Modern casino one armed bandits are controlled by a computer, and the win %s are preprogrammed into the software.
Casino slot games have Random Number Generators that are continuously 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 game is the pay out %.
The payout percent controls just how much the slot machine game will pay, for eg the pay out percentage may be ninety percent, which means the one arm bandit will payout ninety percent of all the stakes played, and the casino gets to keep 10%.
This does not imply that for every time you bet 10 credits you will receive nine in return – where is the fun … thrill in that? Instead, the casino slot machine game just will not pay out for a while, and then suddenly fire up a hot streak and you might draw the big pot prize.
The pay out percentages will tend to vary between the a variety of games and some of the notably favored casinos, for example Golden Online Casino, which hands out a payment of up to 95 per cent!
As a result, in essence, the slot machine takes all the $$$$$ played into it and pays it out to a handful of privileged winners. The casino only gets to keep a basically minute per cent of all the stakes made.
The casino one armed bandit software controls every single part of the machine, from the flickering lights to the rotating of the reels.
When you hit spin on the one-armed bandit, a combination is set up by the RNG which is linked to the pictures on the reel.