In most cases, video games provide entertainment and social and psychological benefits. Involvement in video games can become problematic and associated with functional impairment for individuals characterized by psychosocial, environmental or psychopathological vulnerabilities. The WHO recently decided to include gaming disorder in ICD-11. The definition of gaming disorder is oriented towards consequences and functional impact, in order to avoid over-pathologizing of healthy gaming patterns. The public health issues of video game disorder have found a promising response through the recognition of this disorder by the WHO and the common definition offered by the ICD-11. The treatment of this disorder, essentially psychotherapeutic, requires taking into account the underlying psychological processes.