Modern casino one armed bandits are controlled by computer software, and the winning %s are pre-programmed into the software.
Casino slot machines have Random Number Generators which are eternally generating combinations, even when the machine is not active.
Running collectively with the Random Number Generator of the casino slot machine is the pay out %.
The pay out percent controls how much the slot machine game will pay, for example the payout % may be ninety per cent, meaning the slot machine will pay ninety percent of all the bets played, and the casino only gets to keep ten percent.
This does not imply that each time you bet ten credits you will receive nine in return – where is the fun … excitement in that? Instead, the casino slot machine game won’t pay out for a while, and then suddenly fire up a hot streak and you might hit a big pot prize.
The payout %s usually will vary between the different games and just a few of the most acclaimed casinos, for e.g Golden Online Casino, which hands out a payout rate of up to ninety-five percent!
This means that, in essence, the slot machine game takes all the currency played into it and pays it out to a number of lucky winners. The casino only gets to keep a generally minute per cent of all the bets placed.
The casino one armed bandit software controls every single part of the machine, from the blinking lights to the revolving of the reels.
When you hit spin on the one-armed bandit, a combination is generated by the RNG which associates with the pictures on the reel.