How to enter the Backrooms:: Noclipping, the entry method for the Backrooms universe, originally refers to a cheat function in 3D games that allows one to pass through walls or objects. The Backrooms lore applies this concept to reality. It is established that under certain conditions in the real world, an anomaly can rarely occur where one passes through solid matter like walls or floors, unintentionally transporting the person to Level 0 of the Backrooms.

How to exit:: One must solve puzzles or noclip through specific walls depending on the level they are in. For example, in Level 0, one moves to the next level by passing through a wall; in Level 0.5, one solves a portrait puzzle; and in Level 390, one must find a door leading to a parking lot to return to reality.

How many levels are there?:: It is not known exactly, but there are roughly 600 levels.

More details on the Backrooms:: Monsters called Entities live in the Backrooms. Depending on the level, there are places with no entities, few entities, or very many entities.

About Guest:: Guest has been unable to escape Level 0 (where Seongmin is currently located) for one year.