Modern casino one armed bandits are controlled by a computer, and the win %s are preprogrammed into the game software.
Casino slot games have RNGs which are continuously generating combinations, even when the slot machine game is not being played.
Running concurrently with the random # generator of the casino one-armed bandit is the pay out %.
The pay out % controls just how much the one-armed bandit will pay, for example the pay out percentage could be ninety per cent, which means the one arm bandit will payout ninety per cent of all the bets played, … the casino only gets to keep ten per cent.
This really does not mean that each and every time you bet ten credits you will receive nine in return – where is 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 pot prize.
The payout percentages usually will vary between the various games and a couple of the highly acclaimed casinos, such as Golden Online Casino, which offers a pay out rate of up to ninety-five percentage!
Thus, in essence, the slot machine game takes all the money played into it and pays it out to some privileged winners. The casino only gets to keep a basically indistinct percentage of all the odds allotted.
The casino one armed bandit software controls each part of the machine, from the dazzling lights to the spinning of the reels.
When you hit spin on the slot machine game, a combination is developed by the RNG which corresponds to the pictures on the reel.