It is underwhelming to say this game was *inspired* by Iron Lung.
In my personal opinion, it's not a complete rip-off of Iron Lung... although it has the same theme, submarine, fix-it mechanics, silent protagonist, and even the same jumpscare at the end!!!
Don't get me wrong, the game looks nice and runs surprisingly well considering my computer advised me to not run the program. It's just a shame you forgot to add something unique to it. :(