MotorCity Casino Hotel List of casinos List of casinos in the U.S. The Michigan Gaming Control Board was then formed, and in late 2020 the MGCB issued licenses, giving online casinos the go-ahead to launch at the state of 2021. Join all the best online casino Michigan apps & sites right here and claim top offers from the best names in the industry. On December 20th, 2019, Governor Gretchen Whitmer signed Bill 4311 and legalized online gambling within state lines. 23 of these are Indian casinos and 3 are commercial casinos in DetroitĪs well as legal land-based gambling, those living in or visiting Michigan can now sign up and play at online casinos. The state is home to 26 land-based casinos. Gambling has been legal in Michigan since the 1980s.