This is known as the House Edge and it is the way that the casino makes money. They don't have to cheat because except for Blackjack and Video Poker.
Enter any set of blackjack rules from the options below. The house edge under proper basic strategy for these rules is indicated in the box.
It takes some time to learn how to play blackjack, craps, or video poker properly, but they have the lowest house edge. The simplest games, like slot machines.