This histogram is exactly what I expected. This histogram could be applied to pretty much any game in existance. Of course there will be some outliers, but the core of gamers these days is typically 15-27 years of age. Not saying it's not great that there are some older gamers...just repeating some stats that I've heard.
Sorry, forgot the important part.
24
Male
Duluth, MN, USA
Civ 1
Civ 2 ,<----played this one ALOT
Civ 3 , <----not so much because of the whole "getting a degree and a job"
Civ 4 , <---- back in the groove...I'm gonna have bad addiction problems here