Jennifer Government: NationStates is a web-based game (free) that allows you to build your own nation based on any political ideology you want. Then you get to compete (I’m not sure how) against other people’s states. Its a game based on the book Jennifer Government by Max Barry.
The book sounds like it could be SF, but Amazon doesn’t list it there. Although I couldn’t figure out where they did put it….
Update: All hail the great and powerful (well, soon) Bohronia!