Have you ever dreamed of being King? The developers of Trade Nations aren't exactly offering that but they do claim that you can "Become Mayor of your very own Nation".
The aim in Trade Nations is to expand a small village into a sprawling metropolis which presumably because so massive that it achieves it's own nationhood status in Trade Nations". To help you achieve your megalomaniac aims, there's also an iOS version of the game so that you can expand your empire while you're waiting for the bus.
For those used to playing Trade Nations on their iOS device, playing it on a Mac - especially in full screen mode - will be a breath of fresh air. There's plenty to keep you busy with 80 levels and 100 unique Achievements as you build your nation. You can build housing, harvest raw materials, establish shops and generally anything else that goes into nation building.
Trade Nations is no match for The Sims but it's an easy to play alternative that will satisfy the frustrated Mayor or King in you.