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The “Domain” exists as a mass of cold concrete, twisted monsters, and chaotic anomalies. You are an “Agent” sent to ensure it does not reach “Terminal Mass”. Complete missions. Upgrade your weaponry. Access deeper and darker sectors of the Domain. Will you defeat the horrors that lie at its core?
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
Tracked since Jul 7, 2026.
Steam Train Fest starts Jul 20, 2026
Official stores with direct support.
Try this game before buying.
A unique blend of fps action and survival thriller in a dystopian, analogue horror-scape
An oppressive atmosphere of isolation in a treacherous environment
Complete missions to earn new upgrades and unlock deeper sectors of the Domain
Track down the three mechanical horrors to undo the Domain
Complete missions to progress through the game
Destroy structures to shift the Domain
Hunt down Monsters to cull their population
Recover Blueprints to unlock new weapons
Return to the “HUB” after a successful run
More than 16 Weapons from pistols to rifles to double sawed-off shotguns
Relics to purchase during a run, giving you temporary improvements until the end of the run
Navigate through 3 distinct sectors. Defeat the mechanical horror of each sector to unlock the next. Extract their organs to undo the Domain
The Guts
The Pipeworks
The Belly of the Beast
Right now the cheapest offer for Terminal Mass is PLN 10.00 at Steam. KingsPrice compares 1 offers from 1 stores — official stores and keyshops — and refreshes prices throughout the day.
The lowest price KingsPrice has tracked for Terminal Mass is PLN 8.00 (recorded on Jul 7, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
Create a free price alert on this page and KingsPrice will email you when Terminal Mass drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
