Modern casino slot machine games are controlled by computer chips and software, and the win percentages are pre-programmed into the game software.
Casino slot machine games have RNGs which are endlessly generating combinations, even when the slot machine is not being played.
Running in unison with the Random Number Generator of the casino one-armed bandit is the payout percent.
The pay out per cent controls how much the one-armed bandit will payout, for e.g. the pay out % may be ninety percent, meaning the slot game will payout ninety per cent of all the stakes played, and the casino gets to keep ten per cent.
This does not mean that for every time you bet ten credits you will receive 9 in return – where is the fun and fascination in that? Instead, the casino slot just won’t payout for a bit, and then suddenly go on a hot streak and you might draw the big grand prize.
The pay off percentages will definitely vary between the different games and a couple of the highly famous casinos, for e.g Golden Online Casino, which puts forth a payout rate of up to 95 %!
This means that, in essence, the one-armed bandit takes all the cash played into it and pays it out to a number of chosen winners. The casino only gets to keep a averagely tiny percent of all the bets allocated.
The casino one armed bandit software controls each and every part of the machine, from the blinking lights to the spinning of the reels.
When you hit spin on the one-armed bandit, a combination is developed by the RNG which corresponds to the pictures on the reel.