It's Opening Day at the del Lago Resort and Casino near Thruway Exit 41.
Developer Tom Wilmot says Seneca County was behind the project from the beginning.
Governor Cuomo helped cut the ribbon this morning.
Del Lago has 2,000 slot machine and 89 gaming tables. It also has restaurants and bars, and a 2,400 seat theater.
The adjacent hotel and spa will open this summer.