Our Methodology
How we review slots
Every slot review on demo.com follows a standardised testing methodology that ensures transparency and reproducibility.
Testing process
- Hands-on test: At least 500 spins in demo mode
- RTP verification: Cross-referencing stated RTP with manufacturer data and independent sources
- Feature test: Systematic testing of all bonus features
- Mobile test: Testing across various mobile devices
Rating criteria
- RTP & Maths: Payout rate, volatility, hit frequency
- Gameplay: Game mechanics, features, entertainment value
- Design: Graphics, sound, mobile optimisation
- Fairness: Certifications, licences, rule transparency
Data sources
- Official manufacturer data (RTP, volatility, max win)
- Our own hands-on testing in demo mode
- Certifications from independent testing labs (MGA, UKGC, GLI)
Independence
Our reviews are editorially independent. Affiliate partnerships do not influence our test results or ratings.
Last updated: February 2026