Great game, loved how the camera, visuals and music meshed, very reminiscent of Hotline Miami.
very immersive and engaging, if you continue this project further, would totally loved to play a horror game with a similar vibe or premise.
But I think the second half was a bit barren compared to the first half which was more "story-oriented". The difference in the two halves were a bit jarring, feel like populating the second half further would reward the player for exploring the empty space more.
Also, maybe add a diminishing resource like oxygen or fuel in the second half would provide a sense of urgency and claustrophobia to the second half to make the second half more challenging and exciting.