Really solid game!
As others have mentioned, really got the Iron lung vibes which I believe it was going for.
Voice acting/lines were top tier and did make me chuckle a couple times and the art style was very fitting for the locations, with some excellent models.
The one small down side I have was the tutorial; cause although it was graphically impressive and the voice lines were good in the tutorial, I don't think it did a great job in communicating to me 1. How buttons worked 2. In what situations the buttons would be useful.
Regardless once I actually started figuring things out through trial and error the core gameplay was really fun. Really keeping me on edge as I slowly moved through map trying my hardest not to get spotted. The extra resource management also really helped added to the heighted tension.
TLDR: Solid 7.5/10, and I can't wait to see what the creator has next in store.