Iron Lung
A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
Trailers
2Screenshots
6Very Positive
10,423 Steam reviews
Review History
| LANGUAGE | AUDIO | SUBTITLES | INTERFACE |
|---|---|---|---|
| English | Y | — | Y |

A short horror game where you pilot a tiny submarine through an ocean of blood on an alien moon.
Very Positive
10,423 Steam reviews
| LANGUAGE | AUDIO | SUBTITLES | INTERFACE |
|---|---|---|---|
| English | Y | — | Y |
This. is. AMAZING. This is a very simplistic game, matching coordinates, trying not to hit walls... but the story (I think) is GREAT. It reels you in long enough to progress through the game. You also lock in enough for when any scares do come up, they get you.
1/10 minimalist slowwwww horror game.
- unknown query
Interesting little horror game, felt really uneasy playing this at night. Great atmosphere.
acabo de ver la pelicula y inmediatamente compre el juego, simple, pero te mantiene al suspenso, lo acabas en una hora, pero es increible, vallan a apoyar a la pelicula a los cines (si les es posbile claro) 10/10 y juegazo
Like it.
Not sure why I expected more from it... Interesting concept, though.
Movie was cool too.
Markiplier
Very short, but fun! Neat concept.
what a unique idea, great game
:steamthumbsup:
Deixando essa review depois de platinar o jogo, ter assistido o filme três vezes no cinema no Brasil (duas legendado e uma dublado) e esperando uma camisa de merch chegar
A atmosfera é muito bem construída. O jogo cria uma solidão muito foda te colocando num espaço minúsculo dentro de um oceano gigantesco, te deixando à mercê com uma câmera estática indireta, sua imaginação interpretando os sons do lado de fora e o gameplay mais esquisito e fodido de navegação possível. O jogo faz muito com muito pouco, dentro do limite que ele se propõe, e isso é fantástico. O filtro da imagem da câmera é nojentasso inclusive... muito bom. [spoiler]Os sons de "respiração" nos cantos sudoeste e nordeste me deixaram desconcertado real, não precisava kkkkkk[/spoiler]
Conceito muito daora, mistério bom, dissociação perfeita do seu redor, curtinho, baratinho e muito gostoso. Já conhecia o David Szymanski do [url=https://store.steampowered.com/app/2535830/Squirrel_Stapler/] Squirrel Stapler [/url] e achei lindamente perturbado, muito bom as jogadas de terror psicológico.
Recomendo bastante!
THERE IS SOMETHING HERE, I CAN HEAR THROUGH THE WALLS!!! SEND SOMEONE, HURRY UP!!!!!
Pretty good game, overhyped as hell tho, like genuinely the most overhyped game I think I’ve ever played, pretty cool concept and I had a lot of fun because I thought I’d only been playing for 10-15 minutes but had actually played for an hour, the price increase a couple months ago was incredibly unnecessary, “more in line with other horror games and competitive pricing” is bs, other horror games aren’t as bland as this one is and this game shouldn’t be more than like 2-5 bucks for how little stuff is in this game, I played for like 50 minutes and if you really try you can get all achievements sub 1 hour, insane that out of all games that really deserve movies markiplier decided this was the one, still a really fun concept tho
A game about the bittersweet, delusional, yet motivating idea of perseverance in the face of total, undeniable dispair. I assumed that I would be able to play this game without getting too scared, knowing all the jumpscares and overall plot, yet the atmosphere was so well-crafted that I felt on edge the entire time. The feeling of anxiety and suffocation the game makes you feel elevates the experience in the way it was meant to. I can see why Markiplier fell in love with this game to the point he had to make a movie about it (which I highly recommend seeing).
I bought this on sale for $5 and feel completely ripped off.
The two sentences about the quiet apocalypse or whatever are more interesting than the entirety of the game.
The game has nothing to do with the concept presented... no lore... minimal imagery... minimal everything.
Scorn is on sale for less than this... this is worth $0.99 and that is being generous.
This "game" absolutely sucks and is only popular because of that YouTube guy.... just go watch him play it.
It's so bad I actually kind of want my $5 back.
GRIND <3
So this is more like a short horror experience that relies on sounds and a couple of jumpscares. The mechanics of going from point a to b are pretty simple and it does entertain you for an hour or so. But that's pretty much it. It's kinda meh. i recommend this to fans of the same developer only.
Peak
terrible controls
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งมเข็มในมหาสมุทร งมแม้กระทั่งวิธีการเล่น Xแนวนอน Yแนวตั้ง หรือป่าวผมมั่วจนจบ จริงๆเกมมันจบเร็วกว่านี้มากส่วนใหญ่จะหลงทางกับชนอะไรไปเรื่อยมากกว่า ผมเล่นสนุกมากพอเล่นจบก็เคว้งเลย สรุป:ให้คะแนนไม่ได้ แต่แนะนำครับมันเหมือนมาเที่ยวตั๋วเที่ยวเดียวที่เพลินๆดี
Great game and atmosphere. The game definitely feels indie, but the story is far from substandard. I also saw the movie and thought it made the world feel more alive and in-depth when revisiting the game.
genuinely a good simple slow burn game, testing your patience and the eerie undeniable feeling that despite your actions. deep down in the blood ocean, you know you'll never come back. with very limited information presented to us we learn abt this complex and scary story, left feeling alone out there. The movie was fantastic as we see Simon put into that exact same position we're in, can't get enough of it and would love to see more games and possibly a continuation but we'll see. If u liked to be spooked and pretend to be a captain this is your game,
Es más grande que yo
-♥♥♥♥♥♥♥♥♥, it's Mark!
-markiplier Iron lung
5/5 Game
mission control... errg.... i dont feel so good... pfffrrrrtttt!!! uh oh. markiplier? woah... i need to fart for more oxygin? hmm... pfffrrrt... i donht know.... myabe... *markiplieer rubs my fat belly full of farts* eerrgg ..brrrrrrap
I don't get it.
GOD
No es para todo el mundo. La tensión de este juego se basa en conducir un submarino casi a ciegas. Tienes un mapa pero no muestra tu posición. Tienes que encontrarla a ojo siguiendo el sistema de coordenadas. Si te acercas mucho a un obstáculo salta una alarma de proximidad. Si tienes cuidado, y el submarino no se rompe, no tendría por qué pasar nada malo.
Cool little game with little snippets of lore scattered throughout that are great. 9.5/10
No wonder Markiplier made a movie about it
Very interesting use of games as a medium for horror. It cool and good.
Pooped my pants a little. 9/10, would be 10/10 but no shirtless Markiplier :(
Just finished the game and WOW. This is such a simple game in terms of gameplay but it is also very unique. Visually not much happens but the claustrophobic atmosphere and the sound effects give you an image of what is happening around you that you can't get any other way. The only thing I can compare it to is to reading a book. All the visuals happen in your head rather than you seeing them but they are all the more vivid because of that in a way. The story is also simple but it is enough for what this game is. I also like how much you have to think and pay attention to what you are doing the whole time but it never really feels like something difficult, just pay attention and take your time.
The only thing i can complain about is the menu and the fact that you cant really change settings mid game, like sound volume and mouse speed but other than that brilliant.
9.9/10
Sah g vraiment pas aimé. On m'a vendu un excellent jeu d'horreur pour qu'au final ce soit bouton simulator. Je comprends vrmt pas la hype psq l'ambiance n'est pas non plus excellement réussite?? Enfin, les sfx sont bons, quelques éléments surprennent mais pour le coup j'ai pas tant ressenti la profondeur de l'océan que ça. Les seules fois où j'ai eu peur c psq jsuis un tdc et que jsavais pas me repérer dans la mer dcp jme fracassais le crane contre la roche. Un léger inconfort sur les deux dernières photos à prendre mais sans plus. C'est dommage, quelque chose de mieux aurait pu être fait avec de si bonnes mécaniques. Bordel qu'est-ce-que c'est encore plus décevant de terminer tout ça sur un jumpscare prévisible et si peu efficace. A voir si le film est mieux que boring simulator
my lungs feel like iron when playing this game, absolutely great game, ♥♥♥♥ myself while playing
awesome
Revisiting this after the movie was great :)
juegazo de terror muy corto. consejo si no entendes adonde estas mira los numeros que te da el submarino y despues los vordes del mapa y ay sabras adonde estas
i saw markiplier's boobs with my fiance. 10/10
Too many dogs, not enough frogs. :(
La pelicula todavia no esta en neuquen, dislike
only reason this is dislike is because honestly its not worth the money but dont get me wrong its a awesome game but shouldnt be 8 dollers
David, you're great the ending scared tf out of me, can't wait for the movie to come out in the UK
Wow that was pretty cool, they should make a movie about this
评分:5/5
评测:短篇微恐游戏(其实基本没啥恐怖元素)。主角操作一艘密闭的潜水艇,探索一片未知的血海,游戏过程中玩家要全程在潜艇里操作摇杆进行行动,由于处于密闭状态自然也看不到船外的场景,只能通过雷达和感觉来估算所处的位置和方向。游戏的任务是要到地图中的8个位置拍照,因此开往目标点的照片是了解潜艇外处境的唯一途径。游戏的题材还是很有意思的,玩法非常新颖,值得体验
this game is so good. game khó vlin, game cho chó chơi à, tốn thời gian vlin
The movie was so good, so I decided to try the game. The game was quite nice....not too good or too bad, just decent... so I’m going to rate it 9/10
Concept intéressant mais trop court et basique. Il aurait fallu ajouter quelques éléments de gameplay pour en faire une expérience un peu plus complète.
Le prix est beaucoup trop élevé sans promo, et reste trop élevé avec -50% au vu du temps de jeu et de la non re-jouabilité.
J'ai tendance à encourager ce type d'expérience, mais pour le prix et le côté trop basique, je ne peux pas recommander. Terminé à 100% en 1,3h.
nice and spooky. i liked more than the movie
jogo diferenciado, curti a ambientação
this is a grate game! it did take a bit to find out where i am and took me a while to get moveing. grate game do buy i do wish it was longer
[H1]A deep dive into tension, confusion, and very bad parking[/H1]
I’ve finally played this on stream after one of my good friends insisted so much after watching Markiplier’s movie, and all I’ll say is... it didn’t disappoint. Didn't go the way I expected, but it's definitely not a miss either.
To begin with, I wouldn’t call this a horror game per se. A thriller? Absolutely. A full-on tension piece? 100%. But horror? Not quite. The whole experience lives in the suspense, the unanswered questions, the lore, and that thick, uncomfortable ambiance. The concept is simple: pilot a windowless submarine using a grid map and coordinates to take 10 photos in a sea of blood. That’s it. No combat, no distractions. Just vibes and the creeping feeling that you’re not as alone as you should be. Most of your time is spent at a tiny terminal reading bits of lore, taking pictures, or worse, trying to navigate this weird environment. And yes, if you lack spatial awareness like a certain someone writing these words, this becomes its own little nightmare. Avoiding walls shouldn’t be hard, and yet here we are.
The controls are simple, the length is just right (unless you die in a very dumb way by crashing into something), and the achievements are clear and mostly follow normal completion. You can easily plan them into a first run or wrap things up in a quick half-second one. There are also basic options like sound sliders, nothing fancy but enough to do the job.
The cherry on top is the atmosphere and the lore. Honestly, I’d even recommend watching the movie first and then playing. It helps situate the universe a lot more, and you’ll appreciate the small details way more than going in blind. The tension builds slowly, and it works so well because you’re left with so many questions.
Now, the ending. I know a lot of people mention it, and yeah, it can feel a bit deceptive if you’re someone who likes a clean wrap-up. It also becomes somewhat predictable at a certain point that [spoiler]you’re not surviving this[/spoiler]. Personally, I didn’t mind since I usually care more about the journey than the destination, but I can absolutely see it being a letdown for others. Also worth mentioning: even if there’s no actual math involved, you are using a grid and estimating movement constantly. If numbers or spatial reasoning aren’t your thing (hi again), this might not be the most comfortable experience. It adds to the tension, sure, but also to the occasional frustration.
I do think it’s a tiny bit overhyped. It’s a very good game (tense, claustrophobic, confusing, sometimes even a bit rage-inducing) but not the game of the century. If you go in with more grounded expectations, it lands much better. The price can feel a bit high for the length, though it’s an easy grab on sale.
If you’re into slow-building tension and atmospheric experiences more than straight-up horror, this is a really solid pick. And if you want to see what questionable submarine navigation looks like in action, you can always check out my playthrough on [url=https://www.twitch.tv/videos/2728170056]Twitch[/url]!
[quote]For more reviews like this one, please check out [url=https://store.steampowered.com/curator/45639970-Ele%2527s-Little-Recommendation-Corner/][b]Ele's Little Recommendation Corner[/b][/url]![/quote]
[quote]For reviews covering all types of indies, recent and old, don't hesitate to drop by [url=https://store.steampowered.com/curator/32732116-IndieGems/][b]IndieGems[/b][/url]![/quote]
This game is awesome, it crafts the right amount of horror using it's atmosphere, lore, music, and gameplay. Almost everything about this game is perfect and I would recommend it to anyone.
9.5/10 game, recently watched the movie of this game last month, which is really hard to believe that an indie horror game will have a movie adaptation from one of the famous youtubers, which the story is the same as in the game but the difference is that depth on how the it feels if we are in that situation of the convict that is physically and psychologically in danger simultaneously. Really a fun game, while on sale, I would recommend buying this game on a discounted price, especially if you really wanted to understand the whole plot of the movie and the game as an experience.
Insert funny comment about Markiplier and the film
i think this is the first time a game has ever made me jump up out of my chair and yelp "OH S***!!"
good.
Everyone already knows what Iron Lung is, but for the uninitiated.
Iron Lung is a game where you pilot a submarine in a blood ocean entirely blind, you have to keep track of where you are by constantly comparing your co-oridnates to your map, it requires a level of mathematics and understanding of co-ordinates that is quite surprising and the navigation of your sub is fun and intense, I would heavily suggest making your own maps, honestly an ability to draw on the map in-game would be really nice but I just took a screenshot and used MS Paint to draw my map, tabbing in and out, it's not much of a horror game much like Markiplier's movie adaptation but it is a creeping and wonderfully ambient game, if you have a love for anything like SCUBA diving, submarines, or just the unknown of the deep then you owe it to yourself to play and watch Iron Lung.
Now I finally understand why we had to learn coordinate geometry at school
Waking up in the morning and playing my daily Iron Lung match is lowkey a bop with spotify playing. The ending made me almost throw my headphone out a window though.
Un juego simple pero eficiente, realmente te da incomodidad el aislamiento absoluto y no saber que hay por fuera del submarino.
También denle una oportunidad a la pelicula, realmente explora mucho más el lore que tiene esta historia y la actuación de Markiplier es bastante buena.
goon game
氛围不错,但内容太少了
markiplier
На мой взгляд шутеры у автора гораздо интереснее получаются, чем простенькие хорроры.
Short horror game that is still quite scary. The concept, design, atmosphere and everything is unsettling and the tension and fear builds over the course of the game. The mechanics are simple and compliment the horror well. There is a surprising amount of lore to delve into as well if you're interested in that, and of course a movie based on this game came out recently. Movie is also really good and does a good job adapting a short game into a longer movie. Overall, great game, well worth the price, highly recommend.
O RH me mandou tirar fotos num oceano de sangue dentro de um submarino. Questionei sobre a insalubridade, mas me disseram que o ambiente de trabalho era apenas 'vibrante'. O submarino não tem janelas e o RH falou para eu me virar com um radar fuleiro, me dando apenas as coordenadas dos locais das fotos. O lado bom? Não trabalho mais debaixo de sol ou chuva. O ruim? Acho que meu seguro de vida não cobre 'ser digerido por uma criatura abissal'. SUPER RECOMENDO! 10/10
I'm actually in disbelief that this game has sold as well as it has, and not only that, was even adapted to a movie. But I'm not really the target audience anyways; in general I don't really care for walking sims or games like these.
I'm recommending this game only because it's relatively inexpensive and I want to see indie devs succeed. But it's not something I probably would've bought or played had I watched a let's play or otherwise knew what to expect. It's extremely short, and in my opinion, quite boring. I also think that the very last sentence should've been withheld; the story would've been better without it.
Better sub than subway
Feels like i'm doing mathematics graph, not bad but not good so i'll vote no
i agree the concept is interesting but i feel like theres not actually much here. i understand why people like it but i would only get it on sale tbh
o
Este juego de David Szymanski es muy bueno es corto pero tiene muy buena ambientación principalmente sonora también es recomendable ver la película para expandir la historia de Iron Lung bueno obviamente este juego pertenece al universo de horror cósmico de David Szymanski asi que no le busques mucho sentido pero igual estará bueno.
unique
holy ♥♥♥♥♥♥♥ ♥♥♥♥
peak 10/10
Ahh , great game. Also movies itself too
Fun little game that has its moments, very atmospheric with a nice bit of world building. I only wish for more of the lore.
The limited visibility, creepy sounds, and simple gameplay create a strong feeling of tension of being wachted. Even though the game is short, it delivers a unique and memorable experience.
My lungs got ironed
Markiplier made me buy this
Jeśli lubisz pływać łodzią podwodną to to gra dla ciebie. Jedyne do czego moge się przyczepić to cena, bo jest kapke za wysoka moim zdaniem.
Fun, short game.
good game, good movie. my only personal issue was i did get jumpscared and nearly dropped my laptop at the end of the game.
Hello everybody, my name is Markiplier.
i am somehow amused by being trapped in a metal tube until i suffocate to death. good stuff.
fih
I've been meaning to play this game since Markiplier first posted his video years ago, but never got around to it. Life just gets the best of ya.
It's worth playing with headphones, as the audio does a lot of the heavy lifting in regards to atmosphere and setting the tone for tension. I already knew what I would see, but this game still gave me goosebumps and a sense of uneasiness that many horror games have failed to do.
It's fantastic and well worth the money, even if you only play it once.
David... B-R-A-V-O
Very simple yet unique and most importantly - atmospheric.
Did not expect it to end the way it did...
It's a very short game but it gives you a memorable experience. Navigating the coordinates while avoiding the walls is pretty intense, alongside other things happening in the submarine.
This is a strong recommendation, if you want a short game that'll make you feel uneasy, pick this one up.
Cool game. Someone should make a movie about it.
Me cago en la puta
jogaço
If you can get it at a ~3-4 EUR price it may be worth it. Otherwise not really.
It takes about an hour to complete and there isn't much to do.
The atmosphere is nice, the story initially interesting, but nothing seems to happen.
As a first time game, definitely cudos for the dev though!
Very fun good game
玩法其实很单调,就是走坐标系,主要是压抑的氛围和世界观很有意思
feels like working a 9 to 5
A Good Game with an Amazing Movie
I loved watching mark play iron lung when he first did, loved the movie he made it was jaw dropping and had me at the edge of my seat. and the game itself is amazing. Love the cosmic horror and rustic appeal to THE iron lung.
this is a game that really does a great job of immersing you if you're in the right mind set to play it. wear a good pair of headphones and take in how otherworldly this game sounds. the horror isn't apparent from the start, but once you get in the groove, you start feeling insanely paranoid once your navigation tool informs you that *something* just passed by at one point or another and is not there anymore.
if there's one thing i believe Szymanski excels at in all of his games that i've played (Dusk, this, Squirrel Stapler, Pony Factory, and Butcher's Creek) it's his ability to tell a story through the way you play it and if you choose to engage with the world he's left for you to explore. if you dig deep enough down the rabbit hole he's left behind in all of his games, reading the notes, seeing the different ways his brain ticks, you will be rewarded, even if the reward may not be exactly what you were expecting and will linger in your brain for awhile.
it is a fairly slow game given the length (it's only about an hour or so if you know what you're doing) and the story is some opening text, but the added lore via the terminal is a good read if you get tired of the mundane task of taking photos of weird, creepy things in this ocean of blood. i do wish the ending was a bit less "generic short horror game" ending (i think David does that bit better in Squirrel Stapler and here it's a bit weaker given how predictable it is) and i do wish the mechanics were a bit more complex, but it's simplicity seems to be part of its intended effect so i'll let it slide and hope that either the Szymanskis or maybe some other Indie dev will flesh out the core concept of the gameplay into something more. if i had to compare my hope to something, think about how much people have surprisingly gotten out of the "Sit and Survive" gameplay the first Five Nights at Freddy's game created, something along those lines.
i think it's only a matter of time, especially given the success of the movie, until we see some die hard fans make something even better. until then, it's a really neat game and i'm glad it's made such an impact on so many different people one way or another and i'm glad to see more people discover how creative and talented David Szymanski is as not only a game designer but as a storyteller.
cannot wait to see what the future holds in store for him and this world if he chooses to continue it in one shape or another...
also chop goblins 2 when? /hj
Muy buen juego, logra crear una buena atmosfera de tensión con cada evento, si te saca sustos cuando menos te lo esperas, recomendado 10/10
I drowned in the koolaid :< Film is good too :>









