Modern casino slot machine games are controlled by a computer, and the winning percentages are preprogrammed into the gaming software.
Casino slot games have RNGs which are constantly generating combinations, even when the slot machine game is not being played.
Running in sync with the Random Number Generator of the casino slot machine is the pay out rate per cent.
The payout per cent controls just how much the slot machine game will pay, for eg the payout percentage may be ninety percent, which means the slot machine game will payout ninety percent of all the wagers played, and the casino will then get to keep 10 percent.
This does not imply that each time you bet 10 credits you will receive 9 in return – where is the fun … thrill in that? Instead, the casino slot won’t payout for a bit, and then suddenly jump on a hot streak and you might draw the big grand prize.
The pay off %s usually will vary between the different games and a handful of the very acclaimed casinos, for e.g Golden Online Casino, which hands out a pay out rate of up to 95 per cent!
As a result, in essence, the one-armed bandit takes all the cash played into it and pays it out to a number of fortunate winners. The casino only gets to keep a considerably indistinct percentage of all the stakes allocated.
The casino slot machine software controls every part of the machine, from the flickering lights to the rotating of the reels.
When you hit spin on the one-armed bandit, a combination is generated by the RNG which corresponds to the pictures on the reel.