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This 2022 adventure game puts players in a claustrophobic submarine exploring a blood ocean. With 9,766 Steam reviews at 92% positive, it demonstrates strong player reception. David Szymanski self-published this title.
Overview
Iron Lung is a 2022 Adventure game developed by David Szymanski and published by David Szymanski. On Steam it has gathered 10,767 player reviews, 92% of them positive, which counts as a very positive reception among indie titles in the Adventure category. The game is available on windows, and launched at $8. The pairing of developer David Szymanski with publisher David Szymanski is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Adventure projects reach the market. indielist's white-box model estimates its lifetime sales at roughly 420,000 to 980,000 units, with the full Boxleiter factor breakdown shown on this page rather than a single black-box figure. Within indielist's catalog of indie games mapped to their studios, publishers, and funding, Iron Lung can be compared against similar Adventure titles and benchmarked on review counts and estimated sales.
Reviews
10,767
Positive
92%
Steam appid
1846170
Engine
n/a
Sales estimate
vv1.0420K to 980K
units (median: 700K)
≈ $1.9M to $4.5M net revenue (Steam cut + refunds + regional discount applied)
indielist estimates lifetime unit sales for Iron Lung at roughly 420,000 to 980,000 copies, with a median around 700,000, derived from its 10,767 Steam reviews using a multi-factor Boxleiter model (version v1.0). That median maps to approximately $3.2M in net revenue after Steam's 30% cut, regional pricing, and refunds. Unlike black-box trackers, the full calculation is shown on this page: a base review-to-sales multiplier is adjusted for release year, launch price, review sentiment, studio size, and genre, and every adjustment is listed so developers, publishers, and investors can audit exactly how the figure was reached. The range itself reflects genuine uncertainty — review-to-sales ratios vary widely between games — so indielist publishes a low, median, and high band rather than a false-precision single number, and treats free-to-play, heavily discounted, and bundle-distributed titles as having wider error margins still.
Price history
90d · low $5.32Over the last 90 days the price ranged from $5.32 to $7.99, averaging $7.71 across 2 discount windows, with a historical low of $5.32 on 2026-04-09.
Synthetic series for demo. Real ITAD price history loads after Day 3 ingest.
Where to buy
Affiliate disclosureLive prices from public feeds, cheapest first. Some are affiliate links — we may earn a commission at no extra cost to you. Learn more.
Platforms
windows
Tags
HorrorAtmosphericPsychological HorrorSubmarineUnderwaterShortIndiePixel GraphicsMinimalistAdventureFirst-PersonSci-fiAbstract3DWalking SimulatorExplorationDarkMysteryDystopian Surreal
Frequently asked questions
- How many copies has Iron Lung sold?
- indielist estimates Iron Lung has sold between 419,913 and 979,797 units (median 699,855), derived from its 10,767 Steam reviews with the white-box Boxleiter vv1.0 method. The full breakdown is shown on the page.
- Who developed Iron Lung?
- Iron Lung was developed by David Szymanski and published by David Szymanski.
- When was Iron Lung released?
- Iron Lung was released in 2022.
- How many reviews does Iron Lung have on Steam?
- Iron Lung has 10,767 Steam reviews, of which 92% are positive.
Frequently asked questions
- How many copies has Iron Lung sold?
- indielist estimates Iron Lung has sold between 419,913 and 979,797 units (median 699,855), derived from its 10,767 Steam reviews with the white-box Boxleiter vv1.0 method. The full breakdown is shown on the page.
- Who developed Iron Lung?
- Iron Lung was developed by David Szymanski and published by David Szymanski.
- When was Iron Lung released?
- Iron Lung was released in 2022.
- How many reviews does Iron Lung have on Steam?
- Iron Lung has 10,767 Steam reviews, of which 92% are positive.
Ecosystem
Players looking for games like Iron Lung can compare it on indielist against semantically similar Adventure titles such as Subnautica, Escape the Backrooms, ranked by shared tags and genre rather than by ad spend. On the developer side, David Szymanski's other releases and David Szymanski's wider catalog are one click away, letting developers benchmark where Iron Lung sits among a studio's body of work and how its publisher's portfolio performs. Because indielist maps studios, publishers, games, and funding into one connected graph, the same Iron Lung page serves three audiences at once: players hunting their next Adventure game, developers studying how comparable projects were positioned and what they sold, and investors tracing which teams and labels are active in the space. A machine-readable markdown mirror of this page is published at the same path with a .md suffix for AI assistants, and its review, price, and sales-estimate figures are refreshed on a schedule rather than frozen at launch.
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