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Modern casino slot machine games are controlled by computer chips and software, and the winning %s are pre-programmed into the gaming software.

Casino one armed bandits have RNGs that are constantly generating combinations, even when the machine is not active.

Running side by side with the RNG of the casino slot machine game is the payout rate percentage.

The pay out % controls how much the slot machine will pay out, for example the payout percentage could be 90%, which means the one arm bandit will payout ninety percent of all the wagers played, … the casino gets to keep ten per cent.

This really does not mean that for every time you bet 10 credits you will receive nine in return – where’s the fun and thrill in that? Instead, the casino one arm bandit will not payout for a while, and then suddenly fire up a hot streak and you might draw the big jackpot.

The payoff percentages will tend to vary between the different games and some of the very acclaimed casinos, like Golden Online Casino, which hands out a cash payment of up to ninety five percent!

So, in essence, the slot machine game takes all the money played into it and pays it out to a couple of fortunate winners. The casino only gets to keep a considerably small percent of all the bets put out.

The casino slot machine software controls every part of the machine, from the blinking lights to the revolving of the reels.

When you hit spin on the slot machine, a combination is put together by the RNG which corresponds to the pictures on the reel.