European wheel: 37 pockets, one zero. Straight number pays 35 to 1, dozens and columns 2 to 1, other outside bets 1 to 1. Zero loses all outside bets.
Your chips are saved in this browser and shared with the main menu. If you go broke, the only way back is a loan on the main menu, and it comes with debt. While you owe money, any profit from a win goes to the bank first (you always get your stake back).