You can play real money Sit and Go poker tournaments at PokerStars across a wide range of formats, variants, and buy-ins. These tournaments start when the correct number of players have bought in, from only two up to 180.
Desktop client: To make a deposit, login to your account and click the 'Cashier' button. Next, click on the 'Stars Transfer' button and follow the on-screen instructions. App users: To make a deposit, login to your account, select the Real Money tab in the lobby, then tap on the 'Deposit' button.
