Modern casino Slots are controlled by computer chips and software, and the winner percentages are pre-programmed into the game software.

Casino slot machine games have RNGs that are eternally generating combos, even when the machine is not being played.

Running in unison with the RNG of the casino slot machine is the pay out per cent.

The pay out percent controls just how much the slot machine game will pay out, for e.g. the pay per cent might be ninety per cent, which means the slot machine will payout ninety per cent of all the bets played, … the casino only gets to keep 10%.

This doesn’t mean that each time you bet 10 credits you will receive 9 in return – where is the fun … excitement in that? Instead, the casino slot will not pay out for a little while, and then suddenly go on a hot streak and you might catch the big top prize.

The pay out %s will very likely vary between the various games and some of the very famous casinos, like Golden Online Casino, which gives a cash payment of up to 95 percent!

Therefore, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to several lucky winners. The casino only gets to keep a considerably tiny percent of all the odds allotted.

The casino slot software controls each part of the machine, from the flickering lights to the spinning of the reels.

When you hit spin on the one-armed bandit, a combination is set up by the RNG which associates with the pictures on the reel.