Modern casino slot machine games are controlled by computer chips and software, and the winning %s are pre-programmed into the software.
Casino slot machines have Random Number Generators which are ceaselessly generating combos, even when the machine is not being played.
Running in unison with the Random Number Generator of the casino one-armed bandit is the pay out per cent.
The payout percent controls just how much the slot machine game will pay out, for eg the payout percentage could be ninety percent, which means the one arm bandit will payout 90% of all the bets played, and the casino will then get to keep 10 percent.
This doesn’t mean that for every time you bet ten credits you will receive nine in return – where is the fun and excitement in that? Instead, the casino slot machine game won’t payout for a little while, and then suddenly start up a hot streak and you might draw the big jackpot.
The pay off percentages will definitely vary between the assorted games and a few of the highly common casinos, for e.g Golden Online Casino, which hands out a pay out rate of up to 95 %!
So, in essence, the one-armed bandit takes all the cash played into it and pays it out to several chosen winners. The casino only gets to keep a fairly low percent of all the gambles 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.