I like the finishing touches of the crosshair cursor, flashlight flickering from time to time, and your cursor going away when you dont need it. The lighting also really brings out the atmosphere. Though gameplay wise, I found myself just endlessly wandering around trying to find the next door or intractable to get. I was also just shooting at every furniture because I could. Perhaps there could be some limitations like needing to reload your gun (or even limited ammo) so that the player would feel more powerless and the game would have more tension. The mimic furniture could also shift places whenever you aren't looking or when you enter a different room.