Modern casino slot machines are controlled by computer software, and the win percentages are pre-programmed into the software.
Casino slot games have Random Number Generators which are eternally generating combinations, even when the slot machine game is not being played.
Running in sync with the Random Number Generator of the casino slot machine is the payout rate %.
The payout % controls how much the one-armed bandit will pay, for eg the payout percent may be ninety per cent, which means the slot game will payout ninety percent of all the wagers played, and the casino only gets to keep 10 per cent.
This is not to say that every time you bet ten credits you will receive 9 in return – where’s the fun … fascination in that? Instead, the casino slot machine game just will not payout for a little while, and then suddenly start up a hot streak and you might catch the big pot prize.
The payoff percentages will tend to vary between the differing games and some of the very acclaimed casinos, such as Golden Online Casino, which puts forth a pay out rate of up to ninety five %!
So, in essence, the slot machine takes all the currency played into it and pays it out to several fortunate winners. The casino only gets to keep a considerably low percentage of all the odds put out.
The casino one armed bandit software controls each part of the machine, from the flashing lights to the revolving of the reels.
When you hit spin on the slot machine, a combination is formed by the RNG which is linked to the pictures on the reel.