Backroom

The concept originated from a 2019 4chan post where a user shared an image of a "liminal space"—a transition area that feels eerie and unsettling when empty. The accompanying text explained that "no-clipping" out of reality in the wrong places leads to the Backrooms. This term, borrowed from video game terminology, describes passing through physical barriers that should be solid.

An unending expanse of interconnected rooms and corridors totaling approximately 600 million square miles. backroom

In 2022, creator Kane Parsons released a YouTube series that popularized a structured timeline involving a company called ASYNC experimenting with a "Magnetic Distortion System" in the late 1980s. The concept originated from a 2019 4chan post

Fans have cataloged thousands of "Levels," each with unique properties. For instance, Level 5 is often depicted as a 1930s-style "Terror Hotel". An unending expanse of interconnected rooms and corridors

The most famous iteration, Level 0, is defined by several key features: