Crypto-games as mentioned is the only site that accepts Monero for a long time, so did 999dice until recently it was taken off because of network issues with all those Monero forks. Until shapeshift changed also all sites using shapeshift you could use. duckdice uses it but they had some trust issues though people are still playing there. Same as fortunejack, but also operational still.

Problem with non clearnet casinos is they don't have good reputation. I would stick to the major clearnet sites, which you can still play through Tor.