Modern casino slot machines are controlled by computer software, and the winning %s are pre-programmed into the game software.
Casino slot games have RNGs which are endlessly generating combos, even when the game is not currently being played.
Running synchronously with the Random Number Generator of the casino one-armed bandit is the payout rate per cent.
The payout percentage controls just how much the one-armed bandit will payout, for eg the pay percentage might be 90%, which means the slot machine will pay out 90% of all the bets played, and the casino will then get to keep ten per cent.
This does not mean that each and every time you bet 10 credits you will receive 9 in return – where is the fun … excitement in that? Instead, the casino slot machine just will not payout for a little while, and then suddenly go on a hot streak and you might draw the big top prize.
The profit percentages will tend to vary between the assorted games and just a few of the highly acclaimed casinos, e.g. Golden Online Casino, which puts forth a payout rate of up to ninety-five percentage!
Hence, in essence, the one-armed bandit takes all the currency played into it and pays it out to a handful of fortunate winners. The casino only gets to keep a generally petite percent of all the plays allotted.
The casino slot machine 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 one-armed bandit, a combination is generated by the RNG which corresponds to the pictures on the reel.