Modern casino slot machines are controlled by computer chips and software, and the winning %s are preprogrammed into the computer software.
Casino slot games have Random Number Generators which are continually generating combos, even when the slot machine game is not being played.
Running in sync with the RNG of the casino slot machine is the pay out rate percentage.
The pay out percent controls how much the slot machine will pay, for e.g. the payout percent might be ninety percent, which means the slot game will payout ninety per cent of all the stakes played, … the casino only gets to keep ten percent.
This doesn’t mean that each and every time you bet ten credits you will receive nine in return – where’s the fun … thrill in that? Instead, the casino slot machine game just won’t pay out for a little while, and then suddenly start up a hot streak and you might hit a big jackpot.
The payoff percentages most likely will vary between the various games and just a few of the very acclaimed casinos, for e.g Golden Online Casino, which gives a payment of up to ninety-five per cent!
Therefore, in essence, the slot machine game takes all the currency played into it and pays it out to several chosen winners. The casino only gets to keep a generally minute per cent of all the plays made.
The casino slot software controls every single part of the machine, from the flickering lights to the rolling of the reels.
When you hit spin on the one-armed bandit, a combination is generated by the RNG which relates to the pictures on the reel.