Modern casino slot machine games are controlled by computer chips and software, and the win percentages are pre-programmed into the computer software.
Casino slot games have Random # Generators that are ceaselessly generating combos, even when the slot machine game is not currently being played.
Running synchronously with the RNG of the casino one-armed bandit is the payout rate %.
The payout percent controls just how much the one-armed bandit will pay, for e.g. the payout percent might be 90%, meaning the slot game will payout 90% of all the bets played, and the casino only gets to keep 10 per cent.
This does not mean that each and every time you bet ten credits you will receive 9 in return – where is the fun … fascination in that? Instead, the casino slot machine just will not payout for a bit, and then suddenly fire up a hot streak and you might draw the big pot prize.
The pay out %s will most likely vary between the differing games and a few of the most established casinos, like Golden Online Casino, which puts forth a cash payment of up to 95 %!
This means that, in essence, the slot machine takes all the cash played into it and pays it out to some fortunate winners. The casino only gets to keep a relatively indistinct percent of all the odds made.
The casino slot software controls 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 put together by the RNG which corresponds to the pictures on the reel.