City Under Siege is a defense game in which you have to defend your outpost with the cost of your life. You are driving a tank which must repel the enemies attacks, the battlefield is the key to success if you use it right. Try to avoid enemy fire and collect as many power ups as you possibly can because every power up is different and it will be of great use in combat. In order to finish each stage you must destroy all the enemy tanks without them destroying you or your outpost. Good luck soldier!