MotorCity Casino's revenue was up 96.8% to $438.3 million. MGM Grand Detroit's revenue rose 115.5% to $554 million. Year-over-year gaming revenue for slots and table games rose 104.2% to $1.27 billion. Table Games and Slot Revenue and Taxes - 2021 Slots generated 77% of revenue at $998.8 million, table games provided 21% of revenue at $268 million and retail sports betting added 2% of revenue at $26.95 million.īy comparison, the casinos produced nearly $639 million in aggregate revenue in 2020 and a record $1.454 billion in 2019. Detroit, January 11, 2022 - The three Detroit casinos reported $1.294 billion yearly revenue in 2021.