I love this mechanical stuff. It instantly reminded me of your other game, 'The Other Side'. This game is much, much better than that one and that's not to say that 'The Other Side' is bad, just that this one is particularly amazing.
The graphics are visceral, dirty, and raw. The sound design is creepy, immersive, and effective. The story really lays out the heavy stakes in a way that is understandable and it builds the tension rapidly.
My only real issue with this game is that I had no idea I was doing anything wrong until I did something right. I'm definitely willing to share the blame on this one because I can be a total idiot at times, but I do think the 'losing' cutscene could be a bit more direct in telling the player they failed. The emails could have also done a better job of explaining the mechanics of the machines.
Also, I think the red lever next to the anesthesia formulator should stand out a bit more. I didn't notice it for the longest time and couldn't figure out how to pour the different liquids into the containers.
That being said, none of those issues detract from the overall game and it's totally possible that most other people will figure it out quickly and enjoy the game without any issues at all.
Thanks for making games!