Caesar III is a city-building historical sim created by Impression Games and published by Sierra in 1998. It's the third chapter of the popular series created by David Lester.
The game is set during classical antiquity, and all aspects of typical Roman city life are reproduced faithfully: food, resources, religion, military, and so on. Caesar combines both elements of Sim City 2000 and The Settlers II. You have to build and expand a city, deciding the residential zones (in Caesar II the houses are built, in Caesar III you choose the areas, as you do in SimCity); but also infrastructures, security and religious buildings, recreational areas and so on. At the same time, you have to pay attention to the production and distribution lines, so that people and resources can move adequately (just like the trade routes of The Settlers). You will need to produce food, mandatory to sustain your population, but also wine, oil, pottery, weapons, furniture, and other items you can trade. It's fair to say that Caesar III represents the best of both worlds.