Gaming
Gaming Disorder Is About Lost Control and Harm Rather Than Hours Played
Gaming disorder has no hours threshold. The World Health Organization (WHO) defines it by a pattern of behaviour with three features: impaired control over gaming, gaming taking priority over other interests and daily activities, and gaming that continues or escalates despite negative consequences. The pattern must be severe enough to impair a person’s functioning, and it would normally have been evident for at least 12 months. No number of hours appears anywhere in that definition, and no number of hours can stand in for it.
This post sets the criteria out in a table, shows what each one excludes, and rules on two points where the wording is often misread: the part hours play, and what the 12 months means. It is general information, not a diagnosis, and it cannot say whether a particular person has gaming disorder. WHO notes that studies suggest the condition affects only a small proportion of people who game, so the useful question is not whether someone plays a lot. It is whether control, priorities and wellbeing have shifted. Heavy gaming that falls short of the definition can still cost sleep, school and friendships, and a parent can act on that without waiting for a label.
What the WHO definition requires
WHO’s questions and answers on the topic, published on 22 October 2020, describe gaming disorder in the eleventh revision of the International Classification of Diseases (ICD-11) as a pattern of gaming behaviour, digital or video, marked by three features. The first is impaired control. The second is increasing priority given to gaming, so that it takes precedence over other life interests and daily activities. The third is continuation or escalation of gaming despite negative consequences.
The pattern must be severe enough to result in significant impairment in personal, family, social, educational, occupational or other important areas of functioning. WHO says it would normally have been evident for at least 12 months.
Three points follow from that wording. The features operate as a set, so a person who shows one of them and none of the others does not meet the definition. Impairment is written into the definition rather than left for the reader to infer, which means a person who games a great deal while functioning well in every area is not what the definition describes. And the duration attaches to the whole pattern, not to the number of hours in any one week.
The criteria in one table
The table breaks the definition into six requirements. The middle column follows the WHO criteria as the Australian Journal of General Practice (AJGP) reproduced them in May 2026. The right-hand column is this post’s own plain-English reading of what each row does not mean, and it is not WHO text.
| Requirement | What the WHO text says | What it does not mean |
|---|---|---|
| Impaired control | Difficulty controlling gaming behaviour, for example its onset, frequency, intensity, duration, termination or context | Not a broken house rule on one night; not a number of hours |
| Increasing priority | Gaming takes precedence over other life interests and daily activities | Not a favourite hobby that sits alongside school, sleep and friends |
| Continuation despite harm | Gaming continues or escalates despite negative consequences, for example family conflict, poor school performance or harm to health | Not heavy play with no harm showing |
| Duration | A persistent pattern, continuous or episodic and recurrent, shown over an extended period (for example 12 months); may be briefer (for example 6 months) if symptoms are severe and all other requirements are met | Not a fixed 12-month wait before help is appropriate |
| Impairment | Significant distress or impairment in personal, family, social, educational, occupational or other important areas | Not a bad week or a drop in one test result |
| Not better explained | Not better accounted for by another mental disorder (for example a manic episode) and not due to a substance or medication | Not a reason to ignore low mood or anxiety, which commonly occur alongside it (AJGP names mood disorders, anxiety, ADHD and sleep-wake disorders) |
Read down the right-hand column and the same idea repeats. Every row excludes something that can look like gaming disorder from the outside: a broken house rule, a favourite hobby, heavy play with no harm showing, a bad week. The table works as a filter in both directions. It stops one rough night from being read as a diagnosis, and it stops a pattern that meets every row from being waved away as a phase.
It also helps to read the rows in order. Control and priority describe what the gaming is doing to the person’s choices. Harm and impairment describe what it is costing. Duration says how long the pattern has held. The last row asks whether something else explains the picture better. A reader who can answer yes to the first three, with the cost showing in the fifth, has a pattern worth taking to a clinician. A reader who can answer no to all of them is not describing the pattern the definition covers, however many hours the gaming takes.
The final row has a practical edge as well. Low mood and anxiety commonly occur alongside gaming disorder, and AJGP names mood disorders, anxiety, ADHD and sleep-wake disorders among the conditions that can sit beside it. Low mood is therefore a reason to look further rather than a reason to dismiss either problem, and an overview of the signs of common mental health conditions can help a reader see what else may be present.
Why hours alone cannot settle it
The ICD-11 criteria text, as AJGP reproduces it, mentions time spent gaming only as an example or a feature, never as a test. Onset, frequency, intensity, duration, termination and context are listed as examples of what a person may be unable to control. Further down, gaming may increase in duration or frequency over time, and severe cases include gaming that persists for days at a time without respite. None of these sets a cut-off, and no number of hours is given.
WHO’s own advice to people who game points the same way. It suggests keeping an eye on the time spent, particularly when it comes at the expense of other daily activities, and noticing changes in physical or psychological health and functioning. Time is a prompt to look at the other features rather than a measure of them.
Single-number answers, whatever the figure, therefore have nothing in the definition to stand on. A hypothetical comparison shows why. Take two hypothetical teenagers. Teenager A plays long sessions at weekends, sleeps normally, attends school, sees friends and stops when asked. Teenager B plays fewer hours overall, but has lost sleep, missed school, hides the gaming and cannot cut back despite trying.
Measured by hours, Teenager A looks like the greater concern. Measured against the table, Teenager B shows impaired control, priority over other activities and continued play despite harm, while Teenager A shows none of the three. Whether Teenager B meets the full definition would be for a clinician to judge, including the duration and impairment rows. But the picture is the one the criteria describe, and the weekly hours would never have shown it.
What the 12 months does and does not mean
The duration row is the one most often simplified. Raising Children Network words the test as gaming that has gone on “for at least 12 months”. The ICD-11 criteria text is slightly broader. It says the pattern may be continuous or episodic and recurrent, and that it is shown over an extended period, for example 12 months. Where symptoms and consequences are severe, for example gaming for days at a time without respite or major effects on functioning or health, and all other requirements are met, a diagnosis may be appropriate after a briefer period, for example 6 months.
This post rules for the ICD-11 text. WHO’s own questions and answers say “normally”, which fits it, and the Raising Children page simplifies it. That is a reasonable choice in a guide for parents, but it loses the provision for severe cases.
The more important point is what the period governs. It governs a diagnosis. It is not a waiting period before help is appropriate. Raising Children’s advice to seek professional help turns on whether gaming keeps interfering after a parent has talked with the child, or whether concerns remain. It does not turn on how long the gaming has gone on. A family does not need to wait out a year to ask a GP a question.
When to see a GP and what happens next
Raising Children lists signs worth noticing: withdrawing from friends and family, neglecting usual activities, doing worse at school, often being tired or not sleeping well, hiding or lying about play, talking and thinking a lot about gaming, finding it hard to stop or limit play, and angry or aggressive behaviour when asked to stop. It names a conversation with the child as the first step. If gaming keeps interfering afterwards, or concerns remain, a GP is the starting point, and a GP can refer to a psychologist, counsellor or psychiatrist.
AJGP describes general practice as often the first point of contact and outlines tools a GP can use in an assessment. A validated screening tool can be used, and a self-report diary of weekly gaming and other activities can help. The same article names mood disorders, anxiety, ADHD and sleep-wake disorders as common companions of gaming disorder. On treatment, CBT-based psychotherapy has the strongest evidence base, and there is not enough evidence to recommend medication solely for gaming disorder.
A teenager who would rather not start with the family has other doors. Raising Children names three confidential youth services: headspace, Kids Helpline and ReachOut.
A visit does not need a label to justify it. While the appointment is being arranged, balance in a household’s own habits is a reasonable place to start the conversation, and gentle steps toward a digital detox that fits a normal week covers habits an adult can try in an ordinary week. The assessment described in AJGP can use a diary of weekly gaming and other activities, and a rough record at home of when sleep, school or friendships were affected gives a GP something concrete to work from.
Where the evidence is still unsettled
The diagnosis is real and contested at the edges. ICD-11 recognises gaming disorder. The Diagnostic and Statistical Manual of Mental Disorders (DSM-5) proposes diagnostic criteria for Internet Gaming Disorder but has not yet recognised it as a formal diagnosis (AJGP).
AJGP also summarises a 2023 systematic review that put pooled global prevalence at 5 per cent, with a range from 0.8 to 17 per cent and high heterogeneity between studies. A spread that wide is the reason no single rate should be quoted as settled.
None of this weakens the fair point on the other side. Heavy gaming that falls short of the definition still matters when it costs sleep, school and friendships, and an unsettled label in the research is no reason to wait with a real concern.
When to Ask a GP, Whatever the Hours Say
The test is control, priority and harm, not the clock. Hours can prompt the question, but only the table can answer it, and a clinician is the person to apply the table. A GP visit does not need a label, a year of history or a number of hours behind it. Talk with the young person first, note what has changed in sleep, school and friendships, and book the appointment if the gaming keeps interfering or the concern stays.
Sources: WHO, Addictive behaviours: Gaming disorder, Questions and answers, 22 October 2020 (https://www.who.int/news-room/questions-and-answers/item/addictive-behaviours-gaming-disorder); Hadinata, Saunders and Stephens, Gaming disorder: Practical tips for general practice, Australian Journal of General Practice, May 2026 (https://www1.racgp.org.au/ajgp/2026/may/gaming-disorder); Raising Children Network, Video gaming problems and addiction: 9-18 years (https://raisingchildren.net.au/teens/entertainment-technology/gaming-gambling/video-gaming-problems-addiction-pre-teens-teenagers)
