How do RNGs (Random Number Generators) work in online casino games?

Online casino RNGs rely on mathematical formulae to emulate randomness, the way a shuffled deck does. What matters is that outcomes cannot be predicted in advance. Online casino operators typically employ mathematical formula known as pseudo-random number generators (PRNG). They require a random number – the seed – to kick-start the process. This could be provided by any unpredictable physical process such as when a player clicks on a mouse.

So finally, the elephant in the room: Are they legitimate? Legitimate casinos have their RNGs tested independently by organizations such as eCOGRA or iTech Labs, which review their code to make sure that the outcomes are genuinely random - much like a linesman in a sports match. The certifications should be readily available on the casino's website.

It’s all open and above board. There’s no need to trust the casino – you can trust its audits. And no one knows the next result any more than you do. Everyone is on an equal footing. If you are playing at a bona fide online casino, you are getting the same randomness as everyone else. Do not count on making a profit. It’s a gamble!

Online casino RNGs are mathematical programs that create random results, just like a coin toss or dice roll, by taking seed numbers and applying complicated formulas. In essence, the RNG assures fairness because it doesn’t remember past events; the outcome of any spin or roll has no influence whatsoever on the next one. Third parties, including eCOGRA, provide certifications to prove that the RNG does its job.