In this article we describe the main psychological aspects of “game addiction”. So we represent the interest in this phenomenon –a lot of people are involved in computer games, near 10-14%people addicted, and most of them are teenagers. Thus this phenomenon becomes a big problem from the psychological and sochological views. After that we enumerate the types of computer games, which are divided in two groups: role playing game (RPG) and non-role playing game. The RPG is more attractive, has bigger speed of addiction, and has an influence of psychic. Then we mention the mechanism of becoming an addict and all the stages. Finally we come with an appeal for parents.