Modern casino slot machine games are controlled by computer chips and software, and the win percentages are preprogrammed into the game software.
Casino slot machine games have Random Number Generators which are eternally generating combos, even when the slot machine game is not being played.
Running simultaneously with the RNG of the casino one-armed bandit is the payout rate %.
The pay out % controls how much the slot machine game will pay out, for e.g. the pay percent could be ninety per cent, which means the slot game will payout ninety percent of all the bets played, and the casino gets to keep ten percent.
This does not imply that each time you bet ten credits you will receive nine in return – where is the fun … fascination in that? Instead, the casino slot machine game won’t payout for a little while, and then suddenly jump on a hot streak and you might draw the big grand prize.
The profit %s will very likely vary between the different games and some of the extremely acclaimed casinos, for e.g Golden Online Casino, which hands out a payout of up to 95 percent!
Therefore, in essence, the slot machine takes all the dough played into it and pays it out to several lucky winners. The casino only gets to keep a basically low percent of all the plays put out.
The casino slot software controls each and every part of the machine, from the flashing lights to the circulating of the reels.
When you hit spin on the slot machine, a combination is generated by the RNG which connects with the pictures on the reel.