Modern casino slot machines are controlled by computer software, and the win %s are pre-programmed into the software.
Casino slot machines have Random Number Generators that are ceaselessly generating combinations, even when the game is not active.
Running side by side with the Random Number Generator of the casino one-armed bandit is the pay out percentage.
The pay out per cent controls just how much the slot machine will payout, for e.g. the pay out percentage might be 90%, meaning the slot machine game will pay out ninety percent of all the bets played, … the casino only gets to keep ten per cent.
This doesn’t mean that every time you bet 10 credits you will receive 9 in return – where is the fun … fascination in that? Instead, the casino slot just will not pay out for a while, and then suddenly go on a hot streak and you might draw the big pot prize.
The payoff percentages will most likely vary between the different games and a few of the extremely favored casinos, such as Golden Online Casino, which provides a payment of up to ninety five percentage!
Hence, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to a handful of privileged winners. The casino only gets to keep a basically small percent of all the gambles placed.
The casino slot software controls each and every part of the machine, from the flickering lights to the circulating 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.