I don't the the deposit and withdrawal policies in your ToS. What is the minimum withdrawal sum? What is the maximum withdrawal? Are there any additional fixed fees your website takes for withdrawal or a percentage from the transaction value?
I registered, confirmed by email and got the satoshis. I think that 1 minute is too long and it's hard to call dice with many people betting on two options a multiplayer game... There's no interaction between users here, apart from some shitposts in the chat, of course.
I must say it's impressive that you attracted about 50 active users already, so I wish you even more success in the future.
One question, though: what happens if the bet is exactly 5000? Is it like zero in roulette and everyone loses, or what?