RNG (random number generator)
What is RNG (random number generator)?
An RNG (Random Number Generator) is the algorithm that determines the outcome of every spin in a digital slot machine. It continuously generates sequences of numbers, and the value at the exact moment the player presses spin determines the displayed combination. Each spin is fully independent of all previous and future spins.
How it works technically
The RNG used in slot machines is a pseudo-random number generator (PRNG): it produces sequences of numbers that are sufficiently unpredictable to simulate true randomness, starting from an initial seed value. Results are mathematically independent, meaning the outcome of one spin has no influence on the next.
Certification and oversight
The RNGs in licensed games are tested and certified by accredited independent laboratories such as eCOGRA, iTech Labs, or GLI. These audits verify that outcomes match expected statistical distributions and that the game complies with the regulations of the relevant jurisdiction.
Common misconceptions
There is no cycle in which a machine “must win” after a long losing streak. Every spin starts fresh with no memory of previous results. Patterns that appear meaningful - clustered wins or extended dry spells - are normal statistical phenomena in any random process.