You'll be rewarded in different ways by different gods. These gods will appear in your city in human form and, while they can be right royal pains, battling with each other in the streets and flattening buildings in the process, you can curry favour with them by building temples dedicated to their worship. 12 of them in all, ranging from Zeus, the most powerful of all, down to Aphrodite, Poseidon and Apollo. Unlike previous games in the series, though, you don't have to do it all on your own. Naturally, the object of the game is to build up the biggest, most powerful city state, knocking out or weakening your neighbours until you control all of ancient Greece.
However, as in most building games, you do control your workers and soldiers, decide where to build and so on. Although it sounds like one, Zeus: Master of Olympus isn't strictly a god game in that you don't actually play as a god.