Defend Yourself Download

You are under attack by an unknown villain who sends a barrage of different types of missiles to try and destroy your city. It's a good thing your scientists have developed good trajectory tracking weapons in order to shoot those missile out of the sky.
Defend Yourself by upgrading your weapons. Increase your income and never miss a gem by upgrading your drones. Buy nukes to do a massive amount of damage during the late game barrage of missiles. How long can you survive this attack!? Defend Yourself!