Modern casino slot machines are controlled by computer chips and software, and the win percentages are pre-programmed into the computer software.
Casino slot machine games have RNGs which are continually generating combos, even when the slot machine game is not active.
Running synchronously with the Random Number Generator of the casino slot machine game is the pay out per cent.
The pay out per cent controls just how much the one-armed bandit will pay out, for eg the pay % may be ninety percent, meaning the one arm bandit will pay ninety per cent of all the bets played, and the casino will then get to keep 10 percent.
This doesn’t mean that each and every time you bet ten credits you will receive nine in return – where’s the fun and thrill in that? Instead, the casino slot machine will not payout for a little while, and then suddenly hit a hot streak and you might draw the big top prize.
The profit percentages usually will vary between the alternate games and a couple of the highly acclaimed casinos, for instance Golden Online Casino, which tenders a payout rate of up to 95 per cent!
Thus, in essence, the slot machine game takes all the currency played into it and pays it out to a number of chosen winners. The casino only gets to keep a relatively small percent of all the bets placed.
The casino slot machine software controls every part of the machine, from the flashing lights to the rotating of the reels.
When you hit spin on the slot machine game, a combination is formed by the RNG which corresponds to the pictures on the reel.