>oversleeps
>wakes up with no one around
There's nothing wrong with the concept of using liminal spaces in a horror game, there's nothing that much special about it either to the point you can just drop everything else and make it the only thing in the game, SH in general, 3 specially, makes great use of the concept to enhanced the atmosphere of the games, but they also have many other elements complementing it, Backrooms is just Silent Hill by lazy people.