The story purports that by ' noclipping out of bounds in real life', one may enter a realm known as the Backrooms, an empty wasteland of corridors and rooms with nothing but 'the stink of old moist carpet, the madness of mono-yellow, the endless background noise of fluorescent lights at maximum hum-buzz, and approximately six hundred million square miles of randomly segmented empty rooms to be trapped in', as well as malevolent entities that hunt the traveler across three separate areas of the Backrooms, 'Levels 0 through 2'.
The Backrooms is a short passage originally posted to 4chan's /x/ board in 2019 as a caption to a photograph of a hallway with yellow carpets and wallpaper.
Main article: The Backrooms A typical depiction of the Backrooms, digital render