Modern casino slot machines are controlled by computer software, and the win %s are pre-programmed into the computer software.
Casino one armed bandits have RNGs which are continuously generating combos, even when the game is not being played.
Running concurrently with the Random Number Generator of the casino one-armed bandit is the payout per cent.
The payout per cent controls how much the slot machine game will payout, for eg the pay % may be 90%, which means the slot machine game will pay ninety percent of all the stakes played, and the casino only gets to keep 10 per cent.
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 pay out for a while, and then suddenly go on a hot streak and you might hit a big jackpot.
The profit percentages will tend to vary between the assorted games and several of the highly popular casinos, e.g. Golden Online Casino, which provides a payment of up to ninety-five per cent!
This means that, in essence, the slot machine game takes all the cash played into it and pays it out to some privileged winners. The casino only gets to keep a generally tiny percent of all the plays allocated.
The casino slot machine software controls every single part of the machine, from the dazzling lights to the turning of the reels.
When you hit spin on the slot machine game, a combination is put together by the RNG which connects with the pictures on the reel.