Modern casino slot machines are controlled by computer software, and the win %s are pre-programmed into the gaming software.

Casino one armed bandits have Random # Generators that are continually generating combinations, even when the slot machine is not active.

Running simultaneously with the RNG of the casino slot machine is the payout per cent.

The payout per cent controls how much the slot machine will pay, for example the pay percent may be ninety percent, meaning the slot machine game will pay ninety per cent of all the wagers played, … the casino only gets to keep ten per cent.

This does not mean that every time you bet ten credits you will receive nine in return – where’s the fun and excitement in that? Instead, the casino slot won’t pay out for a while, and then suddenly jump on a hot streak and you might draw the big grand prize.

The payout percentages usually will vary between the alternate games and a couple of the very famous casinos, for instance Golden Online Casino, which offers a pay out rate of up to ninety five percent!

So, in essence, the slot machine game takes all the $$$$$ played into it and pays it out to some fortunate winners. The casino only gets to keep a relatively small % of all the gambles put out.

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

When you hit spin on the slot machine game, a combination is set up by the RNG which connects with the pictures on the reel.