I'm having a hard time thinking of any that are banned...
Hmm, ok, i'll take that back, was pretty sure there were some. In any case, you can't deny that the vast majority of video games, that involve some sort of warfare, whether historical or fictional, tend to portray US as some sort of guardian angel of all things good, which is a form of propaganda too.
I haven't exactly played a game, where i get to play as a native american during the colonisation period, in a historically accurate way.