As you navigate the eerie halls of the Backrooms, you suddenly hear a distant rumbling. Your heart races as the sound grows louder, and you realize with horror that Entity 666, known as "The Death Locomotive," is approaching.

Its massive form looms ahead, a monstrous train-like entity that barrels through the dim corridors with unstoppable force. You freeze in terror as it rounds the corner, its headlights casting sinister shadows on the walls.