Sid Meier's Civilization 4: Defenders of the Gates

Strategy Sid Meier's Civilization IV: Defenders of the Gates. Choose one of 4 different cultures and erect towers to repel waves of cruel enemies Hun. Choose a place for building a tower in strategic points in the path of the enemy to inflict more damage. Earn gold for each enemy defeat; use it to buy, repair and renew the defense. Develop with the help of various epochs, using technological advantages. Enemies become more and more advanced with each level; you will meet bosses at the end of each epoch. Defend your citizens and survive during the story!