RNG

An RNG (Random Number Generator) is the software algorithm that produces the unpredictable outcomes of casino games — every spin, card draw and dice roll in an online game is resolved by an RNG rather than by physical chance.

Online gaming uses pseudo-random number generators: deterministic algorithms seeded with entropy, designed so outcomes are statistically random and cannot be predicted or manipulated. Regulated markets require the RNG to be tested and certified by an independent laboratory (GLI, eCOGRA, BMM and similar) against standards such as GLI-19, covering statistical randomness, seeding, scaling and cycling.

For operators, the practical points are:

• RNG certification belongs to the game or platform supplier, but the operator must evidence it to the regulator for every live game;
• certificates are jurisdiction-specific — a game certified for one market is not automatically approved in another;
• live casino replaces the RNG with physical dealing, which is why it is certified differently.

Why it matters: RNG integrity is the foundation of game fairness, and regulators treat any uncertified or modified RNG as a serious breach. Keeping certification records synchronized with your live game catalogue is a core compliance task — one a good game aggregator automates.