This is a very simple game that uses motion tracking to move a spaceship through a field of asteroids. There is a readme included that should explain how to configure the controls properly. http://www.gabrielkoenig.com/patches/AsteroidTracker.zip
I really enjoyed making this game. My workaround for collision detection really limits expanding on the design, but I'd be very interested to try making more games using PD. The best thing about using PD for a game is that it can make use of very unconventional control devices.
Sorry about the patch, it's a little messy.