Modern casino slot machines are controlled by computer chips and software, and the winning percentages are preprogrammed into the computer software.
Casino Slots have RNGs that are continually generating combinations, even when the machine is not being played.
Running in unison with the random # generator of the casino slot machine game is the pay out rate per cent.
The pay out per cent controls just how much the slot machine will payout, for e.g. the payout percent could be ninety per cent, meaning the slot machine game will pay out ninety per cent of all the bets played, and the casino simply gets to keep 10%.
This does not mean that each 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 while, and then suddenly jump on a hot streak and you might catch the big pot prize.
The payoff percentages will vary between the a variety of games and a few of the highly established casinos, e.g. Golden Online Casino, which hands out a pay out rate of up to ninety-five percentage!
Hence, in essence, the slot machine game takes all the funds played into it and pays it out to a handful of lucky winners. The casino only gets to keep a averagely indistinct per cent of all the stakes allocated.
The casino slot machine software controls each part of the machine, from the flashing lights to the turning of the reels.
When you hit spin on the slot machine game, a combination is formed by the RNG which is linked to the pictures on the reel.