The players and the dealer get two cards each. The object of Blackjack is to reach 21 without going over (bust). The Ace can be used as either 1 or 11. King, Queen and Jack equal 10. All other cards are worth their face value (2 to 10).

The player may take as many cards as he wishes, until reaching 21. If the player takes a card that puts him over 21 (a "bust"), he loses the hand and chips. A winning hand adds up to more than the dealer's hand, without going bust.
In a traditional blackjack game, a player wins a hand when either the dealer busts or when the player has a higher hand value than the dealer. In Get21's Blackjack tournaments, the ultimate winner is the player with the most chips at the end of the final level.

In single-table tournaments, the winner wins the entire “jackpot,” which is the total amount of buy-ins paid by players registered to the tournament. For example, if the buy-in fee is $20 for a single-table Sit & Go Tournament with 5 players, the winning jackpot is $100.
In multi-table tournaments, there is a payout structure that awards a percentage of the prize pool to each player who finishes in an indicated position. Therefore, the total pot is divided among more than one winner.