Defend the Earth from invading UFOs. Aliens are invading our earth and it is up to you to defend an important nuclear factory. Buy cannons, train new defenders and tell them what to do.
Aliens have landed and want to eat the farmers' brains! You must defend the barn. Strategically arrange the crop circles to make them follow a path of your choice. Then place your military assets and blast them back to space!
Take a control of huge space vessel called Radiant Star. Protect your vessel from all out attack by enemies. Buy weapons and upgrades to resist enemy attacks.
