Date added: 2013-09-09
Description: Alien life forms have been detected near your planet. Your army has mobilized its defensive tower forces to protect your homeworld. Stop the invasion before the enemy reaches your cities! Build defense towers to stop the invasion. Destroy all alien forces before they reach your civilian cities. Should they get past your defenses, lives will b e lost. Click on a tower to check its status and upgrade or sell it.
Instructions: Instructions in game.