Good job! I liked mechanic where you need to take a wire and power up electricity. Environment and postFX are beautiful. You should work on performance optimisation before adding new content :)

Flashlight lags behind player movement. Sensitivity a bit high, grain effect noted and well executed.

Thoroughly enjoyable. Detailed textures and lighting, all well-matched. Good sound design. Puzzles are not excessively difficult. That patrolling beast (hopefully not my crew) looked terrifying, and its behavior was aggressive but fair.

Unfortunately, I encountered performance problems. It really heated up my laptop, and on the second attempt the game actually froze. Task Manager reported it was consuming 99% of resources, which suggests a memory leak. 

Excellent game!
The environment was neat. The design is superb, although I was not too keen on the AI, the game did its job - showcasing true horror - great work developer (s)! 💌