| Repetitive use of internet-based games, often with other players, that leads to significant issues with functioning. Five of the following criteria must be met within 1 year: | |
| A. Preoccupation or obsession with internet games. | |
| B. Withdrawal symptoms when not playing internet games. | |
| C. A build-up of tolerance – more time needs to be spent playing the games. | |
| D. The person has tried to stop or curb playing internet games, but has failed to do so. | |
| E. The person has had a loss of interest in other life activities, such as hobbies. | |
| F. The person has had continued overuse of internet games even with the knowledge of how much they impact a person’s life. | |
| G. The person lied to others about his or her internet game usage. | |
| H. The person uses internet games to relieve anxiety or guilt – it is a way to escape. | |
| I. The person has lost or put at risk an opportunity or relationship because of internet games. |