Modern casino Slots are controlled by computer software, and the win %s are pre-programmed into the game software.
Casino slot games have RNGs which are eternally generating combinations, even when the machine is not being played.
Running concurrently with the Random Number Generator of the casino slot machine game is the payout rate percentage.
The pay out percentage controls how much the slot machine game will payout, for eg the payout percentage may be ninety per cent, which means the one arm bandit will payout 90% of all the wagers played, and the casino simply gets to keep ten percent.
This is not to say that each and every time you bet ten credits you will receive nine in return – where’s the fun … excitement in that? Instead, the casino one arm bandit just won’t payout for a bit, and then suddenly go on a hot streak and you might hit a big grand prize.
The payoff percentages usually will vary between the different games and a couple of the extremely acclaimed casinos, e.g. Golden Online Casino, which puts forth a pay out rate of up to ninety five percentage!
Thus, in essence, the slot machine game takes all the currency played into it and pays it out to a couple of fortunate winners. The casino only gets to keep a relatively indistinct per cent of all the stakes made.
The casino one armed bandit software controls every single part of the machine, from the dazzling lights to the rolling 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.