Modern casino slot machine games are controlled by a computer, and the win %s are pre-programmed into the software.
Casino one armed bandits have Random # Generators which are continuously generating combos, even when the slot machine is not active.
Running in sync with the random # generator of the casino slot machine is the pay out per cent.
The payout percent controls how much the slot machine will pay, for e.g. the pay out per cent might be ninety percent, meaning the slot machine game will payout ninety per cent of all the bets played, … the casino gets to keep ten per cent.
This doesn’t mean that each and every time you bet ten credits you will receive 9 in return – where is the fun and fascination in that? Instead, the casino slot will not pay out for a while, and then suddenly go on a hot streak and you might hit a big top prize.
The payoff percentages will tend to vary between the various games and a handful of the very popular casinos, like Golden Online Casino, which offers a payout rate of up to ninety five per cent!
So, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to a handful of fortunate winners. The casino only gets to keep a relatively indistinct per cent of all the stakes placed.
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 game, a combination is produced by the RNG which relates to the pictures on the reel.