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Games · 01
Random number generators
Digital casino games use a random number generator (RNG) to produce results. It runs continuously, and the value at the moment of your bet decides the outcome, such as which symbols land or which card is dealt.
A properly built RNG cannot be steered by timing, past results or the size of your stake.
Games · 02
Independent testing laboratories
Specialist test labs examine a game's RNG and maths before release, checking that results are unpredictable and that the stated RTP matches the design. Many regulators require this testing as a condition of approval.
Testing applies to a specific game version. If an operator or studio changes the game, it should be tested again.
Games · 03
Reading a test certificate
If Siti88 or a studio publishes a certificate, check these details rather than just the logo.
- The name of the testing laboratory and a way to confirm it on the lab's own site.
- The game or platform covered, with a version or reference number.
- The date of the test and whether it has an expiry or review date.
- The RTP or scope of testing that the certificate actually confirms.
- That the certificate names the same studio and game you are playing.
Games · 04
Steps to check fairness yourself
You cannot test an RNG at home, but you can check that the right safeguards are in place.
- Open the game panel and note the studio name and stated RTP.
- Look for a testing or certification link on the site or in the footer.
- Follow the certificate back to the laboratory and confirm it is genuine.
- Check the operator's published licence details and the law where you live.
- Keep your bet history so any disputed round can be traced by ID.
Games · 05
Warning signs worth noting
Be cautious if a game opens on an unrelated domain, shows no studio name, or has no rules or paytable. A certificate image that cannot be traced to a laboratory site offers no real assurance.
Unusual streaks alone are not proof of unfairness, because genuine random results produce runs that feel strange. Focus on whether the game can be identified and checked.
Questions
Frequently asked questions
Can an operator change a game's results?
A tested game's outcomes are set by the studio's RNG and maths, which the operator should not be able to alter. Testing and licence conditions are designed to detect any such change.
Is a provably fair game the same as a tested one?
No. Provably fair lets you check that a single round was not altered after it was set, while lab testing reviews the whole game design and RNG. They answer different questions.
Why do I keep losing if the game is fair?
Fair means random with a known house edge, not balanced in your favour. Every game is designed to keep a share of stakes over time.
Next step
Choose a game, open its rules panel and set your limit before you play.
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