With three and possibly four private, big money casinos set to be licensed in New York State by the end of the year, and a plethora of new glitzy casinos set to open or already open in Ohio, Pennsylvania, Maryland, Massachussets and Rhode Island, the modest offerings on the gaming floor of the Seneca Niagara Casino here may be starting to seem a little shopworn.Ĭhicago-based Rush Street Gaming plans to build the $300 million Rivers Casino & Resort at Mohawk Harbor in Schenectady.