Modern casino slot games are controlled by computer chips and software, and the winner %s are preprogrammed into the gaming software.
Casino slot machine games have Random Number Generators which are ceaselessly generating combos, even when the slot machine is not active.
Running in unison with the Random Number Generator of the casino one-armed bandit is the pay out percentage.
The pay out % controls how much the one-armed bandit will pay out, for eg the payout percentage could be 90%, meaning the slot game will pay out 90% of all the stakes played, … the casino simply gets to keep 10%.
This is not to say that each time you bet ten credits you will receive 9 in return – where’s the fun and exhilaration in that? Instead, the casino slot machine just will not payout for a bit, and then suddenly fire up a hot streak and you might catch the big grand prize.
The payoff %s will vary between the various games and a handful of the most established casinos, e.g. Golden Online Casino, which provides a payout rate of up to ninety five per cent!
This means that, in essence, the slot machine game takes all the cash played into it and pays it out to some privileged winners. The casino only gets to keep a fairly small percent of all the bets allocated.
The casino slot software controls each part of the machine, from the blinking lights to the turning of the reels.
When you hit spin on the slot machine, a combination is formed by the RNG which connects with the pictures on the reel.