Modern casino slot machines are controlled by computer software, and the winning percentages are pre-programmed into the game software.
Casino slot games have RNGs which are ceaselessly generating combos, even when the game is not active.
Running synchronously with the random # generator of the casino slot machine is the payout rate percent.
The payout percent controls just how much the slot machine will payout, for eg the payout percent may be ninety percent, meaning the slot game will payout 90% of all the bets played, and the casino will then get to keep 10%.
This doesn’t mean that each time you bet ten credits you will receive nine in return – where’s the fun and thrill in that? Instead, the casino slot machine game just will not payout for a bit, and then suddenly go on a hot streak and you might catch the big top prize.
The pay off %s will definitely vary between the different games and several of the very common casinos, for example Golden Online Casino, which puts forth a payment of up to ninety five percent!
So, in essence, the one-armed bandit takes all the cash played into it and pays it out to a couple of lucky winners. The casino only gets to keep a relatively small per cent of all the gambles put out.
The casino slot software controls every part of the machine, from the blinking lights to the rolling of the reels.
When you hit spin on the one-armed bandit, a combination is put together by the RNG which connects with the pictures on the reel.