You can choose from several different types of ship; each of which have different stats and weapons. Some ships are short range, others can fire from much further away. Some ships have armor piercing guns, others are better at destroying the main alien mother ship so choose carefully! You can only create new ships when you have enough points (these points generate automatically over time) - try sending multiple ships out at once instead of one by one to maximize your damage. You can also upgrade the level of each spaceship to improve their damage and HP etc. Can you vanquish the aliens and make the galaxy safe again?