1. Preoccupation with Internet games. (The individual thinks about previous gaming
activity or anticipates playing the next game; Internet gaming becomes the dominant
activity in daily life).
Note:  This disorder is distinct from Internet gambling, which is included under gam-
bling disorder. 
2. Withdrawal symptoms when Internet gami ng is taken away. (These symptoms are typ-
ically described as irritability, anxiety, or sadness, but there are no physical signs of
pharmacological withdrawal.)
3. Tolerance—the need to spend increasing amounts of time engaged in Internet games.
4. Unsuccessful attempts to control the participation in Internet games.
5. Loss of interests in previous hobbies and entertainment as a result of, and with the ex-
ception of, Internet games. 
6. Continued excessive use of Internet games despite knowledge of psychosocial problems.
7. Has deceived family members, therapists, or others regarding the amount of Internet
gaming.
8. Use of Internet games to escape or relieve a negative mood (e.g., feelings of helpless-
ness, guilt, anxiety).
9. Has jeopardized or lost a significant relationship, job, or educational or career oppor-
tunity because of participation in Internet games.