https://www.blockchain24.co/the-best-crypto-casinos-in-the-world/
In order to perform a withdrawal of your winning you need to finish the verification procedure.
We will require of you to provide a picture of your ID, and a picture of a proof of address document.
https://www.futurobet.com/verification/
You see, there is a KYC requirement, and people would avoid this site as there are other option where they can stay anonymous.
duckdice.io trust page explains why they are not so popular here. https://bitcointalk.org/index.php?action=trust;u=917361
They have said a couple times already that these negative trust points are due to an old issue with a deposit promo they were running that had some issues and they had to cancel it.. try to read it and give them a try, their site is really amazing, believe me