Regarding the list posted by OP. CryptoGames is the only service from it which is by me in my gambling routine because I like the option of Minesweeper to play on.
Yes, CryptoGames is a long lasting and respectable casino site. Speaking of the list of gambling sites with internal exchange from the OP's post, I had a positive experience also with: Rollbit.com, Freebitco.in, Duelbits.com, Stake.com ... however, all these sites fall under
Special Cases, therefore CryptoGames is the only one to offer an internal cryptocurrency exchange I am personally familiar with.