Modern casino slot machines are controlled by computer chips and software, and the winner %s are pre-programmed into the computer software.
Casino slot games have Random Number Generators that are endlessly generating combos, even when the slot machine is not currently being played.
Running concurrently with the RNG of the casino slot machine is the pay out rate %.
The payout percentage controls how much the slot machine will pay, for eg the pay % might be ninety percent, meaning the one arm bandit will payout ninety per cent of all the stakes played, and the casino will then get to keep ten per cent.
This really does not mean that for every time you bet 10 credits you will receive nine in return – where’s the fun and thrill in that? Instead, the casino slot machine just won’t pay out for a little while, and then suddenly jump on a hot streak and you might draw the big jackpot.
The payout percentages will tend to vary between the differing games and some of the highly popular casinos, for e.g Golden Online Casino, which gives a pay out rate of up to ninety-five per cent!
So, in essence, the slot machine game takes all the currency played into it and pays it out to a handful of chosen winners. The casino only gets to keep a generally small percentage of all the plays allocated.
The casino slot machine software controls any part of the machine, from the dazzling lights to the spinning of the reels.
When you hit spin on the one-armed bandit, a combination is developed by the RNG which is linked to the pictures on the reel.