I have a godson/cousin going on six years old who is autistic. He's very smart but suffers from the usual characteristics of autism; he doesn't talk much or express himself vocally, he seems to be in his own world, he doesn't respond to his name most of the time and has below average speech skills are some of the ones that stand out. I would like to get some videogames for both us to hopefully play together or even for him to play alone.
What I'm looking for is something that isn't too easy/childish such as Pico, V-Tech or the elmo's letter/number games for N64 because he already knows the alphabet, numbers and those games are too easy/simple for him. Anything somewhat more advanced than that, but something a seven year old could handle is what I want. Of course I am looking for games that are appropriate as I don't want to expose him to any more violence than he would see on Nickelodeon or in a Disney movie. Anything from 2600 to Wii is good and I'll even look into getting systems I don't have or imports if it sounds like it would be suitable.
Does anyone have some suggestions? I'd also appreciate advice from those familiar with autism more than others who just "know about it". But all suggestions are welcome. Thanks.