If a player's hand equals 21, they get a blackjack and receive 3:2 on their bet. No, not all online casinos offer play for fun blackjack games. Some online casinos more games like chumba casino do not allow the play for fun feature at all, instead, they require online players to register for an account with them and make a real money deposit first before trying out the blackjack games available. Other online casinos require players to register an account with them first or log in to an existing account to enjoy playing free blackjack games on a limited number of credits. But some casinos like 888 Casino and Netbet Casino do not require players to register an account with them or log into a user account to play free blackjack. Instead, they can directly play free online blackjack by launching the game on the casino’s website.