Slick.. go out.. wash a few cars... mow a coupla lawns... beg a little.. and get yourself a copy of spore.
You will appreciate the mechanics that the developers have managed to create that enables you to literally evolve a little cell... into a galaxy dominating force.
It is not age of empires... or c&c.. or wow..
It's just clever.. pretty cute I have to admit... and has a pretty good go at achieving something which really is as complicated as the world itself so never going to be done perfectly.