Interminable - A Backrooms Story

Four college friends' ordinary lives are thrown into chaos when they no-clip into the seemingly endless labyrinth of randomly segmented rooms with yellow wallpaper--the Backrooms. Their will and knowledge to survive are put to the utmost test when the maze appears to have no way out...and when the indistinct and terrifying screams of the entities roaming the Backrooms is heard, it may already be too late...

(Though this takes place in Kane Pixels' Backrooms Universe, there may be some inconsistencies as this story has been written as Kane's series is ongoing.)