Just a strange idea but um.. if that game is all he's addicted to, why not delete it? or in case that it's on a cd, then take the cd away? Preferably breaking/gifting/trowing it away.

I got addicted to a cretain site, I was really hooked on it and the best way for myself to get rid of it? I asked my brother to put a password on the site, only one he will know.Up to this day, even if I tried, I'm not able to go back to the site again, and I'm glad.I missed out on alot of school by staring at it and with my lazyness, internet caused my grades to fall.