Iron Lung — Is It Worth Playing?
A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.

Official trailer & screenshots via Steam
About Iron Lung
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 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...
Description via Steam.
Key Stats
Should You Play Iron Lung?
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 THE GAMEP…
Iron Lung is single-player on Steam and runs on Windows. It's on our trending radar right now.
Opens the official Steam store page.
System Requirements & Platforms
View PC requirements & supported platforms
Platforms: Windows
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
Iron Lung — Frequently Asked Questions
- When does Iron Lung release?
- Iron Lung released on Mar 9, 2022 and is available now on Steam.
- What kind of game is Iron Lung?
- Iron Lung is a Horror game. A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
- Is Iron Lung multiplayer or co-op?
- No — Iron Lung is listed as single-player only on Steam.
- Is Iron Lung on Steam Deck or consoles?
- Iron Lung runs on Windows via Steam; Steam Deck compatibility has not been confirmed. No console release has been confirmed.
- How much does Iron Lung cost?
- Iron Lung is priced at $3.99 on Steam.
- What are Iron Lung's system requirements?
- The developer has not published detailed system requirements yet.
- Is Iron Lung worth playing in 2026?
- Yes — Iron Lung holds 92% positive across 8,483 Steam reviews, making it an easy recommendation in 2026.
- Who made Iron Lung?
- Iron Lung is developed by David Szymanski.
- What games is Iron Lung similar to?
- Iron Lung sits alongside Horror games such as Shift At Midnight, Buckshot Roulette, Backrooms: Escape Together.
- What platforms is Iron Lung on?
- Iron Lung is available on Windows.
Data & media via Steam · updated 2026-07-17 · all trending games →