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.
Suddenly it looks like after reading the reply someone is very optimistic with the ongoing airdrop as someone might be another whale of BC token
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.
It is still early days and with airdrops such a dump in price is always expected. The main thing is how long the price of the token can sustain itself in these times. The good part is that the token is still not listed on any exchange otherwise the price would have gone down more since those who have spent money to get the airdrop would be more interested in getting the amount they lost trying to qualify.