None, the only place to buy it at the moment is the casino's homepage, also same place to sell (both with quite high slippage and fee). As for how this project is going right now and how strange it started I wouldn't advise you to buy it though.
Some $BC "whale" sold so much within 20min yesterday he himself crashed the price for over 50% and once this started it wetn from 0.015 to 0.0011 real quick. There are no securities in place to prevent this from happening over and over again, so there is a high risk involved when dealing with this token.