GR:Sim City is huge. The game has a scale and level of detail that is almost overwhelming. The amount of data and info about your town and its inhabitants, who are always available, is hard to wrap your head around. Here is a mulliard things to take into consideration, and more opportunities than many would have time to try out in their time with the game. A region may consist of up to 16 cities, and you can be mayor for all of them. It is just to become dizzy.