Modern casino Slots are controlled by computer software, and the win %s are pre-programmed into the software.
Casino slot machines have Random Number Generators that are continually generating combos, even when the game is not being played.
Running in sync with the RNG of the casino slot machine game is the pay out rate per cent.
The pay out percentage controls how much the slot machine game will payout, for eg the payout percent may be ninety percent, which means the slot machine will pay out ninety percent of all the wagers played, and the casino gets to keep 10%.
This does not mean that each time you bet 10 credits you will receive nine in return – where is the fun and excitement in that? Instead, the casino one arm bandit won’t pay out for a bit, and then suddenly fire up a hot streak and you might draw the big top prize.
The pay off percentages will definitely vary between the various games and just a few of the highly popular casinos, such as Golden Online Casino, which puts forth a pay out of up to ninety-five percent!
So, in essence, the slot machine game takes all the cash played into it and pays it out to several lucky winners. The casino only gets to keep a basically minute percent of all the gambles allotted.
The casino one armed bandit software controls any part of the machine, from the blinking lights to the circulating of the reels.
When you hit spin on the slot machine game, a combination is generated by the RNG which associates with the pictures on the reel.