The reason for this is reduced occurrence of ties. RTG and Chartwell softwares use a single deck which reduces the house edge to 2.28%. With the standard rules explained above the house edge is 2.68%. This reduces the house edge by ~1% compared to surrendering on ties. The optimal strategy is to always go to war on ties. Both Microgaming and Boss Media softwares have additional payout for the second tie so that in this situation player wins 1:1 on the whole doubled bet. However, if player loses at the war, he loses the whole doubled bet, but if he wins, he only wins the original bet and the remaining part of the bet is returned.

If player goes to war, both player and dealer are dealt another card and the winner is the one who has the higher card.

If the two cards are tied, player has two options: either surrender and lose half of his bet or go to war and double his bet. Aces have the highest value and 2s the lowest. If player’s card is higher, player wins, if it is lower, player loses. The player and dealer are dealt a single card. Casino War is a very simple coin flip type of a casino card game offered by almost all online casino softwares.

Casino war card game