooter from a post-apocalyptic environment successfully deceives with its appearance. Behind the cute pixel art is a decent game challenge and a ruthless world.”

    read full review ↗
  • 85
    PC GamerPC Gamer
    trust 63Oct 25, 2024

    “A tense and taxing but wonderfully engaging hybrid of singleplayer roguelike and extraction shooter. ”

    read full review ↗
  • 80
    CrazyGameCommunity.itCrazyGameCommunity.it
    trust 62Nov 3, 2024

    “ZERO Sievert is a brilliant game that reinterprets the extraction shooter genre in an original way, but also more detailed in some aspects than the competition.”

    read full review ↗
  • 70
    Movies Games and TechMovies Games and Tech
    trust 56Apr 10, 2023

    “ZERO Sievert is an enjoyable game with its deep world-building, fun gameplay, and great presentation. However, it struggles with some aspects of its presentation and its teaching tools. Although, this game is still in early access and might have changes in the future that fix these problems. Overall, ZERO Sievert is still a very fun time. If you are a fan of the Survival genre of games I recommend giving it a go.”

    read full review ↗
  • 90
    ShacknewsShacknews
    trust 53Oct 23, 2024

    “Zero Sievert might use a lot of familiar genre descriptors, such as roguelike and extraction shooter, and it might not do a whole lot different from other, similar games that came before. However, everything it does, it does just right. It rewards you enough to make the steep challenge worth putting up with. It pushes you to explore and experiment by making both goals feel achievable with the right plan and a bit of luck, and eventually, it gives you the tools to make some fantastically detailed weapon builds and take on even bigger challenges with bigger rewards on offer. It's all recognizable, sure, but when Zero Sievert is this fun, innovation doesn't really matter.”

    read full review ↗
  • 75
    The Games MachineThe Games Machine
    trust 51Oct 29, 2024

    “In its attempt to mix STALKER and Escape from Tarkov, ZERO Sievert does a good job overall. Be careful, though, because this is not a game where shooting relaxation is the priority: you have to plan a little, you have to carefully evaluate when caution is the wisest choice, and you have to expect that sometimes your character will not return home. And yes, sometimes this game setting can be frustrating. Other times, however, there is the satisfaction of having risked a lot and still managed to come home safe.”

    read full review ↗
  • 85
    God is a GeekGod is a Geek
    trust 49Oct 30, 2024

    “Zero Sievert is tough, but it offers a satisfying experience that teaches you upon every death, giving you a reason to keep playing.”

    read full review ↗
  • 80
    Multiplayer.itMultiplayer.it
    trust 41Nov 15, 2024

    “ZERO Sievert is the perfect entry point to the extraction shooter genre thanks to the absence of multiplayer and very replayable environments.”

    read full review ↗

Patch history

  1. Performance Hotfix
    Aug 20, 2026significant · resets scoring window
  2. The Locked and Loaded Update
    Aug 13, 2026significant · resets scoring window
  3. August Update Preview
    Jul 31, 2026significant · resets scoring window
  4. The Phantom Update
    Jun 4, 2026significant · resets scoring window
  5. Hotfix for the Hotfix
    Apr 23, 2026
  6. Gamepad quality of life patch and more bug fixes!
    Apr 22, 2026significant · resets scoring window
  7. Localization Hotfix
    Apr 21, 2026
  8. Help Us Test the Next Update!
    Apr 17, 2026significant · resets scoring window
  9. ZERO Sievert - March Hotfix
    Mar 2, 2026
  10. ZERO Sievert Christmas Update Is Live!
    Dec 18, 2025significant · resets scoring window
  11. The Rotking Update: Hotfix
    Nov 14, 2025
  12. The Rotking Update
    Nov 13, 2025significant · resets scoring window
  13. The Armoury Update
    Sep 30, 2025
  14. The Shooting Range Update is LIVE - Update 1.2.19
    Aug 4, 2025significant · resets scoring window
  15. Our latest ZERO Sievert dev update is now live!
    Jul 5, 2025
  16. Hotfix 1.2.13 | Patch notes
    Jul 1, 2025
  17. Hotfix 1.2.12 | Patch notes - Steam Deck and Prologue Fixes
    Jun 30, 2025
  18. NEW UPDATE IS LIVE - The Prologue Update (1.2.4)
    Jun 26, 2025significant · resets scoring window
  19. MORE MOD TOOLS UPDATES! - Patch 1.1.15 | Patch Notes
    May 15, 2025significant · resets scoring window
  20. Hotfix 1.1.13 | Patch Notes
    May 6, 2025significant · resets scoring window
  21. MODDING & STEAM WORKSHOP - Patch 1.1.12
    Apr 22, 2025significant · resets scoring window
  22. Hotfix 1.0.17 | Patch Notes
    Feb 24, 2025
  23. ZERO Sievert | Weather Update
    Feb 12, 2025
  24. ZERO Sievert | Bunker Report
    Jan 9, 2025
  25. ZERO Sievert Holiday Event! 🎄
    Dec 9, 2024significant · resets scoring window
  26. Update 1.0.7 | Patch Notes
    Nov 19, 2024significant · resets scoring window
  27. Update 1.0.4 | Patch Notes
    Nov 5, 2024
  28. Hotfix: 1.0.2 now available
    Oct 25, 2024
  29. ZERO Sievert 1.0 OUT NOW!
    Oct 23, 2024significant · resets scoring window
  30. Important Information about 1.0
    Oct 17, 2024significant · resets scoring window
  31. Developer Update 2024 Vol.7
    Oct 14, 2024significant · resets scoring window
  32. Steam Achievements coming in 1.0
    Sep 25, 2024
  33. Hotfix: 0.52.7 now available
    Sep 3, 2024
  34. Update 0.52 | Patch Notes
    Aug 28, 2024significant · resets scoring window
  35. Developer Update 2024 Vol.6
    Aug 23, 2024significant · resets scoring window
  36. Update 0.51 | Patch Notes
    Jul 23, 2024significant · resets scoring window
  37. Developer Update 2024 Vol.5
    Jul 19, 2024significant · resets scoring window
  38. Hotfix: 0.50.3 now available
    Jul 4, 2024
  39. Hotfix: 0.50.2 now available
    Jul 2, 2024
  40. Known issue: Stash disappearing when upgrading storage
    Jun 28, 2024

…and 28 earlier patch announcements.