Your goal is to draw cards that total 21, or come closer to 21 than the dealer without going over. The dealer and each player start with two cards. The dealer's first card faces up, the second faces down. Face cards each count as 10, Aces count as 1 or 11, all others count at face value.

Players who receive a two-card combination equaling 21, such as a 10 and Ace, have what is known as blackjack.

They are truly supposed to be random. But it is said that some casinos program the machines with less probability of jackpots. So what people like you and me do is play at a casino which guarantees 100% fair game play.

Whether we are talking about physical or online slot machines, they all rely on Random Number Generator (RNG) technology to ensure fairness. The RNG is a sophisticated algorithm that generates random sequences of numbers, which determine the outcome of each spin of the reels on slot machines.