Modern casino slot games are controlled by computer software, and the win percentages are pre-programmed into the game software.
Casino one armed bandits have Random Number Generators which are continually generating combinations, even when the slot machine is not being played.
Running concurrently with the Random Number Generator of the casino one-armed bandit is the payout rate per cent.
The pay out percent controls just how much the one-armed bandit will pay out, for eg the payout percentage may be 90%, which means the slot machine game will payout ninety per cent of all the bets played, and the casino simply gets to keep 10 percent.
This does not mean that each time you bet 10 credits you will receive 9 in return – where is the fun and thrill in that? Instead, the casino slot machine just will not pay out for a little while, and then suddenly start up a hot streak and you might draw the big jackpot.
The profit percentages will very likely vary between the assorted games and some of the highly famous casinos, for instance Golden Online Casino, which hands out a pay out rate of up to 95 per cent!
As a result, in essence, the slot machine game takes all the currency played into it and pays it out to a couple of lucky winners. The casino only gets to keep a fairly indistinct per cent of all the gambles made.
The casino one armed bandit software controls each and every part of the machine, from the flashing lights to the rolling of the reels.
When you hit spin on the slot machine, a combination is set up by the RNG which relates to the pictures on the reel.