Modern casino slot machine games are controlled by a computer, and the win %s are pre-programmed into the gaming software.
Casino slot games have Random # Generators which are ceaselessly generating combinations, even when the game is not currently being played.
Running concurrently with the Random Number Generator of the casino one-armed bandit is the payout percent.
The payout percentage controls how much the one-armed bandit will payout, for eg the payout % might be ninety percent, which means the slot machine game will pay out 90% of all the stakes played, and the casino simply gets to keep ten per cent.
This does not mean that each time you bet 10 credits you will receive nine in return – where is the fun … fascination in that? Instead, the casino slot machine game just will not payout for a while, and then suddenly go on a hot streak and you might hit a big top prize.
The payout %s most likely will vary between the various games and some of the most famous casinos, e.g. Golden Online Casino, which provides a pay out rate of up to ninety five percent!
So, in essence, the slot machine game takes all the funds played into it and pays it out to some chosen winners. The casino only gets to keep a averagely tiny per cent of all the stakes allocated.
The casino one armed bandit software controls any part of the machine, from the flickering lights to the rolling of the reels.
When you hit spin on the one-armed bandit, a combination is formed by the RNG which corresponds to the pictures on the reel.