Cant you access coinroyale with your original IP? Is it blocked by your ISP?
I'm from country that ban gambling as well but I can access coinroyale without VPN.
The first thing you can try if it is blocked by ISP is by changing the DNS on your browser (use google or cloudflare).
If it does not work, VPN is the only way to access. Some casino allow VPN as long as you are not from a country which is on the restriction list by the casino.