Google Maps RTS Game (beta)

The first Google Maps-based real-time strategy game is here! 2 to 25 random online players are given a country with an army. Attack neutral or hostile countries and try to conquer the whole world. If you successfully invade a country, there's also a 20% chance that you'll gain additional troops. The game is still in beta, and more fun features are expected to be added. However, their website seems to have been slashdotted and is currently unreachable; it might take a few days before it's fully functional again.