Modern casino slot games are controlled by computer software, and the winning percentages are pre-programmed into the gaming software.
Casino Slots have Random Number Generators that are constantly generating combos, even when the game is not being played.
Running in sync with the random # generator of the casino slot machine is the payout rate percent.
The payout percent controls how much the one-armed bandit will pay, for example the pay % could be ninety percent, meaning the slot machine game will pay out ninety per cent of all the stakes played, and the casino gets to keep ten percent.
This doesn’t imply that every time you bet 10 credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino slot machine game will not payout for a while, and then suddenly fire up a hot streak and you might hit a big grand prize.
The pay off percentages will tend to vary between the different games and just a few of the highly established casinos, for e.g Golden Online Casino, which provides a cash payment of up to ninety-five percent!
Hence, in essence, the one-armed bandit takes all the money played into it and pays it out to a couple of privileged winners. The casino only gets to keep a fairly small percentage of all the gambles allocated.
The casino slot machine software controls every single part of the machine, from the flickering lights to the rotating of the reels.
When you hit spin on the slot machine, a combination is developed by the RNG which is linked to the pictures on the reel.