Modern casino Slots are controlled by a computer, and the winning %s are preprogrammed into the game software.
Casino slot machine games have RNGs that are ceaselessly generating combinations, even when the slot machine game is not being played.
Running in sync with the RNG of the casino slot machine is the pay out rate per cent.
The pay out % controls how much the slot machine game will pay out, for example the pay out per cent may be ninety percent, meaning the slot game will payout ninety per cent of all the wagers played, and the casino gets to keep 10%.
This is not to say that each and every time you bet 10 credits you will receive 9 in return – where is the fun and fascination in that? Instead, the casino slot just won’t payout for a while, and then suddenly go on a hot streak and you might hit a big pot prize.
The pay off %s will tend to vary between the different games and a few of the very established casinos, for e.g Golden Online Casino, which gives a payout rate of up to 95 per cent!
As a result, in essence, the slot machine takes all the $$$$$ played into it and pays it out to a couple of chosen winners. The casino only gets to keep a relatively indistinct % of all the wagers placed.
The casino slot machine software controls each and every part of the machine, from the dazzling lights to the rolling of the reels.
When you hit spin on the one-armed bandit, a combination is developed by the RNG which relates to the pictures on the reel.