Modern casino Slots are controlled by computer software, and the winning percentages are preprogrammed into the computer software.
Casino slot games have RNGs that are continually generating combinations, even when the slot machine is not being played.
Running in unison with the RNG of the casino slot machine is the payout rate %.
The pay out % controls just how much the slot machine will pay out, for e.g. the payout per cent could be 90%, which means the slot machine game will pay ninety percent of all the wagers played, and the casino will then get to keep ten percent.
This is not to say that every time you bet ten credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino one arm bandit will not payout for a while, and then suddenly hit a hot streak and you might draw the big pot prize.
The pay off percentages usually will vary between the assorted games and some of the very acclaimed casinos, such as Golden Online Casino, which puts forth a cash payment of up to ninety five per cent!
Therefore, in essence, the slot machine game takes all the cash played into it and pays it out to a handful of chosen winners. The casino only gets to keep a generally small % of all the bets allotted.
The casino slot machine software controls every single part of the machine, from the blinking lights to the spinning of the reels.
When you hit spin on the one-armed bandit, a combination is put together by the RNG which is linked to the pictures on the reel.