Modern casino slot machines are controlled by computer chips and software, and the win %s are preprogrammed into the software.
Casino slot machine games have Random # Generators which are constantly generating combos, even when the game is not currently being played.
Running collectively with the Random Number Generator of the casino slot machine game is the payout %.
The pay out percent controls just how much the slot machine will payout, for eg the pay % could be ninety percent, which means the slot machine game will pay ninety percent of all the wagers played, … the casino simply gets to keep ten per cent.
This is not to say that each time you bet 10 credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino one arm bandit just will not pay out for a little while, and then suddenly hit a hot streak and you might hit a big grand prize.
The pay out percentages will very likely vary between the different games and several of the notably acclaimed casinos, for e.g Golden Online Casino, which gives a payout rate of up to 95 percentage!
As a result, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to a few privileged winners. The casino only gets to keep a considerably tiny percentage of all the odds allocated.
The casino slot machine software controls each part of the machine, from the blinking lights to the turning of the reels.
When you hit spin on the slot machine game, a combination is put together by the RNG which relates to the pictures on the reel.