Strategically place your army against waves of enemies. Shop for new weapons of destruction at your local War-Mart and upgrade them to deal maximum damage!
Prepare your defense against the oncoming waves of creeps. Don't let them complete the path. Do that by building your base that consists of defense towers along the way.
You are the commander of a space battle station. Below you, on the planet's surface, enemies are trying to capture deadly missile silos. Don't let them seize these silos. Protect them at all costs!
