Mich. Comp. Laws § 750.310c

Sec. 310c. (1) The chapter does not prohibit a social media internet game from rewarding a player, as a result of chance or uncertain event, with either 1 or more free plays or an extended period of playing time. (2) As used in this section, "social media internet game" means a game offered over the internet or on a telephone or other mobile device. Social media internet game does not include fantasy sports.