Modern casino slot games are controlled by computer chips and software, and the win %s are pre-programmed into the software.
Casino slot machines have Random Number Generators that are constantly generating combos, even when the slot machine is not active.
Running synchronously with the RNG of the casino slot machine game is the pay out rate percent.
The pay out per cent controls how much the one-armed bandit will payout, for eg the payout % could be ninety per cent, 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 doesn’t mean that each and every time you bet 10 credits you will receive 9 in return – where is the fun and excitement in that? Instead, the casino slot will not pay out for a while, and then suddenly jump on a hot streak and you might hit a big pot prize.
The payout %s will definitely vary between the differing games and just a few of the very popular casinos, for example Golden Online Casino, which provides a payout rate of up to ninety-five %!
Hence, in essence, the one-armed bandit takes all the funds played into it and pays it out to a handful of fortunate winners. The casino only gets to keep a fairly small percentage of all the bets allocated.
The casino slot software controls every part of the machine, from the flickering lights to the revolving of the reels.
When you hit spin on the one-armed bandit, a combination is put together by the RNG which associates with the pictures on the reel.