For most casino gamblers, there reall is only one game to play – blackjack. With a house edge of around 0.5% it allows players the best chance of coming out ahead, particularly if you throw in a bit of card counting. However, not all blackjack games are alike. Depending on the rules adopted by the casino, the house edge can vary from almost 0% to as high as 2% and above. In a land-based casino, you’re stuck with the rules of the house, but online you can, and should, shop around to find the variation that suits you. Here, then, are the key pointers to look out for.