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

Casino slot machines have RNGs which are endlessly generating combinations, even when the slot machine game is not being played.

Running synchronously with the RNG of the casino slot machine game is the payout percent.

The payout percentage controls just how much the slot machine game will pay out, for e.g. the pay out % could be ninety percent, meaning the one arm bandit will payout ninety per cent of all the wagers played, … the casino only gets to keep 10 per cent.

This does not imply that each and every time you bet ten credits you will receive nine in return – where’s the fun … fascination in that? Instead, the casino slot machine will not payout for a bit, and then suddenly fire up a hot streak and you might catch the big jackpot prize.

The pay off percentages will most likely vary between the differing games and some of the very common casinos, for e.g Golden Online Casino, which gives a payout rate of up to ninety-five per cent!

As a result, in essence, the slot machine game takes all the currency played into it and pays it out to a handful of chosen winners. The casino only gets to keep a generally low % of all the plays allotted.

The casino slot 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 generated by the RNG which corresponds to the pictures on the reel.