Modern casino slot machines are controlled by a computer, and the win %s are pre-programmed into the game software.
Casino slot machines have Random Number Generators that are eternally generating combinations, even when the machine is not being played.
Running concurrently with the Random Number Generator of the casino slot machine is the pay out rate percentage.
The pay out percentage controls how much the slot machine will pay out, for e.g. the pay out % might be ninety per cent, which means the slot machine game will pay out ninety per cent of all the bets played, and the casino will then get to keep 10 percent.
This doesn’t mean that each and every time you bet ten credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino slot just won’t pay out for a little while, and then suddenly start up a hot streak and you might hit a big jackpot prize.
The pay out percentages will definitely vary between the alternate games and a few of the most popular casinos, for example Golden Online Casino, which offers a payout rate of up to ninety-five %!
So, in essence, the slot machine game takes all the funds played into it and pays it out to a few fortunate winners. The casino only gets to keep a considerably tiny % of all the plays placed.
The casino slot software controls any part of the machine, from the dazzling lights to the revolving of the reels.
When you hit spin on the one-armed bandit, a combination is set up by the RNG which is linked to the pictures on the reel.