RNG testing methods

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RNG testing methods

Explains how we evaluate game fairness via RNG testing for slot and table titles, which documents we accept, and how results impact our reviews.

RNG basics

Online games use software PRNGs certified by independent labs. We benchmark against NIST SP 800-22 for statistical testing and GLI-11 for device/software conformance to ensure unpredictability and independence of outcomes.

How we test

Papers & metadata: certificates, build/version IDs, audit scope, math sheets.
Sampling & stats: frequency/run tests, autocorrelation scans, long-window RTP drift checks; we validate randomness, not payout advantage.

Table: Evidence we accept

Evidence	What we verify	What qualifies
Lab certificate	Validity, version coverage	Current GLI/iTechLabs (or equivalent) naming the tested build
Test report	Methods, sample size, p-values	Reproducible NIST-suite results in tolerance
Game math	RTP/variance	Stable long-window conformity to published math

Kazakhstan note

Certification ≠ authorization to operate online casino content in KZ; advertising/promotion is regulated and tightened since 2024–2025. Our RNG page is informational.