Modern casino Slots are controlled by computer chips and software, and the win percentages are pre-programmed into the software.
Casino one armed bandits have Random Number Generators which are endlessly generating combinations, even when the game is not being played.
Running in sync with the RNG of the casino slot machine game is the payout rate percent.
The pay out per cent controls how much the one-armed bandit will pay, for e.g. the payout per cent may be 90%, which means the slot machine will payout 90% of all the stakes played, and the casino will then get to keep 10 per cent.
This does not mean that each time you bet 10 credits you will receive nine in return – where’s the fun … thrill in that? Instead, the casino slot will not pay out for a bit, and then suddenly fire up a hot streak and you might hit a big top prize.
The payoff %s shall vary between the various games and a couple of the notably famous casinos, for e.g Golden Online Casino, which gives a pay out of up to ninety-five percentage!
So, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to a few lucky winners. The casino only gets to keep a averagely low percent of all the gambles put out.
The casino slot machine software controls any part of the machine, from the flashing lights to the spinning of the reels.
When you hit spin on the one-armed bandit, a combination is developed by the RNG which is linked to the pictures on the reel.