It's us against the aliens and our forces are well-matched, so it's a battle of brains that will decide the fate of the planet. Start by deciding where you'll place your ships. Then start the search for the enemy's ships by shooting missiles in their direction and hoping you hit something. If you miss, the enemy will get a shot in while you try to figure out the best place to try next, but if you hit a ship, you'll get to keep firing at them. To win, blow up all the enemy's ships. Earn a high score by taking them out in as few turns as you can in order to minimize the deaths and injuries to your army.