The main purpose of this study is to explore the correlations among play motivation, involvement, and leisure benefit for videogames, using videogame addiction as the mediating variable. This study primarily collects 1,146 valid samples, using the Multiple Group SEM analysis to verify the path relationships of the research model and mediating effects. Research results show that in videogames, play motivation has a positive effect on leisure involvement and leisure benefit, involvement with videogames also has a positive influence on leisure benefit; this shows that involvement has a partial mediating effect. In addition, videogame addiction would mediate ”the path relationship between play motivation and leisure benefit.”