Usually, there are two ways of playing at US online casinos. First, players can download the software on their computers and access the online casino and its games by double clicking on an icon created on their desktops. Second, they can use the Flash casino service and load the games directly from their browser. Flash casinos, also known as no download casinos, are ideal for US residents who use MAC computers or public computers for gambling. If you choose to play without downloading any software, you will still be required to complete an online registration form and create a new account at the online casino.