The original operators of Ohio’s four stand-alone casinos backed a proposed constitutional amendment. Social poker games have always existed, but the house must not profit from the game. The 1970s saw the arrival of the lottery and charity bingo. In 1933, an approved constitutional amendment legalized pari-mutual wagering at racetracks. The minimum legal gambling age in Ohio depends upon the gambling activity: Relevant Legal Statutes on Gambling in Ohio Casino Slots Enthusiasts to improve your slots gambling performance by reviewing your state’s slots gaming industry. I’ve dedicated this series to slot enthusiasts such as yourself by using my State-By-State Online Resource for U.S. Four are stand-alone casinos with table games while seven casinos are pari-mutuel racinos with horse tracks and simulcast betting. Ohio slot machine casino gambling consists of eleven casinos. Introduction to Ohio Slot Machine Casino Gambling