Drafted with AI from our own data; passed automated quality checks and spot-checked by the editor
About the Game
ZERO Sievert is a tense top-down extraction shooter set in a procedurally generated post-apocalyptic wasteland.
ZERO Sievert is a top-down extraction shooter developed by CABO Studio and published by Modern Wolf, filed under action, adventure, and indie. The core loop is simple to describe and hard to master. You head out from your bunker into the wasteland, scavenge gear, deal with bandits and wildlife affected by the fallout, and try to make it back alive with your loot. Your bunker is the home base, with traders, modding stations, and areas to build your own giving you a reason to keep coming back between runs.
The setting is an atmospheric fictional post-apocalyptic Eastern Europe, spread across six biomes. Once you leave the bunker, the situation becomes far less secure, and you start with little more than a gun and a bottle of water, so every item you recover matters. The store description stresses that the maps are procedurally generated, so hiding spots, loot locations, weather, and layouts change from run to run. Learning each map's secrets is part of getting in, getting out, and getting better.
What stands out is the depth of customization and progression. The store page highlights more than 50 unique guns and 150 mods that can be combined into a weapon that fits your playstyle. A Weapon Skill System lets you level up individual weapon types for better stats and weapon-specific perks, while your hunter gains perks for navigating the wasteland. Factions add another layer, since you can side with The Green Army or the Crimson Corporation, earn reputation, and pursue faction quests. A tutorial helps newcomers learn the basics, and the game is designed for single-player.
Feature Highlights
- Procedurally generated maps across six biomes change hiding spots, loot locations, weather, and layouts with every run.
- Over 50 unique guns and 150 mods can be combined to build a weapon that matches your playstyle.
- The Weapon Skill System lets you level up individual weapon types for better reload speed, damage, and movement speed.
- Two factions, The Green Army and the Crimson Corporation, offer reputation, unique faction quests, and high-tier loot.
- Full controller support, including DUALSHOCK and DualSense compatibility, makes it playable on a gamepad.
- A tutorial walks new players through the basics, and Steam Achievements, Steam Cloud, and Steam Workshop support are included.
Who It Is (and Is Not) For
Recommended For
Fans of extraction shooters will feel at home with tense trips into hostile areas where getting back alive is the real goal. Players who enjoy tinkering with weapons will appreciate the large number of guns and mods and the skill progression that carries across runs.
Not Recommended For
Players who want a relaxed, story-first adventure may find the constant survival pressure frustrating. Anyone who needs Traditional Chinese text should look elsewhere, since the store does not list that language.
What the Steam Reviews Say
ZERO Sievert carries a Steam review label of Very Positive (極度好評), with 85% of its reviews positive. That is a strong result for a game with tens of thousands of reviews, and it suggests the large majority of players who reviewed it were satisfied.
Steam's labels weigh both the positive percentage and the number of reviews, so a score built on a volume this large is fairly reliable. Smaller titles with only a handful of reviews can swing sharply, but here the sample is big enough for the rating to be a meaningful signal. Reviews still reflect personal taste, and a punishing extraction shooter will not suit everyone, so read the recent feedback alongside the label.
Price History & Historical Low
Show price changes as a table
| Date | Price | Discount |
|---|---|---|
| 2026-10-30 | NT$328 | — |
| 2026-08-28 | NT$328 | — |
| 2026-08-14 | NT$196 | -40% |
All prices here are Taiwan Steam store prices in NT$. ZERO Sievert currently sells for NT$ 328, which is also its regular price, so there is no active discount at the moment. Our records show it has been discounted often, with a deepest cut of 40% recorded.
The lowest paid price we recorded is NT$ 196, and it appeared on our earliest record, from mid-August 2026. The game has never been free to keep in our records. Our price record is still short, so this verdict is tentative.
Whether now is a good time depends on your patience. At NT$ 328 you are paying the highest price we have logged, while waiting for a sale could bring it down toward the NT$ 196 low. If you want the game now, the full price is a reasonable choice given the strong reviews; if you can wait, a wishlist and sale alert is the sensible route.
Analysis written 10/27/2026 from our recorded prices; the chart above is live. Taiwan-region Steam prices.
How to Buy
- ZERO Sievert is not free right now, so you will need to purchase it from its Steam store page at the current price of NT$ 328.
- If you prefer to wait, add the game to your wishlist from its Steam store page.
- Turn on Steam's wishlist sale notifications so you hear about discounts as soon as they start.
- Check back on this page for the price trend, since discounts have appeared often in our records.
- Before buying, confirm the price and region on the official Steam store page.
Things to Know
Traditional Chinese is not among the supported languages, but the store lists Simplified Chinese and English along with several other languages. The adult content flag is set on this listing, so it may not suit younger players or anyone who prefers to avoid mature content. The prices shown are Taiwan-region Steam prices and may differ in other regions. Free and discount promotions can end at any time, so check the official Steam page before you buy.
