Noiseminded, my friend, you nailed a terrifying atmosphere in a minimalist environment! I had a sense of dread throughout my playthrough, especially after I encountered the Anomaly.
My only request would be to indicate what the objective is at the beginning of the game (I wandered aimlessly for a bit lol), but the rest of what you have here is done quite well. Best of luck in the rest of the development; I'd love to see a second part (and more).