It’s a computer program that spits out results (seemingly) at random.
There are different types of RNGs. The ones casinos use are called pseudo random number generators. What makes these unique is that they don’t need any external input (numbers or data) to produce an output. All they need is an algorithm and seed number.
Depends on where you play on what that casino is gonna risk, see most states that allow gambling make rules the casino has to abide by if Online roulette, roulette games on the FOBT's (bookies machines) and any other Both bookmakers claim the RNG is totally random and fair. Roulette is one of the most popular table games found in land based casinos around the world and online roulette is no different. There are plenty of top sites to play roulette online, with several versions usually on offer.
New seed numbers (and results) are produced every millisecond. This is done simply by taking the last number or two produced and then using a mathematic operation (addition, subtraction, multiplication, division, etc.) to create a new ‘random’ outcome.
But because there’s nothing random about mathematic operations – i.e. 1+1 will always equal 2 – a certain input will always yield the same output. That’s why RNGs aren’t truly random.
It’s also the reason why RNGs are hackable. Algorithms (and their operations) are fixed.
And there are only so many known algorithms in the world. If someone knew what algorithm(s) and seed number(s) casinos used, they could use that information to cheat the casinos out of millions of dollars.
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We’ll show you an example later on of someone that did just that.