The City-State System

Ok, I've got no idea how many people have played Sid Meijer's Colonization but, basically, it's a retelling of the colonization of the Americas from the European perspective.

It's a pretty complex game, but, it's not nearly as complex as say, Civ III Complete Edition, and this version is going to be super trimmed down because you're only worried about 1* City.
*(Unlike, in my personal game of Colonization, [which I've been working on once every couple of days for like a year,] where I have somewhere on the order of fifty settlements at this point.)

Anyway, check out any of the topics you want to bellow, things like units, resources, research*, trade, founders, and the final war for Sovereignty.
*(Something you more-or-less didn't do in Colonization...)