At the present time slots can be divided into two large groups:
mechanical slots – those one-armed bandits are often with a handle to run the game, they usually have three barrels and from one to five gaming lines. For a long time they could be equally run by a button, at the present time they are not so popular.
video slots are a more modern kind of slots, where for the images of drums a screen is used. In video slots may be up to five drums and up to fifty lines for a game. Thanks to the use of computer technologies, in such slot machines the gambler is given a wide set of additional features that enhance the interest in the game, such as bonus games and bonus rounds, “scattered” symbols, wild symbols, and so forth.
A greater role in the choice of slot machines by the gambler plays the presence of accumulative jackpots. Slot machines, with total cumulative system, are called progressive. From slot machines that are in the network a certain percentage is sent to the prize fund, which is the progressive jackpot. To win the jackpot, as a rule, a gambler must catch the highest combination of symbols on the biggest bet.
In addition, in the era of the development of the internet slot games in the online casino got wide spread.
Slot machines have a different number of barrels and gaming lines. All the buttons on the slot machine have constant meanings, although there are exceptions. As a rule, it is written in the English language on each button what action will be executed after it is pressed:
Spin – button of starting the game.
Bet – a display of the gambler’s bet, at which he is going to play.
N lines – a game of N lines.
Line 1, Line 2, Line 3, … – gives the gambler an opportunity to choose the game lines himself.
In modern slot machines there are usually 9 (1-3-5-7-9) or 20 (1-5-10-15-20) lines, where the first 10 most often have a central symmetry, and the following of 10 – axis. The slots in which there are to 100 playing lines are rare. Sometimes positions on the drum are sold to the gambler, which in box 5*3 corresponds to the game from 5 up to 243 combinations.
Collect – the fixation of the game and deposit of the gambler for subsequent withdrawals.
Bet one – game on a single bet.
Bet x2 – game at a bet, multiplied by two.
Bet x3 – game at a bet, multiplied by three.
Bet x5 – game at a bet, multiplied by five.
(in modern slot machines there is usually a maximum multiplication of the bet x10 or х100).
Bet Max – display of the maximum rate, to which the slot machine is calculated. In some machines, pressing the button Bet Max launches drums at the maximum bet.
Last bet – is the opportunity to repeat the previous bet.
Slot machines have special symbols on the screen of the machine:
Credit – the gambler’s account in conventional units.
Win – a winning combination has fallen out.
Paid – a total payout.
All slot machines have a payout table of symbols, so a gambler can always know what he should get in case these or those combinations fall out.
To start the game, the gambler should make a bet and spin the barrels. If on winning line after stopping of barrels a winning combination falls out, the winnings will be determined by the table of winnings.
Traditional symbols for slot machines are images of fruit, cherries, the bell and the figure “7”. The greatest gain was usually appointed when the combination of all the sevens or the bells on the same line fell out, the lowest in case of falling out of a roll of cherries. At that, very often, the loss of at least one image of the cherry on the gaming line meant a “zero-winning”-that is, the return of the bet to the gambler’s account.
Later the images of gold ingots, in some machines, the black rectangles with the words “BAR” were added to them. The symbols depicted a different number of ingots – often only one, two or three, sometimes – more. So any combination of images of the ingots on the one gaming line is winning and its rank is defined by an image with the least number of ingots. For example, for three drums the combination “3”-“1”-“3” is equivalent to a combination of “1”-“1”-“1”.
After the appearance of the 5-barrel machines with large barrels images with the digit “2” – “9” and the number “10”, and the letters of playing cards – “J”, “Q”, “K”, “A” were added to the figure of “7”. The poker combinations were added to the table of winnings. Sometimes there is also a “Joker”.