With Num lock off, press and hold down End on the numpad. A whole bunch of squares will float on the screen. The glowing square shows your location. Half-squares mean there is one tileset (the colours dictate tilesets) and whole squares are two tilesets. A small cube in the corner means 3 tilesets. This is all a bit confusing, but try it out. Yes, it is a map of the knytt world!