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

Casino slot machines have Random # Generators that are endlessly generating combinations, even when the slot machine is not active.

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

The payout percentage controls just how much the slot machine game will pay, for example the payout % might be ninety percent, which means the one arm bandit will pay out ninety per cent of all the bets played, and the casino gets to keep ten percent.

This does not mean that each and every time you bet 10 credits you will receive 9 in return – where is the fun and exhilaration in that? Instead, the casino slot machine game just will not pay out for a bit, and then suddenly start up a hot streak and you might draw the big grand prize.

The pay out percentages usually will vary between the different games and a few of the highly favored casinos, for example Golden Online Casino, which gives a pay out rate of up to ninety five per cent!

So, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to some privileged winners. The casino only gets to keep a averagely minute percentage of all the plays put out.

The casino one armed bandit software controls each and every part of the machine, from the blinking lights to the turning of the reels.

When you hit spin on the one-armed bandit, a combination is generated by the RNG which corresponds to the pictures on the reel.