How We Rate Casinos

At Slots Not on GamStop, we've developed a comprehensive methodology to evaluate and rate online casinos, helping UK players find trustworthy platforms outside the GamStop self-exclusion scheme. Our ratings are based on rigorous testing and analysis across multiple criteria.

1. Licensing & Regulation

We prioritize casinos that hold valid licenses from recognized regulatory bodies. Our assessment includes verification of:

• Malta Gaming Authority (MGA) licenses
• UK Gambling Commission (UKGC) licenses
• Curaçao eGaming licenses
• Other reputable local jurisdictional licenses

Casinos without verifiable licensing from established regulators receive significantly lower ratings, regardless of other strengths. We verify license numbers directly with issuing authorities.

2. Game Selection & Software Providers

We evaluate the breadth and quality of gaming options, including:

• Slot game variety and number of titles available
• Live casino offerings (roulette, blackjack, baccarat, poker variants)
• Table games and specialty games
• Software provider partnerships (NetEnt, Pragmatic Play, Evolution Gaming, Microgaming, etc.)
• Frequency of new game releases and updates
• Return-to-player (RTP) rates and game fairness

3. Bonus Terms & Wagering Requirements

We thoroughly examine promotional offers and their conditions:

• Clarity and fairness of bonus terms and conditions
• Wagering requirements (we flag unreasonably high rollover requirements)
• Maximum cashout limits on bonus winnings
• Game weightings (contribution percentages to wagering requirements)
• Validity periods for bonuses
• Withdrawal restrictions during bonus play
• Availability to UK players and applicable restrictions

Casinos with transparent, player-friendly bonus terms receive higher ratings than those with hidden conditions or exploitative requirements.

4. Payment Methods & Withdrawal Speed

We assess the financial accessibility and efficiency of transactions:

• Available deposit methods (bank transfers, debit/credit cards, e-wallets, cryptocurrency)
• Minimum and maximum deposit amounts
• Withdrawal method options and availability
• Average withdrawal processing times (we test actual withdrawals)
• Currency support (GBP transactions)
• Transaction fees and hidden charges
• Cryptocurrency payment options and processing speed

Casinos offering multiple withdrawal options with fast processing times (24-48 hours) score higher in this category.

5. Customer Support

We evaluate the quality and accessibility of player support:

• 24/7 availability of customer service channels
• Live chat responsiveness and quality (we test with real inquiries)
• Email support response times
• Telephone support availability
• Knowledge base and FAQ comprehensiveness
• Support for UK players and time zone appropriate responses
• Multiple language support

We test customer support personally and consider responsiveness, helpfulness, and professionalism in our ratings.

6. Mobile Experience

We assess the casino's performance on mobile and tablet devices:

• Responsive design that adapts to all screen sizes
• Availability of dedicated iOS and Android applications
• Mobile site loading speed and navigation
• Game functionality on mobile platforms
• Ease of account access and transactions on mobile
• User interface design and intuitiveness

With most gambling now occurring on mobile devices, casinos with optimized mobile experiences receive higher ratings.

7. Responsible Gaming Tools

We examine the casino's commitment to player protection:

• Deposit limit functionality (daily, weekly, monthly)
• Self-exclusion options with varying time periods
• Cooling-off periods available
• Reality check reminders during gameplay
• Loss limit settings
• Gambling problem awareness resources and links to support services
• Account closure options
• Verification of player age and identity checks

Casinos demonstrating genuine commitment to responsible gaming with easily accessible tools score significantly higher, as this is crucial for player safety.

8. Our Rating Scale

We rate casinos on a scale of 1 to 10:

• 9-10 (Excellent): Outstanding across all criteria. Fully licensed, excellent game selection, fair bonuses, fast withdrawals, responsive support, excellent mobile experience, and strong responsible gaming tools.
• 7-8 (Very Good): Strong performance in most areas. Minor weaknesses in one or two categories but overall trustworthy and player-friendly.
• 5-6 (Good): Adequate performance but notable weaknesses in important areas. May have licensing concerns, lower game variety, slower withdrawals, or limited support options.
• 3-4 (Fair): Significant issues in multiple categories. May lack proper licensing, have poor customer support, limited payment options, or unfair bonus terms. Exercise caution.
• 1-2 (Poor): Serious concerns regarding legitimacy, licensing, fairness, or player protection. Not recommended.

No single factor determines a casino's overall rating; instead, we apply weighted scoring with licensing and regulation carrying the highest importance. A casino cannot achieve a rating above 5 without proper licensing, regardless of other strengths. Our ratings are updated regularly as casinos change their terms, add new features, or modify their operations.