Some versions of the Backrooms game use randomly generated or procedurally generated maps, which means that no two playthroughs will be identical.
This randomization contributes to the fear factor since the player never knows what to anticipate next.
Escape or endurance?

The purpose of the game may differ based on the version you play. In some games, the goal is to escape the Backrooms via discovering a secret exit or entrance.
In others, the aim may be to live as long as possible or to find particular Backroom secrets.

The atmosphere in Backrooms games is critical to create an uncomfortable sense. The buzz of the lights, the quiet between encounters, and the monotony of the atmosphere all add to the overall horror experience.