Iron Lung

Iron Lung

David Szymanski · 2022 · Horror, Atmospheric, Psychological Horror, Submarine, Underwater

PC
Very Positive92% · 9,97519playing now
Best price 59 Good deal
$1.01-82%
lowest tracked $0.62
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Steam
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Standard Edition · Steam
-50%
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$7.99
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GOG
Standard Edition · DRM-Free
-50%
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$7.99
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Fanatical
Fanatical
Standard Edition · Steam
$5.99
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Eneba
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Standard Edition · Steam
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Loaded
Loaded
Standard Edition · Steam
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$1.59
$8.99
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Screenshots

About Iron Lung

✦ AI summary

Pilot a decrepit one-man submarine through a blood ocean, navigating by incomplete maps and grainy camera feeds while photographing mysterious locations and avoiding whatever hunts in the darkness below. This minimalist horror game builds dread through sensory deprivation and paranoia, delivering a tense atmospheric experience designed to be completed in under an hour.

Iron Lung is a short dread-driven submarine horror game from the developer of DUSK, The Moon Sliver, and Squirrel Stapler.

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

https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1846170/extras/StorePageImage2.png

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.

https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1846170/extras/StorePageImage.png

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...

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jul 17, 2026
Pretty disappointed after hearing all the hype for this game, finished it in under an hour and it was not good at all.
Recommended Jul 17, 2026
I went in to watch the movie a while back and finally wanted to play this. All i can say is Markiplier did an excellent job with the adaptation! 10/10
Recommended Jul 17, 2026
Nice concept, but a bit boring. Theres not enough anomalies compared to the time you spend checking if your submarine is where it needs to be on a coordinated map. I would still say that its a good game when it is that cheap
Recommended Jul 16, 2026
Honestly slapped
Not recommended Jul 16, 2026
must be easy to make a game like this, nothing happens, just sounds... must be easy to make a film of this, bias opinions in the dark... what horror? the giant wall of green text, ahhhhhhhh.
Recommended Jul 15, 2026
I am Markiplier

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