Nowadays, slot machines are one of the most popular casino game-type, and many of you will probably be surprised to hear that it was invented almost 2 centuries ago! It was invented by Charles Fey from San Francisco, who presented his first Liberty Bell slot machine in 1887. The original machine had three reels and each reel had ten symbols printed on it. The spirit of the first slot machine can be felt in today’s games, as symbols he used involved horseshoes, spades, diamonds, hearts and bells. The name itself was derived from the slot for inserting the coins and retrieving coins.

The aim of the slot machine game is to collect a line of the same or different symbols, where the combination of the most common symbols is paid the lowest and the combination of the rarest symbols is paid the best. Today there are slot games that have as much as 7 reels and up to even a 1000 paylines. The graphics and payline combinations are extremely enhanced when compared to the prototype and there’s a vast array of game developers whose game portfolio satisfies all tastes.

Most of the slot machines have a progressive jackpot - it grows as long as it is not hit. Because of that many players wait until the jackpot value is big enough to enter the game. But before doing that, you should carefully read a particular casino’s rules, as sometimes progressive jackpots are not paid out unless the maximum bet was placed. Playing big amounts provides best payouts, but also big losses, so remember to set your own rules for each game and decide how much you can bet.