The Backrooms is an online urban legend originating from a creepypasta posted on a 2019 4chan thread. One of the most well-known examples of the internet aesthic of liminal spaces, which depicts usually busy locations as unnaturally empty, the Backrooms was first described as a maze of empty office rooms that can only be entered by "noclipping out of reality".
As its popularity grew, internet users expanded upon the original concept by creating different levels and entities which inhabit the Backrooms. Fan-made video games, collaborative fiction wikis, and Youtube videos have also been created: a series of horror shorts created by YouTuber Kane Pixels in 2022 is credited with popularizing Backrooms content on the platform, and he is slated to direct a film adaptation of his Backrooms videos.