If you apply the right strategy, blackjack becomes the casino game with the lowest house edge. Make sure to study blackjack strategy charts before you start playing, or you can test them by playing this popular card game for free in online casinos. Some video poker types also have a very low house edge if you stick to some of the working strategies. Canadian players also have an opportunity to play some of the best online slots that have a high RTP score, which means that the house edge in these games is low. If you add free spins into the equation, you'll get a perfect slot-spinning experience.