Modern casino slot machine games are controlled by computer software, and the win %s are pre-programmed into the game software.
Casino slot games have RNGs that are eternally generating combinations, even when the slot machine is not currently being played.
Running simultaneously with the Random Number Generator of the casino slot machine is the pay out rate percent.
The payout percentage controls just how much the slot machine will pay out, for e.g. the pay out percentage may be ninety per cent, meaning the slot machine will payout ninety per cent of all the stakes played, and the casino gets to keep ten percent.
This doesn’t mean that every time you bet 10 credits you will receive 9 in return – where’s the fun and fascination in that? Instead, the casino slot machine game just will not payout for a while, and then suddenly start up a hot streak and you might hit a big grand prize.
The profit %s usually will vary between the various games and several of the most popular casinos, like Golden Online Casino, which hands out a pay out of up to ninety-five %!
Therefore, in essence, the slot machine takes all the $$$$$ played into it and pays it out to a couple of privileged winners. The casino only gets to keep a fairly indistinct percentage of all the gambles allocated.
The casino slot software controls any part of the machine, from the flashing lights to the turning of the reels.
When you hit spin on the one-armed bandit, a combination is generated by the RNG which relates to the pictures on the reel.