Modern casino slot machines are controlled by computer chips and software, and the winning percentages are pre-programmed into the gaming software.
Casino slot machine games have Random Number Generators that are continually generating combos, even when the slot machine is not active.
Running synchronously with the random # generator of the casino slot machine is the pay out rate %.
The pay out % controls how much the one-armed bandit will pay out, for e.g. the pay % may be ninety percent, which means the slot game will pay out ninety percent of all the stakes played, and the casino will then get to keep ten percent.
This doesn’t mean that each time you bet ten credits you will receive nine in return – where is the fun … thrill in that? Instead, the casino slot machine won’t payout for a little while, and then suddenly fire up a hot streak and you might draw the big jackpot.
The pay out percentages will very likely vary between the assorted games and a few of the very favored casinos, for e.g Golden Online Casino, which gives a pay out rate of up to ninety five percent!
This means that, in essence, the slot machine game takes all the currency played into it and pays it out to a number of lucky winners. The casino only gets to keep a fairly minute % of all the odds allotted.
The casino slot software controls every single part of the machine, from the flickering lights to the turning of the reels.
When you hit spin on the slot machine, a combination is formed by the RNG which relates to the pictures on the reel.