This is definitely something special, I feel that when you finish the game and get everything patched up you will definitely have something very substantial, it feels like I'm standing on the surface of something much larger and makes me hopeful for the future updates.
Its got the kind of style of something like penumbra which kind of brought me back to my childhood (Penumbra 2006 tech demo was the first real horror game I ever played) but the story seems to be something more personal and emotion based like Silent Hill or something. I like psychological horror being used as a way to explore trauma or personal subjects and etc. I really loved the feel of the environments especially and just the general ambience, very industrial and subterranean feeling. Moist walls and rusted metal, heavy machinery and squealing pipes. Its an aesthetic I really dig for whatever reason and there's just the right touch of unhinged abstractness, hell I bet it will become more unhinged later on but I'm getting good vibes from this is what I mean. I also like the exploration and level design and how you have to explore the areas room by room and collect items and then figure out what does what. The fact that the areas seem to be at least semi-interlinked is good too and helps with the general feel of exploration, it generally feels quite open and I like that.
The only critiques I would have to say is that it seems like a lot of the time when your jumping and crawling on top of things you can get stuck fairly often, so I think player movement might need some tweaking and just general stuff like making sure the player does not get stuck on stuff. For me I was able to just save and quit and then press continue and I would be un-stuck so It didn't ruin it for me but there was 3 or so times I got stuck like when jumping through the shutter on the other side of the iron gate for instance. Other than that I think there should be a bit more options and graphical settings, you know just general technical stuff. I can't comment on the enemies because I kind of blew through the puzzles and stuff but That's just because I have a lot of experience with this type of horror game and the one or two times one appeared I stayed way clear of them and made sure they would not see me.