Goal of the game is to conquer all planets on map. To win the war you need to create fleets and send them to enemy planets. It's simply - you need to click on make fleet button, and select target. When fleet will arrive then you will get battle result. You will start with one planet available. You can upgrade it by increase level of: 1) ship production, 2) ship speeds, 3) planet defence level. It is worth to do upgrades. Winning with only one or two AI players is really easy, but try to win with 9 enemies... Good luck, Space Commander! You need to have ".NET Compact Framework 3.5 cab" installed on your device (you can find it on Microsoft webpage)