There are many types of Slot Machines in today's Casinos. From the first 3 reel “one armed bandit”, Slot Machine manufacturers have come a long way. Slot machine types have broaden their range in a wide spread, expanding the 3 reel classic Slot machines to 5 reel multi line Slots Video Poker games and the more recent progressive Slot Machines

An important difference in types of Slots appears between reel Slot Machines and Video Slots. One of the main differences between Video Slots and reel Slots is the way payouts are calculated. With reel Slots, the only way to win the maximum jackpot is to play the maximum number of coins. With Video Slots, the fixed payout values are multiplied by the number of coins per line that is being bet. In other words: on a reel Slot, it is to the player's advantage to play with the maximum number of coins available. On video slots, it is recommended to play as many individual lines as possible, but there is no benefit to the player in betting more than one credit per line with regards to calculating the payout amounts.

Some of the most popular types of Video Slot Machines are the Video-Poker games, in which players have to obtain a set of symbols corresponding to a winning Poker hand. There are standard 5-card draw machines, all the way up to 100-card play machines, where you can play 100 hands at a time.

Another important category is the new irruption of Online Slot games. As the Casino industry expanded its operations to the net, one of the first Casino games that was available at Online Casino was the Online Slot, and it continues to be one of the most popular Casino games on the net as well.