When you cannot play blackjack for bonus, Casino War provides a good alternative.

Casino War is probably the easiest casino game of all. The dealer and you get 1-1 card. The winner is who has a higher value of cards.

The payment is of a 1:1 ratio that means, if you win you win the double value of your bet and if you lose, you lose your bet.

The game becomes a bit more exciting when the two cards have the same value. In this case you get a choice: you can give up (Surrender button) and you lose half of the original bet, or you can chose the war when the original bet should be doubled (i.e., put it once again) and you get 1-1 cards. The winner is who has a higher value of cards. But in this case, if you win, your prize is not twice of the doubled bet, you get the initial bet only.

If you lose the war, however, then you lose our double bet. If the war is tied, then you win. Some casinos pay extra bonus for the second tie.
Casino War house advantage is generating from those cases when the first two cards are the same. If you declare tie in this case and you could get your original bet back, the game would be zero-sum with 0 home advantage. The options that you can get here are expected to be all negative. If you surrender, you will surely lose half of the original bet. If you go for war, then the rules give some benefits to you as you are going to win in case of another tie. So, winning the war is going to be 53.85%. Thus, in case of war, it’s more that 50% chance that you can keep your plus one bet, so the optimal strategy is the war!
In spite of this, the war has a negative expected value because if you lose, you lose a double bet, while if you win, you win only one bet. If you always choose the war, you can reduce the house advantage with about 1%, compare to the permanent surrender!

The price of this is that your deviation is going to be bigger, but if you play with small stakes, you have to play enough games to make the expected value. For a long time, you should not take deviation into account but you should take the expected value. You should try to play small stakes and by the end of playing your bonus, your balance should be dominated by the effect of the expected value and not by the effect of the deviation.

In addition to the usual rules (6 decks of cards, no extra payment for the second tie), the house advantage is 2.68%. With a bonus equals to 1 bet, for the second tie, the house advantage is reduced to 2.17%. With a bonus equals to 2 bets, the house advantage is reduced to 1.71%, but this occurs very rarely.
Deviation of Casino War falls into the largely tolerable category. Playing six decks, it is 1.05. This is pretty much the same as in case of Black Jack.

IDEAL STRATEGY

You always have to opt for war. Doing this, you can achieve optimal play in Casino War in long term.
Try Casino War game free as courtesy of Bet365 Casino. If you like it, play with real money in the Bet365 Casino!