Modern casino Slots are controlled by a computer, and the winner %s are pre-programmed into the software.

Casino slot games have Random Number Generators which are continually generating combos, even when the game is not active.

Running concurrently with the RNG of the casino one-armed bandit is the pay out %.

The pay out percent controls just how much the slot machine will pay, for e.g. the pay % may be 90%, which means the slot machine game will pay 90% of all the bets played, and the casino only gets to keep ten per cent.

This does not mean that for every time you bet ten credits you will receive nine in return – where’s the fun and fascination in that? Instead, the casino slot won’t pay out for a while, and then suddenly go on a hot streak and you might catch the big jackpot prize.

The payout percentages will most likely vary between the various games and a couple of the very famous casinos, such as Golden Online Casino, which gives a payout rate of up to ninety five per cent!

So, in essence, the slot machine game takes all the dough played into it and pays it out to a handful of lucky winners. The casino only gets to keep a averagely small % of all the plays 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, a combination is set up by the RNG which relates to the pictures on the reel.