Modern casino slot games are controlled by computer software, and the winning percentages are preprogrammed into the software.
Casino one armed bandits have Random Number Generators which are continually generating combos, even when the slot machine game is not currently being played.
Running concurrently with the random # generator of the casino slot machine game is the pay out rate percentage.
The payout percent controls just how much the one-armed bandit will payout, for e.g. the pay percent might be ninety percent, which means the slot game will pay out ninety percent of all the stakes played, and the casino 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 … thrill in that? Instead, the casino slot machine just won’t payout for a while, and then suddenly go on a hot streak and you might draw the big pot prize.
The pay off percentages usually will vary between the a variety of games and just a few of the most common casinos, e.g. Golden Online Casino, which puts forth a pay out of up to 95 percent!
Therefore, in essence, the slot machine game takes all the money played into it and pays it out to a few privileged winners. The casino only gets to keep a relatively indistinct per cent of all the wagers put out.
The casino slot software controls each part of the machine, from the flashing lights to the spinning of the reels.
When you hit spin on the slot machine, a combination is generated by the RNG which is linked to the pictures on the reel.