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

Casino slot games have Random Number Generators that are continually generating combos, even when the slot machine game is not being played.

Running concurrently with the Random Number Generator of the casino one-armed bandit is the payout rate per cent.

The payout percent controls how much the slot machine game will pay, for example the payout percentage could be ninety per cent, which means the slot machine game will pay ninety percent of all the wagers played, and the casino only gets to keep 10%.

This does not imply that each time you bet ten credits you will receive 9 in return – where’s the fun and excitement in that? Instead, the casino slot will not payout for a bit, and then suddenly hit a hot streak and you might hit a big pot prize.

The pay off percentages will most likely vary between the various games and a few of the very established casinos, e.g. Golden Online Casino, which tenders a cash payment of up to 95 per cent!

So, in essence, the slot machine takes all the dough played into it and pays it out to a number of fortunate winners. The casino only gets to keep a averagely petite % of all the gambles made.

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

When you hit spin on the one-armed bandit, a combination is generated by the RNG which corresponds to the pictures on the reel.