Alien robots are moving towards the colony of earthlings. They want to attack the colony and destroy it. You are in a new exciting online game Tower Defense will have to protect the settlement. Carefully inspect the area around the base. Determine strategically important places and then place defensive towers with cannons using a special control panel. Enemy robots approaching them will come under fire from your guns. Destroying the enemy robots in the Tower Defense game you will receive points. On them you can upgrade your towers or build new ones.