We have two options for single deck blackjack games: The New Blackjack, and 21 Blackjack Classic. A 6-5 payout for blackjack removes 1.39% from your expected return. But don’t forget that some casinos will add rules to Single Deck Blackjack to counteract the decreased house edge, such as offering 6-5 payouts for landing a blackjack. Single Deck Blackjackįewer decks mean a decreased house edge, so if you have the opportunity to play Single Deck Blackjack, take it. We have many versions of online blackjack you can play for real money at Ignition Casino or try for free before making the move, including two single deck games, one double deck, two basic six deck, European, Perfect Pairs and Zappit Blackjack.