Hi
The Visual Gaming (not Visual Gaming High School) is open for submissions. Check out the Visual Gaming section on http://imagine.thespoke.net and http://www.project-hoshimi.com/ for details on how to compete.
Its not really a full Game-development contest but an AI coding contest. You need to code a .NET class with a defined interface that programs the various nanobots in the game. The cool part is that you can plug in classes from different people into a single game and battle your teams – to check where does your algo stand.
Visual Gaming will open for high-school submissions on 10th Jan and you can submit the same solution for the high-school category as well.
Try it out … its really cool
ashwani