Computer Games for 9 year olds

For kiddies, stay away from MA15+ ratings, if they play them, they get addicted to the violence in them, and pretend to be 007 or some other figure in the school playground, and they just look like jerks. Also watch out for coarce language ratings, even when used in context, they pick up fast.
M rating games are alright, (mostly) and I recomend the battlefield 1942 and Vietnam series, cool game, no swearing, history lesson and no blood and gore (slightly older game, made in '02)
Empire earth, Tycoon series (rolercoaster, zoo, train etc.), Medieval total war and PAC man (CLASSIC) are all low violence (and excellent) games.