ZERO Sievert

ZERO Sievert is a top-down extraction shooter set in a post-apocalyptic Eastern Europe and inspired by Escape from Tarkov, STALKER, and the genre's other heavy-hitters. You operate out of an underground bunker base — traders, modding stations, customisable living quarters — and run raids into the wasteland to scavenge, fight, and extract with whatever you find.

Six procedurally generated biomes vary loot, hiding spots, weather, and layout from run to run. Bandit factions, irradiated wildlife mutated by the fallout, and rival hunters all populate the maps. Death loses what you carried; extraction is the only way to keep your loot.

The weapon system is detailed. 50+ unique guns combined with 150+ mods produce a deep customisation surface. A weapon skill tree levels per weapon type, granting reload speed, damage, and perks specific to each. Hunter perks layer on top of that to shape your broader playstyle.

Two factions — The Green Army (law and order) and Crimson Corporation (pharma-tech megacorp) — let you build reputation toward unique quests and higher-tier loot. 100+ items to loot for crafting, base upgrades, and trade. Steam Workshop mod support extends the game with new weapons, factions, NPCs, quests, and localisations from the active community.