Quick answer: The DSM-5 Internet Gaming Disorder criteria list 9 signs: preoccupation with gaming, withdrawal symptoms (irritability, anxiety, sadness when gaming is unavailable), tolerance (needing more play time for the same satisfaction), failed attempts to control gaming, loss of interest in other hobbies, continued gaming despite knowing it's causing problems, hiding gaming from others, gaming to escape negative moods, and jeopardising a significant relationship or opportunity because of gaming. Five or more in a 12-month period meets the research diagnostic threshold for Gaming Disorder.
Gaming disorder occupies an unusual position: it's the most recently recognised formal addiction, and the most contested. Critics argue that "gaming too much" doesn't belong in the same category as alcohol or opioid dependence. The clinical reality is more specific — Gaming Disorder isn't about gaming a lot. It's about gaming compulsively, with loss of control, despite clear functional harm, and being unable to stop.
The WHO formally recognised Gaming Disorder in ICD-11 (2019). The DSM-5 includes Internet Gaming Disorder as a "condition for further study" — meaning it's clinically recognised but awaiting more research before full diagnostic status. For the people who have it, that distinction doesn't matter much.
Here are the 9 signs to check against.
The 9 DSM-5 Signs of Gaming Disorder
Five or more of these in a 12-month period meets the research diagnostic threshold. The WHO ICD-11 criteria require all three of: impaired control, increasing priority given to gaming over other activities, and continuation despite negative consequences — with functional impairment lasting at least 12 months.
Preoccupation with gaming
Gaming is the dominant daily activity. When you're not gaming, you're thinking about it — replaying sessions, planning strategies, waiting until you can game again. This preoccupation intrudes on other activities: conversations feel like interruptions, work tasks feel like obstacles between you and the game. At this stage, gaming has moved from hobby to central organising principle of your day.
Withdrawal symptoms when gaming is unavailable
When you can't game — due to internet outages, device issues, being away from home, or being told to stop — you experience irritability, anxiety, sadness, or restlessness that isn't present when gaming is available. These are genuine psychological withdrawal symptoms produced by the same neurological mechanism as substance withdrawal. They're not bad moods or boredom. They're the brain's conditioned response to the removal of a reward it has organised around.
Tolerance — needing more gaming for the same satisfaction
Two hours used to feel satisfying. Now it takes five. Or you need higher-stakes play, new game releases, or longer sessions to feel the same engagement. This is tolerance — the brain's dopamine response has downregulated to compensate for repeated stimulation, and now requires more input to produce the same effect. It mirrors tolerance in substance addiction precisely.
Unsuccessful attempts to control gaming
You've tried to set limits — "just one more hour," "I'll stop at midnight," "I'm taking a break this week" — and repeatedly failed to hold to them. The attempt-and-fail pattern is the clearest behavioural marker of compulsive use. It's not about discipline. Repeated failed attempts despite genuine intention to stop indicate that the behaviour is no longer fully volitional.
Loss of interest in previous hobbies and activities
Activities that used to bring you pleasure — sport, music, socialising, reading, creative work — have been progressively abandoned or feel flat compared to gaming. This is called anhedonia for non-gaming activities. The dopamine system has been conditioned so heavily around gaming stimulation that other activities no longer compete. It's one of the more insidious signs because it happens gradually and without a clear moment of choice.
Continued gaming despite knowing it's causing problems
You know gaming is affecting your sleep, your grades, your relationships, or your work — and you continue anyway. This is the persistence-despite-consequences criterion that appears across all addiction diagnoses. It's not ignorance; it's inability to stop despite awareness. Many people with gaming disorder have a clear-eyed view of the damage the behaviour is causing and game anyway.
Hiding gaming behaviour or deceiving others about it
Lying about how many hours you game. Gaming late at night after telling someone you're asleep. Minimising session lengths when asked. Hiding gaming-related purchases. Secrecy around behaviour is a reliable indicator that you know it has exceeded acceptable limits and that disclosure would produce a response you want to avoid. Recreational gamers generally don't need to hide anything.
Gaming to escape or relieve negative moods
Using gaming specifically to get away from feelings of helplessness, guilt, anxiety, or depression. Gaming as a primary coping mechanism for emotional distress — not as entertainment or social activity. This is significant because it means gaming is treating an underlying psychological need rather than simply being enjoyed. When that need is large, gaming becomes proportionally harder to moderate.
Jeopardised relationship, job, or educational opportunity
Gaming has put at risk or cost you something significant: a relationship damaged by neglect or arguments about gaming, a job lost or warned about, academic failure or missed educational milestones. The critical element is the "and continued anyway" — not just that consequences occurred, but that gaming continued despite them. This distinguishes disorder from simply making a choice you later regret.
Heavy Gaming vs. Gaming Disorder: The Key Distinction
Hours alone don't define gaming disorder. A professional esports player can game 10 hours a day without any clinical concern if they maintain control, relationships, sleep, and physical health. The distinction is:
- Control: Can you stop when you decide to? Not perfectly every time — but reliably?
- Function: Are you maintaining the things that matter — sleep, relationships, work, physical health?
- Compulsion: Does not gaming produce significant psychological distress?
If control is intact and function is maintained, high hours of gaming is a lifestyle choice. If control is impaired and function is deteriorating, it's disorder regardless of the hours.
Gaming Withdrawal: What Stopping Feels Like
Stopping gaming after disordered use produces genuine psychological symptoms: irritability, anxiety, restlessness, difficulty concentrating, intrusive thoughts about games, low mood, and — especially in younger people — angry outbursts when gaming is restricted or removed.
These typically peak in days 3–7 and diminish over 2–4 weeks. They're not pleasant, but they're manageable with the right approach. For more detail, see our piece on gaming withdrawal symptoms.
What to Do If You Recognise These Signs
Start with honest assessment. The IGDS9-SF (Internet Gaming Disorder Scale Short Form) is a validated 9-question research screen available online. A score above the threshold doesn't mean you're broken; it means the behaviour has crossed into disorder and can be addressed.
Consider Cognitive Behavioural Therapy. CBT adapted for gaming disorder is the most evidence-based treatment available. It addresses the specific cognitive patterns that maintain gaming — particularly the need for achievement, social belonging, and escape that games fulfill — and builds alternative ways to meet those same needs. A psychologist or therapist who works with behavioural addictions is the right referral.
Structured reduction vs. abstinence. Unlike some substance disorders, gaming disorder can often be treated with controlled reduction rather than total abstinence — particularly if gaming has legitimate social or professional dimensions. A therapist can help you determine which approach is right for your situation.
Address what gaming is solving. Gaming disorder rarely exists in isolation. The escapism function (Sign 8) points to an underlying state — depression, anxiety, social difficulty, academic stress — that gaming was managing. Effective recovery addresses both the gaming behaviour and what it was covering.
For parents: Restriction without replacement doesn't work. If you remove gaming, something needs to fill the social connection, achievement, and stress-relief functions it was serving. A family therapist who works with adolescent behavioural addictions can facilitate this more effectively than unilateral parental intervention.
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