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Modern casino Slots are controlled by computer software, and the win percentages are pre-programmed into the game software.

Casino one armed bandits have Random Number Generators that are eternally generating combinations, even when the slot machine game is not being played.

Running concurrently with the RNG of the casino slot machine game is the pay out percentage.

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

This does not mean that for every time you bet 10 credits you will receive 9 in return – where is the fun and excitement in that? Instead, the casino one arm bandit just will not pay out for a bit, and then suddenly jump on a hot streak and you might hit a big jackpot.

The pay off %s most likely will vary between the alternate games and some of the notably acclaimed casinos, e.g. Golden Online Casino, which offers a payout rate of up to ninety-five percent!

So, in essence, the one-armed bandit takes all the money played into it and pays it out to a handful of fortunate winners. The casino only gets to keep a generally small per cent of all the wagers allotted.

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

When you hit spin on the slot machine, a combination is formed by the RNG which is linked to the pictures on the reel.