How casino games are tested: what a laboratory actually examines

What gets tested

Two things. First, the random number generator: whether outcomes are genuinely unpredictable and evenly distributed, tested statistically over very large samples. Second, whether the game as built matches its declared mathematical model — that the advertised return corresponds to what the software actually does.

Testing happens before launch, after significant changes, and on an ongoing basis under most frameworks. A certificate with an old date covers software that may since have been updated.

The laboratories you will encounter

Gaming Laboratories International operates as a pure engineering testing house, covering RNG testing, game mathematics, security assessment and regulatory compliance across dozens of jurisdictions.

BMM North America — the entity name on the Ontario register, part of the group trading internationally as BMM Testlabs — is particularly associated with return-to-player verification, with mathematicians analysing odds and payout structures.

eCOGRA offers RNG and RTP testing, product and platform certification, alternative dispute resolution and a seal programme.

The AGCO publishes the full list of laboratories it has registered for Ontario play. It carried eight when we read it: alongside the three above, Gaming Associates Europe, Eclipse Compliance Testing, Global Lab, Riskcherry and Quinel. Two things follow that are worth stating plainly. A laboratory can be famous internationally and still not be on Ontario's list — iTech Labs, which appears in a great deal of casino content, is not on it — and the AGCO says more may be added, so the list rather than any article is the thing to check.

The whole list, because the useful fact is which names are NOT on it. A laboratory can be real, respected and cited across the industry and still not be registered in Ontario.

1. BMM North America
2. Eclipse Compliance Testing
3. eCOGRA
4. Gaming Associates Europe
5. Gaming Laboratories International
6. Global Lab Ltd.
7. Lean Lab Company Limited o/a Riskcherry
8. Quinel Ltd

Read from the AGCO's published register of independent testing laboratories on 29 July 2026. The AGCO states further laboratories may be registered later, so this is a dated reading rather than a permanent list.

A correction worth making explicitly

A confident claim circulates widely in casino content: that eCOGRA dissolved in 2021 and that no active certifications exist. It is false. The organisation is operating, headquartered in the United Kingdom, founded in 2003, and publishes its service lines openly.

We mention it on this page rather than in a footnote because it is the clearest illustration of why our rubric reads primary documents and never other affiliate sites. A scoring system built by reading affiliates would have absorbed that error and quietly penalised every operator using them.

What a certificate does not cover

It certifies the game, not the operator. A tested game running at a badly run casino is still a tested game, and the certificate says nothing about whether that casino will pay you.

It also covers a specific version at a specific date. And it says nothing about the operator's configuration choices where a game ships with selectable return settings — which is precisely why the verification that matters is of the version actually running, not the supplier's headline figure.

Live dealer is a different problem

With a physical wheel or a real deck there is no generator to test statistically. What is audited instead is the equipment, the studio procedures and the software that records and settles results.

That is broader and harder to inspect than a piece of code, so the question shifts from "was the generator tested" to "who audits the studio, and how often". Far fewer operators can answer it, and it is worth asking.

How this maps to our scoring

Game fairness carries fifteen of our hundred points, and they are awarded on the strength of the evidence rather than on the operator's word. A laboratory logo is not evidence — logos are trivially copied — and a claim that games are "regularly tested" is not a source.

Eleven of the fifteen go to an operator on a Canadian register, because certification by an AGCO-registered laboratory is a written condition of that registration rather than a marketing line. The last four wait on a certificate we can open ourselves, and no operator holds them today: none of the registered laboratories publishes a public certificate directory, and operator-hosted copies are usually behind a login. An operator with no Canadian registration and no certificate scores zero here. See how to verify a certificate and our sources.