We’d be wasting your time if we attempted to categorize all of the types of slot machines. Every casino offers a wide range of slots to attract gamblers. Slots come in hundreds of types and variations, from single line and 3 line, to 3 or 5 reel, and from bonus games to progressives, to mention just some.
It makes more sense to look at the common characteristics of slot machines.
Range of Reels
You will find usually 3 or 5 reels in a slot machine. Early slots had only three reels. We remember them as “classic” or “regular” machines.
Today, 5 reel slots are common, and they generally feature more than one payline (see below).
Number of Rows
Slots machines feature one, two or several horizontal rows marking positions on the vertical reels.
Extra rows, usually one above and one below the payout display, tempt players with a view of how narrowly they might have missed a win.
Number of Pay Lines
There can be one or even more paylines crossing the reels. It’s common to see 3, 5, 9, 15 and more recently even 20 lines. For a winning combination, the designated symbols must fall on a line, often the central horizontal line.
There is only one payline crossing the three reels on a classic machine. You may bet one or even more coins per spin but only the center line pays, and increasing your bet will not boost your probability of winning.
On a slot with more than one payline, you may bring additional lines into play by upping the number of coins you play. You should not have to bet on every available payline.
Suppose you’re on a 3 line slot and you are necessary to insert one coin to play the center line, a second coin to play the line above center as well as a third coin to play the line below center. If you now bet only one coin and the reels display a winning combination on the line above or below the center, you do not win anything because you played too few coins.
By offering diagonal matches, slots with 5 reels may have from 5 to twenty paylines.
Denomination of one coin
You can find slot machines which accept denominations from as little as 5 cents to $5. High roller slots may accept “coins” with a denomination of around $500, although they are few and far between. Some quality online casino (have a peek here) casinos have special limits setup for their big players to accommodate large bets..
Range of coins that will be played
The maximum bet on classic slots will likely be three coins, but you will find some slots that accept a 2-coin maximum bet. Again, video slots have changed this characteristic dramatically, with some multi line video slots now accepting up to 10 coins per line.