Modern casino slot machine games are controlled by computer chips and software, and the win percentages are pre-programmed into the game software.
Casino slot machine games have RNGs which are continuously generating combinations, even when the game is not currently being played.
Running in sync with the Random Number Generator of the casino slot machine is the payout per cent.
The pay out percent controls how much the slot machine game will pay out, for eg the payout percentage could be ninety percent, which means the slot game will pay 90% of all the stakes played, … the casino only gets to keep ten percent.
This is not to say that each time you bet 10 credits you will receive nine in return – where is the fun and thrill in that? Instead, the casino slot won’t payout for a while, and then suddenly start up a hot streak and you might hit a big top prize.
The payoff percentages will tend to vary between the various games and a few of the very common casinos, such as Golden Online Casino, which offers a payment of up to ninety five %!
So, in essence, the slot machine game takes all the money played into it and pays it out to some lucky winners. The casino only gets to keep a generally petite percentage of all the odds allotted.
The casino slot software controls any part of the machine, from the flashing lights to the spinning of the reels.
When you hit spin on the one-armed bandit, a combination is set up by the RNG which corresponds to the pictures on the reel.