Stadtspielplatz 1 is the first part of a series of games that can be played by projecting digital images on certain surfaces in the city. Therefore a projector-camera-system is used, which might one day be found in mobile devices.

The prototype was made using a Wii controller combined with a mobile projector and two infrared LEDs as reference points on the floor. The goal of the game is to collect as many blue particles as possible with the “digital flashlight”.

Stadtspielplatz 1 was created in 2011 as a university project about new interaction patterns for mobile projectors.