Thanks, I used a few tricks. Too many items would waste resources, but too few would make the space look empty. So I used spaced-out lights to limit the player's field of vision, creating a scary atmosphere while saving a lot of resources.
This submission has been disqualified for unknown reasons. As an ordinary Chinese developer, being disqualified on my first Jam attempt is very disheartening. Nevertheless, I still appreciate everyone's votes and comments.