Rivers Casino in Des Plaines through BetRivers and Argosy Casino Alton, also with Penn, launched in March prior to the COVID-19 shutdowns. 1, and DraftKings at Casino Queen in East St. They are the third and fourth books, respectively, to open in Illinois this month after William Hill launched its sportsbook at Grand Victoria Casino in Elgin on Aug. The two books, operated by Penn National Gaming, increase the number of places sports betting is available in the state of Illinois to six. Two more sportsbooks in the state of Illinois accepted their first legal wagers Thursday as Hollywood Casinos in both Aurora and Joliet launched their newest additions. Caesars Palace Online Casino Bonus CodeĪURORA and JOLIET, Ill.