Total revenue for all gambling operations so far in FY 2023 exceeds $1 billion. 23, 2022, brought in $4.6 million to the state from that date through the end of February. Mobile and online sports betting, which has been available to Marylanders since Nov. In FY 2022, casino revenue, which includes slot machines and table games, brought in $832 million to the state, according to data Maryland Lottery and Gaming provided to the Baltimore Post-Examiner. About 30 years ago when Maryland gambling was largely confined to gaming nights to raise funds for first responders few could have predicted it would turn into a multi-billion dollar industry with six casinos and an aggressively expanding online sports betting market.