If you wish, you can choose the Allow Double option in the Options menu of the game. It is on by default. This toggles the doubling option on or off. If this option is not turned on the game will not allow you to double on a winning hand!

The doubling option gives you a chance to further increase your winnings! After completing a winning hand you will be given the chance to double the payout or to collect your winnings. The Double and Collect buttons will be highlighted. To collect your winnings, click the Collect button. The game will then be finished and you will have a chance to play again. If you want to try and win even more, click the Double button. 

When you click the Double button, the cards will be removed from the screen and a further five cards will replace them. The dealer's card will be exposed, while the remaining four cards will be left face down. Select one of the ‘face down’ cards by clicking on it. The four cards will flip over to reveal themselves. The card you selected will be highlighted. If the card you chose has a denomination greater than that of the dealer's card, you will win an amount double that of your original payout. You will then be given the chance to double your payout even further or to collect your winnings. If your chosen card is of an equal denomination, it is a tie, and you will have a chance to collect your original winnings or to double up. If the card you chose is of a lesser denomination, you lose and will not receive any payout.

Each doubling action gives you the chance to double the current value of the payout at the risk of receiving no payout at all, if you lose. You will not be given the option of doubling if your current payout equals or exceeds the Casino’s limit on doubling. To determine what the doubling limit is please consult the Casino’s web page.

If you are disconnected from the Casino or shut down the Casino software before choosing your card the Casino will automatically randomly select a card for you. If you are using a Real Account you will able to see the amount won (or lost) by this random decision and the cards of your original winning hand when you return to the game. If you are using a Guest Account your Credit balance will have been adjusted but the cards will not be displayed.