OP just hired a bunch of users who can push the thread up every 10 minutes, its a sign of desperation for a project with no roadmap and whitepaper. This thread should be moved to Announcement section because obviously the project isn't yet up and they are about to do an ICO/IEO. Not yet a working casino.
Absolutely any casino claims that it is transparent and honest. How can I check this ?
The casino is always in the black , this has long been proven, so why would they cheat you ? 
Not all casinos are transparent though. Crybet hasn't yet provided anything, that's transparency issue.