@Brian Boru It dawned on me that Kingdoms Reborn is basically Civilization except with an extreme level of city play and detail. At least, it matches up with the way that I play Civilization. I seem to remember one of your personal main activities was exploration, which you don't get a lot of in Kingdoms. I always just put my explorers on auto.
Speaking of exploration, I did find some impressive ancient ruins and took control of the area, and it gives me tourism dollars, and some day it will give a boost to my hotel industry (whenever I get that far).
But you pick and place all the buildings and have two very large tech trees. You can advance your military all the way to the modern age, and you can attack those around you (or defend yourself), and later you can attack across the sea. Battles are not as in depth as in Civ. You pick which units you want in the battle, and the war plays out automatically over time. About the only things you can do after the battle starts is send in reinforcements or tell your units to retreat.
Guido basically plays it exactly like he plays Civ, and in our co-op game, every 15 minutes (appx) I'm getting a message that he's conquered someone else. Like Civ, there are a ton of civilizations that aren't in the running to win the game. You can vassalize them and receive regular payments from them.
I'm not entirely sure what all the conditions for winning are, but I think that if you build 4 wonders, you win. How else you win, I'm not sure. There may not even be other ways to win, but I assume that if you conquer all the competing factions that you win. I'm playing a version where there aren't any AI factions, so I really haven't cared about winning since I can't help but to win eventually. But there are a lot of options when you set up your game, and you can add as many AI factions as you like.