Modern casino slot machine games are controlled by computer chips and software, and the win %s are preprogrammed into the gaming software.
Casino one armed bandits have Random # Generators which are continuously generating combinations, even when the game is not being played.
Running side by side with the RNG of the casino slot machine is the payout percentage.
The payout percentage controls how much the one-armed bandit will pay, for e.g. the pay percent might be ninety per cent, meaning the slot game will pay ninety percent of all the bets played, … the casino only gets to keep ten per cent.
This does not mean that each and every time you bet ten credits you will receive 9 in return – where’s the fun and fascination in that? Instead, the casino slot machine just will not payout for a little while, and then suddenly jump on a hot streak and you might draw the big jackpot prize.
The pay out percentages will tend to vary between the differing games and just a few of the most favored casinos, e.g. Golden Online Casino, which provides a payment of up to ninety five per cent!
This means that, in essence, the slot machine takes all the currency played into it and pays it out to a couple of lucky winners. The casino only gets to keep a basically small % of all the bets placed.
The casino slot software controls each and every 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 generated by the RNG which associates with the pictures on the reel.