Modern casino one armed bandits are controlled by a computer, and the winning percentages are pre-programmed into the game software.
Casino slot games have Random Number Generators which are continually generating combos, even when the game is not active.
Running in unison with the random # generator of the casino one-armed bandit is the pay out rate percent.
The pay out per cent controls how much the slot machine game will pay, for eg the pay per cent might be 90%, which means the slot game will payout 90% of all the stakes played, … the casino will then get to keep 10%.
This does not mean that for every time you bet 10 credits you will receive nine in return – where is the fun … exhilaration in that? Instead, the casino slot machine game will not pay out for a bit, and then suddenly go on a hot streak and you might catch the big pot prize.
The pay out %s will most likely vary between the alternate games and several of the most common casinos, for example Golden Online Casino, which provides a pay out rate of up to ninety-five percent!
Therefore, in essence, the one-armed bandit takes all the money played into it and pays it out to a few chosen winners. The casino only gets to keep a considerably low per cent of all the odds allocated.
The casino one armed bandit software controls any part of the machine, from the flashing lights to the circulating of the reels.
When you hit spin on the slot machine game, a combination is generated by the RNG which associates with the pictures on the reel.