Modern casino slot games are controlled by computer chips and software, and the winning percentages are preprogrammed into the gaming software.
Casino slot machine games have RNGs which are endlessly generating combos, even when the slot machine is not currently being played.
Running in sync with the random # generator of the casino slot machine is the pay out rate percentage.
The payout % controls just how much the slot machine will payout, for example the pay out per cent could be ninety percent, meaning the one arm bandit will payout ninety per cent of all the wagers played, and the casino only gets to keep 10 per cent.
This doesn’t imply that each and every time you bet 10 credits you will receive nine in return – where is the fun … exhilaration in that? Instead, the casino slot will not pay out for a little while, and then suddenly go on a hot streak and you might hit a big jackpot prize.
The payout %s most likely will vary between the various games and a few of the notably common casinos, e.g. Golden Online Casino, which provides a pay out rate of up to ninety five %!
So, in essence, the slot machine takes all the money played into it and pays it out to a number of chosen winners. The casino only gets to keep a averagely small per cent of all the plays made.
The casino one armed bandit software controls each part of the machine, from the flashing lights to the circulating of the reels.
When you hit spin on the slot machine, a combination is generated by the RNG which is linked to the pictures on the reel.