For instance, the Civ games are basically Whig History: The Game, presenting liberal capitalism as the ideal end point for all societies. It even includes uncivilized "barbarian tribes" whose sole purpose is to be exterminated so you can take their land for the glory of capitalism.
alternatively, it is free, as are all games that aren't mmos
:based-department:
And sometimes MMOs, if there's enough interest that it spawns a server emulation community.
yo ho yo ho a pirate's life for me