A simple but really well-made idea, and if this is your first game, it's awesome! I really appreciated the psychological aspect of the game, which slowly wears you down, starting with your sanity, the slowness of the character, and the closed and confined space. Well done, I look forward to your next releases. You deserve five stars!
If you want, check out my page too. I need some opinions from other creators.
Bye, friend :)