The Infinite Loop

You were doing urban exploring and came across a room with a plain gray room and a single gray door. When you opened it, it looked like it brought you back into the city. But that was before you realized you had sprung a trap and the door you entered disappears after you go through. Now you find yourself running for your life. Each world is trying to kill you and the only thing you know is you have to find a plain gray room with a single door to get to the next world that might lead you back home or to your doom. [WARNING Horror and Survival Themes]