Modern casino slot games are controlled by a computer, and the winning percentages are preprogrammed into the gaming software.
Casino slot games have RNGs which are continually generating combinations, even when the game is not currently being played.
Running concurrently with the random # generator of the casino slot machine game is the pay out rate percent.
The pay out percent controls how much the slot machine game will payout, for e.g. the pay out percentage may be ninety percent, which means the slot game will pay 90% of all the wagers played, … the casino only gets to keep 10 per cent.
This does not mean that each time you bet 10 credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino one arm bandit just won’t payout for a little while, and then suddenly hit a hot streak and you might catch the big jackpot.
The pay out percentages most likely will vary between the a variety of games and several of the highly common casinos, for example Golden Online Casino, which tenders a payout rate of up to ninety five percent!
Therefore, in essence, the slot machine game takes all the cash played into it and pays it out to a number of chosen winners. The casino only gets to keep a generally small percentage of all the stakes placed.
The casino slot software controls every part of the machine, from the flickering lights to the revolving of the reels.
When you hit spin on the slot machine, a combination is generated by the RNG which is linked to the pictures on the reel.