The Choctaws had cut back the operation of Golden Moon in 2009 to weekends only, hit by the recession and increased competition. In 2010, the tribe closed Golden Moon altogether, replacing slot machines and poker tables with a concert venue.
The original Choctaw casino - Silver Star - remained in operation. The casinos have also renovated their nearly 1,100-hotel rooms.
The tribe borrowed the money for the renovation, fueled by increased profitability that followed new managers in 2012. The Choctaws hope the second casino will spur gamblers to stay longer.