Do you mean this nitrogen sports
https://bitcointalk.org/index.php?action=trust;u=88706??Hmmmmmm. So far only few Bitcoin only poker site available and if there still more, they will surely accept other currency in the future. But you can add on your list the
https://roundercasino.com, They only accept BTC currency but they already announced that they will add litecoin and dogecoin soon so I don't know if it's still worth it to add on your list knowing that it will update soon.
