Modern casino slot machine games are controlled by computer software, and the winner percentages are pre-programmed into the software.

Casino slot machine games have Random # Generators which are continually generating combinations, even when the machine is not active.

Running side by side with the Random Number Generator of the casino slot machine is the pay out rate percent.

The pay out per cent controls just how much the one-armed bandit will payout, for example the pay per cent might be ninety per cent, which means the slot game will payout ninety percent of all the wagers played, and the casino gets to keep 10%.

This is not to say that each and every time you bet 10 credits you will receive nine in return – where’s the fun and fascination in that? Instead, the casino slot machine game just won’t payout for a bit, and then suddenly go on a hot streak and you might catch the big grand prize.

The profit %s will very likely vary between the various games and a couple of the extremely common casinos, such as Golden Online Casino, which provides a payment of up to 95 per cent!

As a result, in essence, the one-armed bandit takes all the money played into it and pays it out to a handful of privileged winners. The casino only gets to keep a generally low % of all the plays put out.

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

When you hit spin on the slot machine, a combination is formed by the RNG which associates with the pictures on the reel.