Outpost Kaloki is a city-building game in space. In each level, you are given the hub of a space station, some cash, and perhaps a module or two, and it's your job to build more and better modules to improve your station and reach your goal before time runs out.
Dotville is a city-building Flash game along the lines of Civilization, but greatly simplified. You play the leader of a tribe of Dots (yeah, Dots) and must rise to the rank of Emperor in fifty turns, then defeat the evil empire of Squares. It's a simple game, and yet somehow very complex; a bit flawed, and yet fun despite it's quirks.