writes: "Someone introduced me to a new game called Robocode and now I'm hooked as well as my 17 year old son. We are both learning Java while playing the game or I should say while building our Java robots. The game is setup to teach you how to handle events, how to create inner classes, and other Java techniques to build more sophisticated Java bots. I have a c++ background so I've been helping my son with his bots, but he's catching on very fast. It's turning out to be a cool and easy way to get the kid clued into programming and best of all its free."
I'll bet if the little Logo turtles shot at each other, I would have had more fun programming as a kid.