According to some psychologists*, a distinction must be made between the addictive dimension of a game and its addictive potential. A game's addictive potential is ultimately linked to its quality: the player's immersion in the game world, and the logic of progression that makes him or her want to move on and keep playing. Games like Candy Crush are addictive because, in addition to their quality (rapid progression, short games), the fact that they are played on mobile phones makes them easy to access and interferes with the game's fun. that they are played on cell phones, making them easier to access and less intrusive on the player's daily routine. On the other hand, the addictive potential of a game is not linked to its quality, but more to the infinite dimension of the content offered to the player, as well as to farming, i.e. the time spent to increase the power of one's avatar. Online games (such as World of Warcraft, Dofus and League of Legends) are the most addictive: they encourage players to compete with others. What's more, to encourage players to play more, some have recently introduced an online leaderboard, reset every two weeks, encouraging them to keep playing to maintain their ranking. These are all addictive tricks used by game designers. This raises the question of the social responsibility of these designers.
*in particular, Michael Storae (psychologist and psychoanalyst, co-founder of the Observatoire des Mondes Numériques en Sciences Humaines)

For further information, we recommend that you consult :

- Institut national du Sommeil et de la Vigilance website
- The Morphée network website (health network dedicated to the management of chronic sleep disorders)
- The ANSES website (Agence nationale de sécurité sanitaire de l'alimentation, de l'environnement et du travail)
- The Santé Publique France website, and its documents on sleep