Perhaps one of the reasons behind the phenomenal success of slot machines is its universal appeal. Unlike other casino slot online, anybody can play the slot machine at his own pace. Moreover, the game does not require any skills. As such, for as long as you understand how the game is played, you can immediately choose any machine that you like. However, not all players know the odds of the game. For most instances, the players are clueless about the payout rate for most casino slots. Furthermore, many people do not also know how to determine the slots that they can play. Thus, while logically most people want to win at slot machines, they end up losing instead. This is why it is very important that you know how to play the game and how to choose the slot machine before you actually start playing on one.There are different types of slot machines like the multiplier and the buy-a-pay. It is vital that you are aware of each one of these slots so that you would be able to determine which slot is best for you.Multiplier. This machine is one of the simplest casino slots where it assigns a payout for a certain symbol. The number of coins played actually multiplies it. Thus, if the machine pays out 5 coins for three lemons, it would double up for the second coin, and triple up for the third coin. One of the attractive features of the multiplier is that it does not penalize you for not playing the maximum number of coins. Thus, with this slot, you can play one coin at a time if you like.Buy-a-Pay. This is probably the most misunderstood casino slot machine. Unlike the multiplier, each coin activates a different payout. In effect, in order to receive the largest jackpot, you need the maximum coins. In the Sizzlin 7’s machines, the machine will only pay on bars, cherries, and sevens. Thus, if you play one coin only, you can only collect on the cherries. However, if you play two coins, you can collect on the cherries and the bars. But, if you want to collect on the Sizzlin 7’s, you need all three coins. Sadly, if you hit the jackpot with just one coin, you will actually not win anything. Therefore, if you don’t intend to play maximum coins, never play in these slot machines.