
Iron Lung
A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
Offers
What are keyshops?Keyshops
Third-party resellers. Often cheaper, without official store support. Keyshop prices vs Steam →
Multipacks (5)
DLCs (1)
About Iron Lung
FEATURES
- Experimental minimalist gameplay, where your senses are limited and anything could be lurking around you
- Glimpse your surroundings through the lens of a grainy still camera and navigate using an incomplete satellite map and proximity sensors
- Horror based around building dread and paranoia
- Original soundtrack inspired by the work of Aubrey Hodges (Doom 64)
- A short experience intended to be finished in under an hour

THE GAMEPLAY
Set entirely within a claustrophobic one-man submarine nicknamed the "Iron Lung," you must blindly navigate an ocean of blood to take photographs of key locations, and hope whatever lives below doesn't find you.There is only a single porthole on the sub, and it needs to be closed due to depth pressure, so you have to navigate purely via an incomplete map, proximity sensors, sound, and a primitive external camera which can be used to take the pictures you need to complete your mission, or to get a grainy low resolution visual of what's happening outside.
Success will require resourcefulness and patience.

THE STORY
Decades ago, every known star and habitable planet mysteriously vanished, along with whatever and whoever happened to be on them, leaving behind an empty universe of asteroids and lifeless moons where the only remnants of humanity are those who were on space stations or starships at the time. With supplies gradually dwindling and infrastructure falling into disrepair, the survivors have spent the subsequent years frantically searching for any trace of remaining natural resources. Up until now they have been unsuccessful...Then, a mysterious anomaly known as a Blood Ocean (which is exactly what it sounds like) was discovered on an otherwise barren moon. It's not the first Blood Ocean found since the vanishing, but initial scans show a collection of potentially useful anomalous locations in a deep undersea (underblood?) trench that require further investigation.
And you're the unlucky sap who gets to investigate, in an aging submarine cobbled together from rusty space station parts.
Find your way to the marked locations, photograph whatever you find there, and try to finish before the sub collapses around you... or you're discovered by whatever lurks in the blood...
Game details
Game details
Age ratings
Game modes
Languages
Features
Iron Lung price history
Lowest tracked price: €0.40 (Jul 17, 2026) · current best: €0.76 across 5 stores.
Iron Lung player count & reviews
88% positive reviews in the last 30 days (92% all-time) · ~3 new reviews/day · 29 peak players in the last 30 days.
Iron Lung — frequently asked questions
Where can I buy Iron Lung at the cheapest price?
Right now the cheapest offer for Iron Lung is €0.76 at K4G. KingsPrice compares 6 offers from 5 stores — official stores and keyshops — and refreshes prices throughout the day.
What is the lowest price Iron Lung has ever been?
The lowest price KingsPrice has tracked for Iron Lung is €0.40 (recorded on Jul 17, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.
How many people play Iron Lung?
Iron Lung peaked at 29 concurrent players on Steam in the last 30 days (highest on Jul 9, 2026). The player chart on this page updates daily.
Is it safe to buy a Iron Lung Steam key from a keyshop?
Keyshops are marketplaces that resell game keys, usually below official store prices. The keyshops listed on KingsPrice deliver genuine Steam keys, but buyer protection differs from official stores — check the shop's rating and refund policy before buying. You can hide keyshop offers at any time with the keyshops toggle. Keyshop prices vs Steam →
How can I get Iron Lung at a discount?
Create a free price alert on this page and KingsPrice will email you when Iron Lung 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.
System requirements
Minimum
- Requires a 64-bit processor and operating system
- OS *: Windows 7/8/9/10
- Processor: Any made within the last decade
- Memory: 1 MB RAM
- Graphics: Any made within the last decade
- Storage: 200 MB available space
- Sound Card: Any
- Additional Notes: You can run this
Recommended
- Requires a 64-bit processor and operating system
















