The ultimate purpose of producing game is to make successful sale as making players to be fun. We have to identify fun factors of game and analyze player activities more detail to make fun game. In this paper, we compare game fun factors and select the most detailed one of them and then computed weight factors with AHP method. Based on survey of game players of the selected fun factors, we quantified satisfaction of game fun factors. The result of this paper can be used for assessment of game fun satisfaction and establish game development strategy to implement fun factors according to game genre.