To explore the relationship between competition, cooperation, flow experience and game addiction in online games, a total of 465 male college students took part in this study. The results of correlation analysis revealed that online game addiction was significantly positively related to competition, cooperation and flow experience in online games. Structural equation modeling analysis showed that competition in online games could not only positively influence online game addiction directly, but also influence it through the mediation effect of flow experience; coop- eration in online games did...