Genniangel, i am really worried for ur situation.Actually,internet Game Addiction is no different than dealing with any other type of addiction. Whether you are addicted to gambling, cigarettes, sexual deviancy, or eating Milky Way bars, all addictions have certain basic elements in common. A high degree of commitment to breaking established habits is required, as are persistence, dedication, honesty, and self-compassion.
1. Setting an absolute schedule or time limit for how much time he spend on the 'Net.
2. Forcing himself to stay away from the 'Net for several days at a time.
3. Placing self-imposed computer "blocks" on certain types of services.
4. Setting an absolute policy for him of never signing on to the net at work (unless this is required for his job).
5. Establishing meaningful (but not harmful) consequences for him for failing to keep his word.
6. Applying these self-imposed consequences until he do regain your ability to keep his word consistently.
7. Forcing himself to do other things instead of spending time on the net.
8. Resolving to learn how to derive other more healthy sources of pleasure in life to replace or even exceed the pleasure he got from being on the 'Net.
9. Asking for help whenever he feels he is a not being successful.
10. Avoiding people or environments that might encourage him to return to his addictive behavior.
You also can make a plan which is considered as self-imposing such a powerful motivator. This strategy worked like a charm. The trick is to keep 2 days from becoming 5 days, or 5 days from becoming 10 days, etc. Here you will need a  plan to keep an occasional relapse from triggering a return to his  video game addiction.