Modern casino slot machine games are controlled by computer software, and the win %s are pre-programmed into the computer software.

Casino slot machines have Random Number Generators that are continuously generating combos, even when the slot machine is not active.

Running side by side with the RNG of the casino one-armed bandit is the payout rate per cent.

The payout percent controls just how much the slot machine will payout, for example the pay % may be 90%, meaning the slot machine will pay out 90% of all the stakes played, and the casino gets to keep ten per cent.

This is not to say that for every time you bet ten credits you will receive nine in return – where is the fun and excitement in that? Instead, the casino slot machine just will not pay out for a little while, and then suddenly start up a hot streak and you might hit a big jackpot prize.

The payout %s will very likely vary between the various games and a couple of the most famous casinos, for e.g Golden Online Casino, which provides a payout rate of up to 95 percentage!

Hence, in essence, the slot machine game takes all the cash played into it and pays it out to a handful of lucky winners. The casino only gets to keep a considerably tiny percentage of all the gambles allotted.

The casino slot software controls each part of the machine, from the flashing lights to the turning of the reels.

When you hit spin on the slot machine, a combination is developed by the RNG which is linked to the pictures on the reel.