pool 8 snooker

Hello ‌ i can design billiards or chess or online 2-player games for two people to play together online, or with friends via ID search or with a random user. And money is invested in each game and each user wins his money to that user and 20% of this money is transferred to the site. Can you design how much will it cost me? Deposit money to the site and withdraw from the account of Bitcoin, Atrium and other digital currency sites