The payout percentage for these games are established by the rules of the game.roulette rules and tips LOTTERY GAMBLING LOSSES We have therefore developed a simple to use guide that will help you locate the best US online real money casinos, gambling games and slots. Our experts. US players can play for real money or give an exciting casino game a try for practice . A Better Range of Games: That's where gambling online and betting on. To start an online gaming business, you need the following: a professional iGaming software; a gambling licence; a merchant account; a dedicated server.