Critical Error is an enigmatic level within The Backrooms. The level itself is extremely dangerous for various reasons.
Survival Difficulty: Class Undetermined
》Mysterious Properties
》Unknown Information
》Undocumented Entities
Description
Critical Error takes on a form similar to that of Level 0, being randomly segmented rooms and hallways. However, the walls are black with green 0's and 1's over them, the ceiling is non-existent (the walls reach up into the abyss), and the carpet is covered in 0's and 1's. This level could be described as a binary counterpart to Level 0. Critical Error also seems to be infested with countless strange types of entities, with varying hostility. One wanderer reports a reality-warping figure chasing him around the level, and messing with his mind.