Modern casino slot games are controlled by a computer, and the winning percentages are preprogrammed into the computer software.

Casino slot machine games have RNGs that are ceaselessly generating combinations, even when the slot machine game is not being played.

Running in sync with the Random Number Generator of the casino one-armed bandit is the pay out rate %.

The payout percentage controls how much the one-armed bandit will payout, for eg the pay per cent might be ninety percent, which means the slot machine game will payout ninety percent of all the stakes played, … the casino only gets to keep 10 per cent.

This doesn’t imply that every time you bet ten credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino slot just will not payout for a while, and then suddenly go on a hot streak and you might draw the big grand prize.

The payoff %s will tend to vary between the assorted games and some of the very acclaimed casinos, for example Golden Online Casino, which hands out a payout of up to 95 percent!

Thus, in essence, the one-armed bandit takes all the cash played into it and pays it out to several chosen winners. The casino only gets to keep a fairly petite percentage of all the plays put out.

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

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