Click on the empty tiles to the left to construct buildings, use them to defend your base from enemy and to produce units to attack them. All structures are upgradeable, which makes either them or units they produce more powerful.
Create a maze out of your towers to defend against 49 levels of advancing creeps. Five different towers with five Upgrades each including distinctive elite towers.
An evil force has swept into your land. Their sole purpose is to destroy everything, and everyone in their path. Repel these beasts before all is lost. Upgrade your base, and unlock special units to clear 5 levels and claim victory.
Conquer all provinces that you have to take by force in the battle. Manage the production of all resources, build settlements and upgrade them to unlock the troops.
Alien invasion has begun! You control the last platoon of soldiers that have survived the onslaught. Protect your bases or once all the bases are destroyed, aliens will take control of everything!