Yes, you can. Many online casinos offer the free version of Zappit Blackjack, which is essentially the same game, but you can use the fake credits provided by the casino to play it. Even though this is a great way to test various features, you won’t receive real-money payouts. Nevertheless, playing for free is almost as fun as playing for real money, and you can explore the zap feature without spending a dime before switching to real money play.