Modern casino slot machines are controlled by computer software, and the win %s are pre-programmed into the computer software.
Casino slot games have RNGs that are ceaselessly generating combinations, even when the slot machine game is not being played.
Running concurrently with the RNG of the casino slot machine is the pay out per cent.
The pay out % controls how much the slot machine will payout, for e.g. the pay out % may be 90%, which means the slot machine will payout ninety per cent of all the bets played, and the casino will then get to keep ten percent.
This really does not mean that each and every time you bet 10 credits you will receive nine in return – where is the fun … excitement in that? Instead, the casino slot machine just won’t payout for a little while, and then suddenly go on a hot streak and you might draw the big jackpot prize.
The payout %s will definitely vary between the alternate games and several of the notably favored casinos, for instance Golden Online Casino, which tenders a pay out rate of up to ninety five %!
Hence, in essence, the one-armed bandit takes all the cash played into it and pays it out to a couple of fortunate winners. The casino only gets to keep a relatively tiny percent of all the wagers put out.
The casino slot software controls every single part of the machine, from the flickering lights to the turning of the reels.
When you hit spin on the one-armed bandit, a combination is generated by the RNG which connects with the pictures on the reel.