Let this page be your guide to all you need to know to get started at BetMGM Online Casino, as we cover how to get started, claiming the max online casino bonus upon sign up, game selection, and more! BETMGM CASINO APP BetMGM has been a leading online casino in the Wolverine State since launching.īetMGM features a huge library of games, including many exclusive titles, a shared wallet with online poker and BetMGM sportsbook, and a very generous welcome package. MGM Resorts International, owner and operator of MGM Grand Detroit, has brought its world-class casino experience to the virtual world via the online casino brand BetMGM.