TLDR: Great smol horror experience, liked it, hopefully dev gonn make more and improve along the way.
Now, for the dev.
Ola. Some feedback. I am hobbyist gamedev myself, so i will share technical stuffs that might you get interested.
Pickup(or interaction items in general), should have invisible collision box that is bigger than items themselves(keys for example), for easier interaction. Pixelhunting is not fun.
when you spawn things (ejecting key from vending machine) it is better to force spawn it in desired location rahter than doing phyiscs. my key got flung halfway into nearby wall, almost softlocking me from progressing.
Lamps that pointing downwards but shine MORE light onto the ceiling than floor? what kind of supertechnology is this?)
Blood decals (dragmarks) should not continue OVER bodies that supposedly left them. I beleive there is Z-order for decals and meshes, so you might wanna look into that.
Copyrighted music and footage is a big nono in modern world, altho i cackled a bit when i encountered it :)
COuldve used original classic (d 1 for example) game footage over some kind of midi cover of the.. song. you knwo, the song. The one that rips.
when loading new level, it is good practice to either save and then load state of hold item(flashlight), ir just lit loading area so player doesnt stay in the dark waiting fo level to load, when its already loaded.
Constant headbobbing is no bueno. How about make it gradual, high bob while running \ scared, and then lower it down to 10% after some time has passed or player stands still?
Oh, and one more thing.
FPS lock. it is very good practice to limit fps. to 60 for example. While modern GPUs can technically go unlimited FPS, this will put an unnecessary strain on them, and might impact gameplay since its gonn overheat itself and then throttle to cool down.
My gpu was tryna take off, which was strange since game grafeeks are fairly simple.
60 fps lock would be cool(you can use VSync as a substitute, i believe)
Good work, it was interesting thing to try, thank you for your efforts and good luck on future projects, friend!