Modern casino Slots are controlled by computer software, and the winning %s are pre-programmed into the software.
Casino slot machine games have Random # Generators which are eternally generating combos, even when the slot machine game is not active.
Running simultaneously with the RNG of the casino slot machine game is the pay out rate percent.
The payout percentage controls just how much the slot machine game will pay out, for e.g. the pay out percent might be ninety percent, meaning the one arm bandit will pay out 90% of all the stakes played, and the casino gets to keep ten percent.
This does not imply that for every time you bet ten credits you will receive 9 in return – where’s the fun … exhilaration in that? Instead, the casino slot just won’t pay out for a little while, and then suddenly hit a hot streak and you might draw the big grand prize.
The pay off %s will tend to vary between the assorted games and just a few of the extremely common casinos, e.g. Golden Online Casino, which tenders a pay out rate of up to 95 percent!
This means that, in essence, the one-armed bandit takes all the cash played into it and pays it out to a couple of privileged winners. The casino only gets to keep a generally minute percentage of all the odds allocated.
The casino slot software controls each and every part of the machine, from the flickering lights to the turning of the reels.
When you hit spin on the one-armed bandit, a combination is set up by the RNG which relates to the pictures on the reel.