The purpose of the game is to get to twenty one. You play successive rounds against the house (the dealer). And, at the end of each round, the winner is the one who is closest without going over twenty one. You may request as many cards as you wish provided that you do not exceed twenty one. After you have received all the cards that you wish, you stand and the dealer takes over. The dealer must draw additional cards until he has seventeen or higher. The player gets paid off at two to one if he wins. That is, the player wins two units for every one unit that is bet. However, he forfeits his bet if he loses.