Blind Spot

Black border. Black background. Black walls. And you are black too.

The only things you can see are what a guard's lamp falls on, and the darkness that hides the room from you also hides you from them. Every room of Grey Holt castle holds one treasure, glinting purple in the dark. Take it, find the door, walk out.

Play it alone: one thief, fifteen rooms, a par time for each and a rank after every room. Or bring a friend: two thieves, one joystick each, one castle full of lamps.