The campaign map for example is treated in a completely different way, and is no longer based on Rome's grid system -- it's completely freeform. We've also taken buildings out of the region capitals and placed them on the map itself, so they are visible at a glance, easily upgradeable straight from the map -- and they are individually attackable. We've streamlined and improved large parts of the campaign game such as recruitment, trade and diplomacy.

On the battle map (both land and sea), the increase in visual quality and the number of men on the battlefield is incredible. The new engine has allowed huge improvements in graphics, terrain & vegetation, destructible buildings, as well as more advanced unit behaviour and abilities -- and ships of course. We've had a programmer working for almost a year just on making the sea look fantastic (and move beautifully).