A Binance casino?
Now this is a first.
Binance as much as know is an exchange and doesn't run a Casino and if they did it should have been promoted in their exchange or X handle.
It's likely a scam, hopefully you didn't loss anything .
Once you see a site or link with a popular platform name, make sure you engage in proper research before even clicking or inputing any data or possible.
It's likely a Scam.
If I remember well, op did not mention depositing and playing in this casino, he possibly just come across the casino and he decided to post about it here, hoping the get the bitcointalk gambling community's feedback on what we all think about the casino.
If this be the case real care actual case, then should count himself lucky for having the wisdom to first of all ask about this casino on this forum before deciding what his line of action will be.
Like I touched in my previous comment on this thread, and like you have said too, if Binance was running a casino, the casino will be known in the whole world same way Binance exchange is known, and from time to time, Binance will always talk about the casino from their official accounts, but since there is no such thing so far, it's clear that the casino is a scam, and was possibly trying to ride on the popularity and reputation of binance to scam unsuspecting victims.