Modern casino slot machines are controlled by computer chips and software, and the win %s are pre-programmed into the game software.
Casino Slots have Random Number Generators which are eternally generating combinations, even when the machine is not active.
Running simultaneously with the random # generator of the casino slot machine is the pay out rate percentage.
The payout percentage controls just how much the one-armed bandit will pay, for example the payout % could be ninety per cent, which means the slot game will pay ninety per cent of all the wagers played, and the casino will then get to keep 10%.
This is not to say that every time you bet 10 credits you will receive 9 in return – where is the fun and fascination in that? Instead, the casino one arm bandit just won’t payout for a little while, and then suddenly jump on a hot streak and you might hit a big jackpot prize.
The payoff percentages will very likely vary between the differing games and a handful of the most common casinos, for instance Golden Online Casino, which provides a payout of up to ninety-five percentage!
Therefore, in essence, the slot machine game takes all the funds played into it and pays it out to a number of privileged winners. The casino only gets to keep a fairly tiny % of all the odds placed.
The casino one armed bandit software controls every part of the machine, from the flashing lights to the revolving of the reels.
When you hit spin on the slot machine game, a combination is developed by the RNG which connects with the pictures on the reel.