Modern casino slot machines are controlled by computer chips and software, and the winner %s are preprogrammed into the gaming software.
Casino slot machine games have Random Number Generators which are endlessly generating combinations, even when the machine is not active.
Running in sync with the Random Number Generator of the casino one-armed bandit is the pay out percent.
The pay out % controls just how much the slot machine will payout, for e.g. the pay out per cent might be ninety per cent, which means the slot machine will payout ninety per cent of all the wagers played, and the casino will then get to keep ten percent.
This does not imply that for every time you bet 10 credits you will receive nine in return – where’s the fun … thrill in that? Instead, the casino one arm bandit just will not pay out for a little while, and then suddenly start up a hot streak and you might catch the big jackpot prize.
The pay out percentages will vary between the alternate games and just a few of the very common casinos, e.g. Golden Online Casino, which offers a payout rate of up to ninety-five per cent!
Thus, in essence, the one-armed bandit takes all the currency played into it and pays it out to a few privileged winners. The casino only gets to keep a averagely tiny percent of all the bets placed.
The casino slot software controls every part of the machine, from the blinking lights to the circulating of the reels.
When you hit spin on the slot machine, a combination is formed by the RNG which corresponds to the pictures on the reel.