Modern casino slot machines are controlled by computer chips and software, and the winner %s are pre-programmed into the gaming software.
Casino one armed bandits have Random # Generators that are eternally generating combos, even when the slot machine game is not active.
Running simultaneously with the Random Number Generator of the casino slot machine game is the payout percent.
The pay out % controls just how much the one-armed bandit will pay, for example the pay per cent may be ninety per cent, which means the slot game will pay out ninety per cent of all the wagers played, and the casino only gets to keep ten percent.
This is not to say that every time you bet 10 credits you will receive 9 in return – where’s the fun and thrill in that? Instead, the casino slot machine just won’t payout for a little while, and then suddenly jump on a hot streak and you might hit a big grand prize.
The pay out %s will very likely vary between the differing games and several of the most favored casinos, e.g. Golden Online Casino, which provides a cash payment of up to 95 %!
So, in essence, the slot machine game takes all the money played into it and pays it out to a couple of privileged winners. The casino only gets to keep a generally indistinct per cent of all the gambles made.
The casino slot software controls each 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 corresponds to the pictures on the reel.