If you already own Age of empires and Rise of Rome, you will probably find this more convenient since it has both on one disk.  If you weren't around for the release of Age of Empires and Rise of Rome, then this is for you.  I guarantee you will enjoy having online wars with some of the most historical civilizations, like the persians, romans, and egyptians.  Trust me, whether you are completely new to the Age of Empire scene, or are just looking for conveniance, this is for you.