So a couple of things. #1 I love the dithering style that you used for your game. #2 there are some things you can improve on that would immediately make this game 10x better than it already is.
Lets start positive. Your game is fantastic. The story, the visuals, the gameplay (Even as simple as it is). Fantastic!
I'm glad I wasn't the only person to make a 3D game, and I wanted to use the dithering effect in my game as well as I think it makes the game look 10x better.
Some things you can improve on are to do with the lighting and the animation.
Lighting: The scene is too dark, I had to stop playing around the bathroom part because I genuinely couldn't see anything at all. This is a simple fix to either just add more lights, or up the gamma a little bit to where the player can at least slightly see in the dark.
Animation: The camera movement is great, but I'm confused about why the default camera state is slightly tilted to the right? Another simple fix but it can genuinely change how good your game feels to play immediately.
Very cool project for the limited time we have though. Very well done