Revenue is down at Maryland casinos. The state Lottery and Gaming agency reports the state’s six casinos brought in 163-million dollars in April. That’s a year-over-year decrease of eleven-point-six-million dollars, or six-point-six-percent. Hollywood Casino Perryville in Cecil County was the only casino to post an increase in revenue. The six casinos contributed more than 69-million dollars to the state, which was three-point-six-percent less than at the same time last year.