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This independent comparison website helps consumers choose the best available gambling product matching their needs. We offer a high-quality advertising service by featuring only established brands of licensed operators in our reviews. Please note that although we endeavour to provide you with up-to-date information, we do not compare all operators on the market.

REVIEW: 21 Casino UK

By Momchil Chonov Gambling Expert & Content Lead
Our Contributors
Last Update: September 2026
Major Updates
  • Updated May 18, 2026: Fact check, content and expert score update.
  • Updated Nov 17, 2025: Fact check and expert reviews update.
  • Updated Aug 22, 2025: Review published publicly.
  • Updated Aug 15, 2025: Review privately published for internal review.
  • Updated Aug 07, 2025: Primary reviewer started individual assessment.
  • Updated Jul 31, 2025: Experts and contributors began hands-on testing.
  • Updated Jul 25, 2025: Research process initiated.
Overall Score
How does it work:

The Casino.net Overall Score is calculated automatically and based on hard facts about the operator, as well as on expert and user opinions.

Score Components and Weight:
  • 30% Casino.net Algo
  • 30% Expert Ratings
  • 30% User Ratings
  • 10% Web Ratings
How 21 Casino Compares:

21 Casino has a Casino.net Overall score higher than 66% of all reviewed UK casinos.

Overall Score Distribution:
 7.2/10 or 72% High Score Naming: High The Casino.net Overall Score is calculated automatically and based on hard facts about the operator, as well as on expert and user opinions. by Casino.net
Bonus Up to 70 Bonus Spins on Book of Dead
Link Get Offer
Other Casinos 21 Casino Bonus
Full T&Cs Apply. 18+. New players only. Welcome Offer is 70 Book of Dead Bonus Spins available with a min. £15 first deposit. Bonus Spins must be used within 10 days. Any winnings from Bonus Spins will be added as Bonus Funds. There are wagering requirements for players to turn these Bonus Funds into Cash Funds. This is 10 times the value of the Bonus Funds. Only bonus funds count towards wagering contribution. Affordability checks apply. Terms apply. Please gamble responsibly. GambleAware.org
Licence No. 52894 Issued on 2018-10-29
All Ratings
Slots: 2200+
Slots
The 21 Casino slot selection features more games than 31.2% of the casinos we review for the UK. The median RTP of 21 Casino slots is higher than 36.1% of operators featured on casino.net. The Slots RTP represents the median RTP of all slots listed at the casino.
Slot RTP: 96%
Payout: 1 - 10 Days
Software:
Payments:
UK Players Accepted
Rate 21 Casino
Drag & Drop
21 Casino in the App Store

What We Don’t Like

  • Limited Live Casino Game Variety
  • No Filters for Slot Providers or Game Features
  • Minimal Social Media Presence
  • Vague Terms on Account Closure
  • £1.3M UKGC Settlement (2021), Improvements Made Since

Our Recommendations

  • Expand the Live Dealer Offerings
  • Revitalise and Grow Social Media Engagement
  • Enhance Image Optimisation
  • Add Jackpot Counters
Page Content
Know your limits Gamble Responsibly 18+
  • Keeping gambling fair and safe for all
  • Promoting and supporting responsible gambling
  • Testing online gambling safety and fairness since 2003

21 Casino Features and Comparison

Ranked 34th by overall score out of 101 reviewed UK online casinos.

21 Casino in the App Store
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Website 21casino.com
Online Since 2018
Casino Type Instant Play, Mobile
Network White Hat Gaming Limited
Licences 52894, UK Gambling Commission
Welcome Bonus Up to 70 Bonus Spins on Book of Dead
Wagering 10x
Min Deposit £10
Max Deposit Not published
Max Withdrawal Unlimited
Max Withdrawal Monthly Not published
Max Withdrawal Daily Not published
Number of Games 2400+
Number of Slots 2200+
RTP 96.10
Slots RTP 96% Slots RTP The Slots RTP represents the median RTP of all slots listed at the casino.
Bonus Cashout Limit Not published
Payout Speed 1 - 10 Days
PayPal Accepted Yes
Compatible Devices Android, iOS, Windows, and macOS
Awards Platform Provider of the Year 2022 SBC Awards, Industry Innovation of the Year 2022 SBC Awards, White Label Supplier of the Year 2021 SBC Awards
Customer support FAQ, Email, Live Chat
Company White Hat Gaming Limited
Sister Sites 21Prive Casino, 247Bet, Bettarget, Casiku, Casimba, Diamond 7 Casino, Dream Vegas, FireVegas, G'Day Casino, Griffon Casino, Hello Casino, Hopa, Huikee, Huippu Casino, Jackpot Village, Karamba, Miami Dice, Pelataan, PlayGrand Casino, Playzee, Simppeli, Skol Casino, Slotnite, Spin Rider, Spin Station, Spinland, SpinYoo, Temple Nile, The Grand Ivy, Toppz
Affiliate programme 21 Affiliates, Casimba Affiliates, EAffiliates, OneUp Affiliates, PlayGrand Affiliates, Superfly Partners, Superfly Partners Program, White Hat Gaming Affiliate, Zee Partners, ZeePartners
Manual Flushing Yes
KYC Verification Yes

21 Casino Media

  • 21 Casino Home Page on Mobile

    21 Casino Home Page on Mobile

  • 21 Casino Slots on Mobile

    21 Casino Slots on Mobile

  • 21 Casino Table Games on Mobile

    21 Casino Table Games on Mobile

  • 21 Casino Live Casino on Mobile

    21 Casino Live Casino on Mobile

  • 21 Casino Home Page on Desktop

    21 Casino Home Page on Desktop

  • 21 Casino Slots on Desktop

    21 Casino Slots on Desktop

  • 21 Casino Table Games on Desktop

    21 Casino Table Games on Desktop

  • 21 Casino Live Casino on Desktop

    21 Casino Live Casino on Desktop

Ratings Breakdown

The score is based on the following components, each with its respective weight:

Casino.net Algo

The Casino.net Algorithm is automatically calculated using objective data about the casino. Below is the score for 21 Casino based on all criteria:

Casino.net Algo Score: 6.5/10

21 Casino has a higher Casino.net Algo score than 25% of the casinos we review for the UK.

6.5/10 6.5 points out of 10
Safety + 2.5 points
Games + 0.7 points
RTP + 0.4 points
Bonus + 0.8 points
Payment + 0.8 points
User Experience + 0.9 points
Reputation and Awards + 0.4 points
Our Criteria How 21 Casino Scored
Geo Licence
+ 1.5
 21 Casino holds a gambling licence.
Responsible Gambling Systems
+ 0.5
 21 Casino offers responsible gambling tools.
Safety Technology and Privacy Protection
+ 0.5
 21 Casino uses HTTPS, has cookie warning, customisable cookie settings, password protection and follows GDPR privacy standards.
Safety & Responsible Gambling + 2.5 points
Criteria How 21 Casino Scored
Number of Games
+ 0.1
 21 Casino has fewer games than 50% of the casinos we review for the UK.
Number of Slots
+ 0.1
 21 Casino has fewer slots than 50% of the casinos we review for the UK.
Number of Live Games
+ 0.3
 21 Casino offers the most popular live casino games, including blackjack and roulette.
Number of Software Providers
+ 0.2
 21 Casino has games by more software providers than 50% of the casinos we review for the UK.
Games + 0.7 points
Criteria How 21 Casino Scored
Overall RTP
+ 0.3
 21 Casino has an RTP of at least 96.00%. (RTP: 96.10%)
Slots RTP
+ 0.1
 21 Casino has better slot RTP than 36.1% of the casinos we review for the UK. (Slots RTP: 96.00%)
RTP + 0.4 points
Criteria How 21 Casino Scored
Welcome Bonus Max Amount
+ 0.3
 21 Casino offers at least 50 free spins.
Wagering Requirement
+ 0.5
 21 Casino clears its welcome offer at 10x, the ceiling this market allows.
Bonus Minimum Deposit
+ 0
 21 Casino accepts a bonus minimum deposit of £15, above our £10 benchmark for this market.
Bonus + 0.8 points
Criteria How 21 Casino Scored
Number of Payment Methods
+ 0.1
 21 Casino offers fewer than 10 payment methods
Fastest Withdrawal Time
+ 0.3
 21 Casino offers withdrawals within 1 day for selected payment methods.
Minimum Deposit
+ 0.1
 21 Casino accepts a minimum deposit of £10, at or below our £10 benchmark for this market.
Maximum Deposit
+ 0
 21 Casino does not specify a maximum deposit.
Cashout Limits
+ 0.1
 21 Casino does not cap withdrawals. (Security checks might apply.)
Currencies
+ 0.1
 21 Casino accepts £.
PayPal Accepted
+ 0.1
 21 Casino accepts PayPal.
Payment + 0.8 points
Criteria How 21 Casino Scored
Customer Support Availability
+ 0.3
 21 Casino offers 24/7 customer support.
Customer Support Methods
+ 0.2
 21 Casino offers customer service but not both live chat and phone support.
Compatible Devices
+ 0.2
 21 Casino works well on most popular devices.
Languages
+ 0.2
 21 Casino supports more than two languages.
User Experience + 0.9 points
Criteria How 21 Casino Scored
Casino Awards
+ 0.4
 21 Casino has two or more awards on record.
Other Products
+ 0
 21 Casino offers only a casino.
Public Company
+ 0
 21 Casino is not a public company.
Reputation and Awards + 0.4 points

User Ratings

There is only one player review. Be the next one to give your opinion.

What do you think
Rate 21 Casino
9.2 9.2 out 10 (based on 1 vote)
  • 9-10 1 (100%)
  • 7-8 0 (0%)
  • 5-6 0 (0%)
  • 3-4 0 (0%)
  • 1-2 0 (0%)

Web Ratings

Here's how 21 Casino is rated across popular online platforms. We've averaged the available scores to give you an overall Web Rating.

Website Score Translating into score out of 10
App Store Not listed Not listed
Play Store Not listed Not listed
Ahrefs Domain Rating 58/100 5.8/10
Lighthouse Metrics

Lighthouse scores measure page quality, including speed, accessibility, and best practices, to show how well this site performs for visitors.

 78.75/100 7.9/10
Trustpilot 1.7/5 3.4/10
Reviews.io Not listed Not listed
Average Web Score: 5.7/10
Quotes from around the net:

  • “Had no problem with them. Pay outs when they said they would.”

    SJ on Trustpilot

  • “Withdrew funds within 48h, customer support were helpful.”

    James Oliver on Trustpilot

  • “I’ve made two withdrawals and both were in my account in under 24 hours.”

    Paul Rosser on Trustpilot

  • “This site has lag on live casino.”

    Gamer aboli se on Trustpilot

  • “I was payed out within 2 days. Very good casino!”

    Raj Singh on Trustpilot

  • “Excellent site, takes responsible gaming EXTREMELY seriously.”

    Nosey Parker on Trustpilot

  • “Easy withdrawals and is definitely RELIABLE!”

    Zee on Trustpilot

  • “So far I like the games and I got some winnings, good for me.”

    Jamie Cole on Trustpilot

  • “The withdrawal time is so slow compared to all the other sites.”

    Shannon Matthews on Trustpilot

  • “Requested a withdrawal and it reached my PayPal account within 20 minutes.”

    Ian Fisher on Trustpilot

Expert Opinions

Slots Expert's Opinion
Lindsey Jones - Slots Expert
Lindsey Jones Slots Expert
Lindsey has over 5 years of experience as a content writer in the igaming industry.
Live and Table Games Expert's Opinion
Nikola Antonov - Live and Table Games Expert
Nikola Antonov Live and Table Games Expert
Nikola started working as a senior content writer in 2019, and since then, he has created numerous online casino reviews and articles about gambling in different countries.
Social Media Expert's Opinion
Manuela Nikolova - Social Media Expert
Manuela Nikolova Social Media Expert
Manuela Nikolova serves as the dedicated social media reviewer for casino.net, providing expert analysis on how gambling brands engage with players and build trust across various platforms.
Legal Expert's Opinion
Momchil Petrov - Legal Expert
Momchil Petrov Legal Expert
With over a decade of legal experience in the online gambling industry, Momchil specialises in advising key stakeholders, including operators, providers, and affiliates, on compliance, licensing, and regulatory strategy.
IT Expert's Opinion
Plamen Spahiev - IT Expert
Plamen Spahiev IT Expert
Plamen is a seasoned IT expert with over 20 years of experience leading technical teams and designing secure, high-performance systems.

Slots Expert's Opinion

Our slot expert judges a casino on the breadth of its reels, the studios it partners with, and how quickly a favourite can be found. Licensed games, prize pools and seasonal missions round out the picture.

What I like:
  • Large Game Library with Regular Releases: 21 Casino boasts a large, up-to-date slot library featuring over 2200+ titles. New games from top providers are added often, making sure players always have something new to try.
  • Top Software Developers: Players get access to slots from over 100 developers, including respected and well-known studios like NetEnt, Big Time Gaming, Play 'n GO, Red Tiger, and Blueprint. This guarantees quality gameplay, graphics, and features.
  • Good Amount of Progressive Jackpots: Major progressive slots like Mega Moolah, Divine Fortune, and Hall of Gods are available, giving players a chance at massive wins.
  • Great Catalogue Navigation: The game lobby is divided into categories (New, Popular, Jackpots, etc.), making it relatively easy to browse. New game releases are also clearly highlighted.
  • Key Slot Details at a Glance: When you hover over a slot in the game lobby, you'll see an overview of the volatility, reels, win lines, and provider. These useful details can help players quickly decide if the slot matches their playing style.
What I don't like:
  • No Feature Filter: While categories are helpful, there's no way to filter by features (e.g. Megaways, Free Spins), which restricts usability for advanced players.
  • Lack of Tournaments and Slot-Specific Promotions: Currently, there are no tournaments, duels, missions, or achievement-based gamification features to engage slot players either competitively or socially. Unlike other sites, such as 888casino, 21 Casino does not offer many slot-specific promos, limiting slot fans who want to play with a bonus.
  • No Jackpot Counters: The casino does not feature jackpot counters alongside its progressive slots in the game lobby. That means players cannot see the current prize without launching a game.
My recommendations:
  • Add More Filter Options: Allow players to sort slots by volatility, game type (e.g., Megaways, jackpots), or themes to improve the user experience.
  • Add Tournaments and Missions: Slot duels, seasonal missions, or leaderboard challenges would add to the overall appeal of the platform and create a sense of community.

Live and Table Games Expert's Opinion

Our live and table games expert assesses how deep the table catalogue runs and how good the live dealer streams are. Minimum and maximum stakes, table access at peak times, navigation and side features all feed into the verdict.

What I like:
  • Suitable Range of Betting Limits: The range of betting limits is fairly standard for the industry and offers considerable flexibility to players. Some roulette games accept minimum bets as low as 10p, while certain blackjack variants allow stakes of up to £5,000. Live roulette and blackjack tables offer even higher limits, making the site attractive for high-stakes players.
  • Leading Software Brands: 21 Casino partners with several of the most respected software providers in the iGaming industry. Here, you'll find top-quality table games from brands such as Evolution, Pragmatic Play, Real Gaming, Switch Studios, Games Global, and others. This allows the operator to maintain a diverse selection of high-quality game variations.
  • Good Variety of RNG Table Games: Compared to other popular brands on the UK market, 21 Casino stands out for its impressive variety of table games. The dedicated RNG section boasts over 80 different titles with excellent in-game features. Notable games include 20p Roulette, Classic Blackjack Gold Series, and European Roulette Platinum.
What I don't like:
  • Real Dealer Game Offerings: The live casino section lacks depth. Compared to other leading gambling sites, such as Grosvenor, 21 Casino's live offering is limited to around 35 titles. While most are powered by Evolution and Pragmatic Play, guaranteeing premium quality, I find the overall selection somewhat restrictive, especially for those seeking a more varied or interactive gaming experience.
My recommendations:
  • Improve Live Casino Section: Adding more real dealer games from a wider range of software providers would significantly enhance the brand's appeal. This would help overcome its current limitations and attract a broader spectrum of players with varying preferences.

Social Media Expert's Opinion

Our social media expert maps the operator's presence across each network and measures posting frequency and engagement. Audience size, growth trend, tone of voice and any dormant or absent accounts are all noted.

What I like:
  • 2.5K Followers on Facebook: This doesn't sound like much but compared to the brand's presence on other social media channels, it is. 21 Casino's Facebook page, although not actively maintained, provides a foundation for potential engagement.
  • Official Instagram Account: There's an Instagram account for 21 Casino with a humble following of 300-400 people. Similarly to Facebook, the page is not verified and is not actively managed. Still, it provides a platform for future engagement with players.
  • Potential for Social Media Expansion: The 21 Casino brand has significant potential for social media expansion. With the right content strategy and regular posting schedule, the casino could increase its following and strengthen its relationship with clients.
What I don't like:
  • Inactivity on Existing Social Media Accounts: 21 Casino is underusing its existing accounts on Facebook and Instagram. If we leave the potential for engaging existing and new players aside, some people might consider the inactivity a bad sign and end up choosing an alternative platform.
  • No Presence on Key Social Media Channels: The casino is missing out on popular social media channels like TikTok, YouTube, LinkedIn, and X. In this digital day and age, this is a significant disadvantage, especially compared to some of its competitors, such as Ladbrokes.
My recommendations:
  • Revitalise Facebook and Instagram Accounts: For starters, 21 Casino should prioritise its existing social media accounts. Increasing activity on Facebook and Instagram will help rebuild the connection with the existing audience and attract new followers.
  • Slowly Explore New Platforms: As a next step, the brand could start exploring other social media platforms, such as X and YouTube. This will give 21 Casino opportunities to become more easily recognisable and attract new players.

Legal Expert's Opinion

Our legal expert confirms who regulates the operator and how long the permission has been held. The terms are read closely for vague bonus-abuse wording, and the review covers player safeguards, ADR access, GDPR practice and past fines.

What I like:
  • Licensing and Regulation: 21 Casino holds valid licences from the UK Gambling Commission (Licence No. 52894, issued 29 October 2018) and the Malta Gaming Authority (Licence No. MGA/B2C/370/2017, issued 1 August 2018). It is operated by White Hat Gaming, meaning it shares the same licensing credentials as other casinos under its umbrella, such as Karamba.
  • Terms Structure: The General Terms & Conditions are comprehensive. They are logically ordered, with clear headings and up-front summaries aiding navigation. Changes to the T&C are notified to users, and there is clarity about precedence if terms conflict (section 1.1).
  • Responsible Gambling and ADR: 21 Casino outlines its safer gambling tools in the dedicated Responsible Gambling Policy. The operator features a three-tiered complaints process, which ends with independent ADR referral to eCOGRA (section 16), supporting fair dispute resolution.
  • Data Protection and GDPR Notes: The Privacy Policy is detailed and fully GDPR-compliant, outlining what data is processed, retention (generally up to five years), and rights to access/deletion. The split data controller arrangement between White Hat Gaming and Branders Limited is also transparently explained.
  • Bonus Abuse Definition: Bonus abuse and irregular play are expressly prohibited. Detailed, practical examples are set out in the General Terms (section 14) and Promotional Terms (section 2), giving players clear, actionable guidance on what is not allowed.
What I don't like:
  • Ambiguous Clauses and Policy Gaps: Some important terms allow for broad interpretation. Clauses on account closure "for any reason" (section 13.2) and actions tied to "suspicious activity" (section 7.3) or "repeated deposits and withdrawals without commensurate wagers" (section 7.2) are not precisely defined. This may cause unpredictability in how the operator enforces such action.
  • Limited Fund Protection: Section 7.1 states that player funds are held in a separate account but "not protected" in the event of insolvency. This meets only the Gambling Commission's lowest protection level. While highlighted, this is not well contextualised, leaving players at risk.
  • Regulatory Actions: In 2021, White Hat Gaming paid a £1.3m settlement to the Gambling Commission over AML and social responsibility failings at 21 Casino and related brands. Failings included inadequate source of funds checks and weak safer gambling interactions. However, I was pleased to see the company has committed to operational improvements since then.
My recommendations
  • Strengthen Fund Protection Disclosures: 21 Casino should provide clearer, more prominent explanations of the "not protected" funds status and what it means for players. It should ideally include practical examples or alternatives to reduce risk for customers.
  • Clarify Enforcement of Ambiguous Clauses: Providing concrete thresholds or case-specific examples for account closure and "suspicious activity" would offer customers more certainty and reduce the risk of inconsistent action.

IT Expert's Opinion

Our IT expert tests the technical side of the casino: connection security, page speed metrics, and the way assets are delivered. They then examine the server response, the caching policy and the quality of the mobile build.

What Works Well:
  • Fast Initial Server Response Time: Excellent server response time of 169.23 ms.
  • HTTPS Usage: The website uses HTTPS, ensuring secure communication.
  • CDN Presence: Utilisation of Amazon CloudFront CDN for efficient content delivery.
  • Mobile Optimisation: Responsive design and PWA (Progressive Web App) support indicate good mobile optimisation.
  • Security: HSTS is implemented, ensuring robust HTTPS practices.
  • Analytics:
    • Google Analytics for tracking.
    • Google Tag Manager for tag management.
    • Facebook Pixel and Skai for marketing and analytics.
  • JavaScript Frameworks: Use of modern libraries like React, AngularJS, Angular Material, and GSAP.
  • Hosting: Reliable and scalable hosting on Amazon Web Services (AWS).
What Needs Improvement:
  • Image Optimisation: Serving images in next-gen formats like WebP and AVIF is not fully utilised, with potential savings of 30 KB noted.
  • Unused JavaScript: The website includes unused JavaScript, leading to wasted resources. Example: Unused JS file from AWS WAF.
  • Minification: Some JavaScript and CSS files are not minified, affecting load times.
  • Caching: Inefficient use of caching strategies leads to suboptimal performance.
  • Structured Data Implementation: Improvement needed in structured data for better SEO practices.
  • Console Errors: Presence of errors in the console impacts site performance and user experience.
  • Viewport Meta: Ensure all pages have appropriate viewport meta tags for better mobile experience.
  • Legacy JavaScript Framework: The site uses AngularJS, which reached official end-of-life in December 2021. Running unsupported frameworks introduces security risk and performance overhead. A migration path to a modern alternative (React, Vue, or Angular 2+) should be planned.
Recommendations:
  • Image Optimisation:
    • Modern Image Formats: Utilise formats like WebP and AVIF to improve compression.
    • Lazy Loading: Implement lazy loading for offscreen images to improve initial load times.
    • Compression: Compress and resize images to optimal dimensions before serving them.
  • Reduction of Unused JavaScript:
    • Audit and Removal: Use tools like Webpack and PurifyCSS to identify and remove unused JavaScript files.
    • Deferring Non-Critical JavaScript: Defer the loading of non-essential scripts to enhance performance.
  • Minification:
    • CSS and JavaScript Minification: Use build tools such as Terser for JS and CSSNano for CSS to minify files.
    • Automated Build Processes: Implement automated pipelines to ensure all static assets are minified before deployment.
  • Caching Strategies:
    • Longer TTL Values: Implement longer TTL values for HTTP headers.
    • Client-Side Caching: Use service workers to manage caching on the client side for offline capabilities and faster reloads.
  • Structured Data:
    • Schema Implementation: Implement structured data adhering to schema.org to improve search engine visibility.
    • Validation: Use Google's Rich Results Test to validate structured data implementations.
  • Performance Enhancements:
    • Server Configuration Optimisation: Optimise server settings and configurations to reduce response times.
    • Reverse Proxy Implementation: Use a reverse proxy to efficiently distribute server load.
    • Redirect Handling: Ensure proper and minimal use of redirects to avoid performance degradation.
  • Console Errors:
    • Audit and Fix: Regularly audit and resolve errors in the browser console.
    • Error Tracking: Implement error tracking tools like Sentry to monitor and fix issues proactively.
  • Viewport Meta:
    • Meta Tags: Ensure proper viewport meta tags are included on all pages.
    • Mobile Usability: Use tools like Google's Mobile-Friendly Test to validate mobile usability.
Momchil Chonov

Lead Author's Summary and Final Rating

Momchil Chonov Gambling Expert & Content Team Lead
Very High Overall Expert Score 6.5/10

From my perspective and reflecting the consensus of my team, 21 Casino is a solid, secure choice for UK players who value variety and clear player protection. On range and reliability, it is one of the top 10 online casinos in this tier. The catalogue of over 2,200 slots (backed by more than 100 software providers including NetEnt, Big Time Gaming, and Play'n GO) is genuinely impressive, and the RNG table game section stands out against the competition with over 80 titles. The site structure is thoughtfully designed, with useful slot detail panels (volatility, win lines, provider) visible directly in the lobby. Mobile and web performance is strong, and betting limits are flexible enough to suit both cautious newcomers and high rollers.

There are gaps worth noting. White Hat Gaming paid a £1.3m UKGC settlement in 2021 over AML and social responsibility failings at 21 Casino, a significant regulatory episode, though the company has committed to improvements since. Player funds are held separately but classified as "not protected" under the Gambling Commission's lowest tier, which warrants more prominent disclosure. Terms around account closure and "suspicious activity" remain broadly worded. The live casino section is limited to around 35 titles, noticeably thin compared to the slot offering. There are no provider filters, no tournaments, and no jackpot counters in the lobby. Socially, the brand is almost entirely absent: Facebook and Instagram are inactive, and there is no presence on YouTube, X, or TikTok. The IT side also shows room for improvement, with console errors, suboptimal caching, and AngularJS still in use despite reaching end-of-life in 2021.

That said, the foundations here are genuinely strong. The dual UKGC and MGA licences, clear bonus abuse definitions, comprehensive GDPR policy, and eCOGRA dispute resolution all point to an operator that takes compliance seriously. For players who want a well-stocked, technically reliable casino with transparent terms and a huge slots catalogue, 21 Casino delivers. Add live dealer depth, slot tournaments, and a more active social presence, and this is a site with the bones to rank meaningfully higher.

Momchil Chonov - Gambling Expert & Content Lead
Gambling Expert & Content Lead
Momchil Chonov

Momchil Chonov brings over 17 years of experience in land-based casinos and online gambling content, with particular expertise in slots, offering a deep and well-rounded understanding of the gaming industry. His extensive background allows him to produce accurate, engaging, and insightful content for players of all skill levels. Passionate about responsible gambling and player education, Momchil is committed to providing trustworthy advice, in-depth reviews, and clear, easy-to-follow guides. His goal is to ensure every visitor enjoys online gaming in a safe, informed, and responsible way.

Welcome Bonus

21 Casino in the App Store
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Max Bonus Amount 70 Bonus Spins
Bonus Code None
Significant Terms 18+. New players only. Welcome offer: 70 Book of Dead Bonus Spins with min. £15 first deposit. Bonus spins must be used within 10 days. Winnings from bonus spins are added as bonus funds, requiring 10x wagering to convert to cash funds; only bonus funds count towards wagering contribution. Affordability checks apply. Full T&Cs apply. Please gamble responsibly. BeGambleAware.org
Wagering 10x
Validity 30 days
Max Bet with Bonus Funds £5
Maximum Cashout Not published
How to Claim Register, verify your profile, opt in to the promotion, and deposit at least £15
Games Allowed Free Spins on Book of Dead

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21 Slots

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Slot RTP Software Jackpot Max win Play Review
96.00% No x26,000 Play Slot
96.00% No x5000 Play Slot
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Payments

Payouts at 21 Casino come in two speeds, within a day through Neteller, PayPal or Revolut and one to three days on a card, with a bank transfer stretching to four. Nine methods make the list, though Neosurf, PaysafeCard and instant bank transfer take deposits only. No method charges a fee, and while £10 is enough to play, a withdrawal will not release until it reaches £20.

Payment Min Deposit Min Withdrawal Withdrawal Timeframe
£10 £20 1 - 3 Days
£10 £20 Within 1 Day
£10 No Data No Data
£10 No Data No Data
£10 £20 1 - 3 Days
£10 No Data No Data
£10 £20 Within 1 Day
£10 £20 Within 1 Day
No Data £20 1 – 4 Days

Popularity

Here is a snapshot of 21 Casino's estimated traffic according to Ahrefs.com and Semrush.

Ahrefs Organic Traffic 3026
Semrush Organic Traffic 7886
21 Casino Site Ahrefs Traffic 21 Casino Site Semrush Traffic

Responsible Gambling

As a UKGC-licensed platform, 21 Casino is committed to the highest standards of responsible gambling and player protection.

Self-Exclusion Yes
Deposit Limit Settings Yes
Spending Limit Settings Yes
Time-Out and Gaming Time Reminders Yes
Self-Assessment Tools Yes

21 Casino Company

Company Name White Hat Gaming Limited
Founded 2012
Founder Max Wright
Headquarters 85 St John Street, Valletta, VLT1165, Malta
E-Mail Contact Form
CEO Phil Gelvan
CFO Justin Psaila
Other key personnel Ed Bullock - COO; Steve Sowerby - CTO; Mary Ryan - CPO; Paul Arnold - CLCO
Parent Organisation White Hat Gaming Limited
Employees 500+
Markets CA, FI, IN, IE, NZ, NO, GB, AQ, AR, AM, BD, IO, CV, CL, KM, CY, DM, DO, EG, SV, FO, FJ, GM, GE, GL, GD, IM, JP, KZ
Revenue $83M

Conclusion

Momchil Chonov - Gambling Expert & Content Lead

21 Casino is a licensed, user-oriented site with a large game catalogue, strong security, and easy navigation. Overall, the operator succeeds on the core essentials and offers a high-quality site for a broad range of UK players. With a push on communication, live casino depth, and some tech enhancements, I believe it could quickly climb higher up the rankings. 

Momchil Chonov
Gambling Expert & Content Lead
7.2/10 Register Here

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