There is alot of depth in RTW. Lots of people cannot even manage the Egyptian cities without cheating and using extermination on their own people. City management is challenging. Winning battles without using 15 units of uber troops can be challenging. Taking a minor faction and allowing enough time for the Romans and Egypt to grow into big threats is certainly challenging. Try winning without bribing any invaders. All of these can lead to situations that just might improve your gameplay.