Internet game addiction is becoming a severe problem in adolescents. The purpose of this article was to present a case study on Internet game addiction. The effects of a new program to treat Internet game addiction based on cognitive‐behavioral therapy, behavior modification, and a 12‐step program are described. The subject in this case study was a 16‐year‐old Korean adolescent who lived in the United States. The adolescent received 5 counseling sessions which seemed ineffective in correcting his Internet game addiction. However, at follow‐up, the adolescent showed improvement in game addiction. This article suggests that these 3 therapies could be combined to form a treatment model which could significantly benefit the patient and positively impact behavior change.