Modern casino slot games are controlled by computer chips and software, and the win percentages are preprogrammed into the gaming software.
Casino slot machines have RNGs that are continually generating combos, even when the game is not active.
Running simultaneously with the Random Number Generator of the casino slot machine is the payout percentage.
The pay out % controls just how much the slot machine will pay, for example the payout per cent may be ninety per cent, which means the slot game will pay out 90% of all the wagers played, … the casino gets to keep 10%.
This does not mean that each time you bet ten credits you will receive nine in return – where is the fun … exhilaration in that? Instead, the casino slot machine game won’t payout for a while, and then suddenly jump on a hot streak and you might hit a big top prize.
The pay out %s shall vary between the various games and a couple of the extremely popular casinos, for example Golden Online Casino, which offers a pay out rate of up to ninety-five per cent!
Therefore, in essence, the one-armed bandit takes all the money played into it and pays it out to a couple of chosen winners. The casino only gets to keep a relatively low percent of all the plays allotted.
The casino one armed bandit software controls every single part of the machine, from the flashing lights to the revolving of the reels.
When you hit spin on the slot machine, a combination is put together by the RNG which associates with the pictures on the reel.