Slot machines are the most commonly game played at both land based casinos and online ones.

This popular game was invented in 1891 in New York, and since that time, even though its appearance changed and improved a lot, the basic rules have kept unchanged.

During the last years, a new version of this game, the progressive slot machines have become extremely popular, especially at the online casinos. The reason behind their success is that their jackpot keeps increasing until there is a winner, and that is why everybody wants to try their luck and maybe become one of the lucky winners of a life change prize.