I really appreciate your take towards that, most of the gambling sites does not respect privacy as they wanted everyone to fill in the KYC when they start winning and if they cannot do that, they will hold your money and it will be a big hurdle to get past if your prime idea is privacy. Everyone use virtual currency for privacy and majority of the bitcoin base casinos move away from that aspect.
Simulation mode would be a great addition for new players, good luck with your project.