Recently, on a recommendation on this blog, I tried Ayiti, a UNICEF-sponsored game about the difficulty of making ends meet as a poor family in Haiti.
It’s deeper and more playable than some of the other political games I’ve mentioned here recently: the interface is mostly well-designed (though I had a couple of particular gripes); there’s enough variation from playthrough to playthrough that you have to adapt your strategy a bit even when you think you’ve cracked the game; and it didn’t feel like preaching to the choir, at least not all the time.