Modern casino slot games are controlled by computer chips and software, and the win percentages are pre-programmed into the gaming software.
Casino slot machine games have RNGs which are constantly generating combinations, even when the game is not being played.
Running synchronously with the RNG of the casino slot machine game is the pay out %.
The payout percentage controls how much the one-armed bandit will payout, for eg the payout percentage might be 90%, meaning the one arm bandit will pay ninety percent of all the wagers played, … the casino simply gets to keep 10 percent.
This really does not mean that each time you bet 10 credits you will receive nine in return – where is the fun … excitement in that? Instead, the casino one arm bandit won’t pay out for a little while, and then suddenly go on a hot streak and you might catch the big jackpot prize.
The pay out percentages will vary between the a variety of games and a handful of the notably famous casinos, for e.g Golden Online Casino, which tenders a payout rate of up to ninety-five percent!
Hence, in essence, the slot machine takes all the dough played into it and pays it out to some privileged winners. The casino only gets to keep a relatively low % of all the stakes allocated.
The casino slot machine software controls every single part of the machine, from the flickering lights to the revolving of the reels.
When you hit spin on the slot machine game, a combination is formed by the RNG which corresponds to the pictures on the reel.