Defend your base against enemy soldiers as they rush in shooting on foot and in tanks. In each level, a wave of soldiers attacks your base, and you have to defend it by killing all the enemies. You earn money for each soldier killed, and at the end of the level you can use that money to improve your situation. Spend money bringing your health back up, increase the speed and accuracy of your shooting, buy walls to protect your base and extra weapons, such as cannons. Start the next level with your extra weapons and abilities and face the enemy again. See how many rounds you can survive by choosing improvements wisely and shooting skillfully.