The popularity of social network websites has motivated not only how people interact but also greatly influenced the gaming industry. Users only need to use social net- work websites to publish game information and play games, so the convenience of social network games has become a reason players choose them. Popular social net- work games even have millions of players [6][7].
In addition, since social network games are created on social network websites, compared to multiperson online games, in which users mostly encounter strangers, in social network games most players are friends in the social network [8], so interacting with friends in games, like working together in missions, or competing with each other can better elevate the fun of gaming. Social network games generally have the following characteristics: 1) Free 2) Asynchronous 3) Play limit