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REVIEW: 666 Casino UK

By Momchil Chonov Gambling Expert & Content Lead
Our Contributors
Last Update: August 2025
Major Updates
  • Updated Jul 17, 2025: Research process initiated.
  • Updated Jul 24, 2025: Experts and contributors began hands-on testing.
  • Updated Aug 01, 2025: Primary reviewer started individual assessment.
  • Updated Aug 07, 2025: Review privately published for internal review.
  • Updated Aug 13, 2025: Review published publicly.
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 666 Compares:

666 Casino has a Casino.net Overall score higher than 51% of all reviewed UK casinos.

Overall Score Distribution:
 6.9/10 or 69% 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 100% up to £66 + 66 Extra Spins
Link Check Offer Here
Other Casinos 666 Casino Bonus
Full T&Cs Apply. 18+. New players only. Min. deposit £20. Max. bonus 100% on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max. wins from spins £100. Spins expire after 24 hours. Full T&Cs app
Licence # 39483 Issued on 2014-11-01
All Ratings
  • 5.3/10
    Casino.net Algo Based on our automatic algorithm
    Casino.net Score
    5.3
    The Casino.net Overall Score is calculated automatically and based on hard facts about the operator, as well as on expert and user opinions.
    Overall Score Distribution:
    • 30% Casino.net Algo
    • 30% Expert Ratings
    • 30% User Ratings
    • 10% Web Ratings
  • 8.7/10
    User Rank Based on 2 votes
    User Rank
    8.7
    Our user rank is an aggregate rating based on all user ratings. When there are still no user ratings, the score distribution becomes as follows.
    Overall Score Distribution:
    • 40% Casino.net Algo
    • 40% Expert Ratings
    • 20% Web Ratings
  • 6.1/10
    Web Rank Based on opinions across the web.
    Web Rank
    6.1
    Our web rank is an aggregate rating based on the information from the Play Store, Apple App Store, Trustpilot, ahrefs.com Domain rating, and semrush.com authority score.
    Overall Score Distribution:
    • 30% Casino.net Algo
    • 30% Expert Ratings
    • 30% User Ratings
    • 10% Web Ratings
  • 7.0/10
    Expert Score Based on the tests of 6 experts.
    Expert Score
    7.0
    The expert score is an aggregate of all team members and contributors who worked on compiling this comprehensive review. Check out all our expert opinions and insights.
    Overall Score Distribution:
    • 30% Casino.net Algo
    • 30% Expert Ratings
    • 30% User Ratings
    • 10% Web Ratings
Slots: 2500+
RTP: 96.00%
Payout: 1 - 6 days
Software:
Payments:
UK Players Accepted
Rate 666 Casino
Drag & Drop
666 Casino in the App Store

What We Don’t Like

  • Limited RNG Table Variation
  • Vague Account Suspension Terms
  • Inactive, Unverified Social Media

Our Recommendations

  • Expand RNG Game Offerings
  • Clarify Account Action Triggers
  • Enhance Social Media Presence
Momchil Chonov - Gambling Expert & Content Lead email
Gambling Expert & Content Lead
Momchil Chonov

Momchil Chonov brings over 17 years of experience in land-based casinos and online gambling content, 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.

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
Page Content

666 Casino Features and Comparison

Ranked 20th out of 40 casinos in the United Kingdom.

666 Casino in the App Store
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Choose Casino
Website 666casino.com
Online Since 2018
Casino Type Instant Play, Mobile, App
Network AspireGlobal
Licenses 39483, UK Gambling Commission
Welcome Bonus 100% up to £66 + 66 Extra Spins
Sign Up Time Instant
Wagering Slot - 100%, Roulette - 0%, Blackjack - 0%, Live Games - 0%
Min Deposit £10
Max Deposit No Limit
Max Withdrawal Monthly No Limit
Max Withdrawal Daily No Limit
Number of Games 2750+
Number of Slots 2500+
RTP 96.00%
Cashout Limits Not Listed
Payout Speed 1 - 6 days
Software Providers
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
Payment Methods
, , , , , , , ,
PayPal Accepted Yes
Compatible Devices Android, iOS, Windows, and macOS
Restricted Countries KH, DK, DJ, FR, GA, GM, DE, GH, GI, GP, GU, GN, GY, HU, IR, IQ, IL, IT, JM, JO, KE, LA, LV, LB, LR, LY, LT, MY, ML, MT, MQ, MR, MU, MA, MZ, MM, NL, NI, NE, NG, KP, MP, PK, PS, PY, PH, PL, PT, PR, RO, RU, RW, SN, RS, SL, SG, SK, SO, ZA, ES, LK, SD, SE, CH, SY, TZ, TH, TG, TT, TN, TR, UG, UA, US, VU, VE, YE, ZM, ZW, AF, AL, DZ, AS, AR, AU
Awards SBC Awards 2021 - White Label Supplier of the Year, EGR B2B Awards 2023 - White Label Partner, EGR Nordics Awards 2023 - Casino Platform Supplier
Customer support FAQ, Email, Contact Form
Company AG Communications Limited
Sister Sites Mr.Mega, Betiton, Trada Casino, Slotanza, Regent Play Casino, Luckster, Dream Jackpot, Slotzo Casino, Jaak Casino, Playluck Casino, Luckland, King Casino, Slots n'Play, PlayFrank, Magicred, Heyspin, Mr.Play, Spin Rio, SpinShake, Queenplay, Vegasland, BetGrouse
Affiliate program BigWin Affiliates
Manual Flushing No
KYC Verification Yes

666 Casino Media

  • 666 Casino Home Page on Mobile

    666 Casino Home Page on Mobile

  • 666 Casino Slots on Mobile

    666 Casino Slots on Mobile

  • 666 Casino Table Games on Mobile

    666 Casino Table Games on Mobile

  • 666 Casino Live Casino on Mobile

    666 Casino Live Casino on Mobile

  • 666 Casino Home Page on Desktop

    666 Casino Home Page on Desktop

  • 666 Casino Slots on Desktop

    666 Casino Slots on Desktop

  • 666 Casino Table Games on Desktop

    666 Casino Table Games on Desktop

  • 666 Casino Live Casino on Desktop

    666 Casino Live Casino on Desktop

Ratings Breakdown

666 Casino scored 6.9 out of 10. 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 666 Casino based on all criteria:

Our Criteria Casino.net Percentage Distribution How 666 Casino Scored
Geo Licence
15 %
Score meaning
15 %
  • 15% The casino has a licence for this country.
  • 0% The casino doesn’t have a licence for this country.
 15 % 666 Casino has a licence for this country.
Responsible Gambling Systems
5 %
Score meaning
2 %
  • 5% All features available.
  • 0% No features available.
 2 % 666 Casino offers deposit limits, self-exclusion.
Safety Technology and Privacy Protection
5 %
Score meaning
5 %
  • 1% Casino uses HTTPS.
  • 1% Cookie warning.
  • 1% Customizable cookie settings.
  • 1% Anti-malware and spyware certificate.
  • 1% Password protection and checks against data breach.
 5 % 666 Casino uses HTTPS and has cookie warning, customizable cookie settings, anti-malware and spyware certificate, password protection and checks against data breach.
Safety & Responsible Gambling 2.5/10 or 25 % 2.1/10 or 21 %
Criteria Casino.net Percentage Distribution How 666 Casino Scored
Number of Games
5 %
Score meaning
3 %
  • 5% Has more games than 80% of all reviewed casinos.
  • 4% Has more games than 70% of all reviewed casinos.
  • 3% Has more games than 60% of all reviewed casinos.
  • 2% Has more games than 50% of all reviewed casinos.
  • 1% Has less games than 50% of all reviewed casinos.
  • 0% Has less than one hundred games.
 3 % 666 Casino has more games than 60% of all reviewed casinos.
Number of Slots
5 %
Score meaning
2 %
  • 5% Has more slots than 80% of all reviewed casinos.
  • 4% Has more slots than 70% of all reviewed casinos.
  • 3% Has more slots than 60% of all reviewed casinos.
  • 2% Has more slots than 50% of all reviewed casinos.
  • 1% Has more than one hundred slots.
  • 0% Has less than one hundred slots.
 2 % 666 Casino has more slots than 50% of all reviewed casinos.
Number of Live Games
3 %
Score meaning
3 %
  • 3% Offers all the most popular live casino games – roulette, blackjack, baccarat, Casino Hold’em, Three-Card Poker, Hi-Lo (or Sic Bo).
  • 2% Misses one or more of the most popular live games but has the three most important ones – roulette, blackjack and baccarat.
  • 1% Doesn’t offer either live roulette, blackjack or baccarat.
  • 0% Doesn’t offer live games.
 3 % 666 Casino offers live roulette, blackjack, baccarat, Casino Hold'em, Three-Card Poker, and Hi-Lo.
Number of Software Providers
2 %
Score meaning
1 %
  • 2% Has games by more software providers than 50% of all reviewed casinos.
  • 1% Has games by less software providers than 50% of all reviewed casinos.
  • 0% Has only one software provider.
 1 % 666 Casino has games by less software providers than 50% of all reviewed casinos.
Games 1.5/10 or 15 % 0.9/10 or 9 %
Criteria Casino.net Percentage Distribution How 666 Casino Scored
Overall RTP
8 %
Score meaning
0 %
  • 8% Has better RTP than 90% of all reviewed casinos.
  • 7% Has better RTP than 80% of all reviewed casinos.
  • 6% Has better RTP than 70% of all reviewed casinos.
  • 5% Has better RTP than 60% of all reviewed casinos.
  • 4% Has better RTP than 50% of all reviewed casinos.
  • 3% Has better RTP than 40% of all reviewed casinos.
  • 2% Has better RTP than 30% of all reviewed casinos.
  • 1% Has better RTP than 20% of all reviewed casinos.
  • 0% Has RTP lower than 80% of all reviewed casinos.
 0 % 666 Casino has RTP lower than 80% of all reviewed casinos. (RTP: 96.00%)
Slots RTP
7 %
Score meaning
7 %
  • 7% Has better slot RTP than 90% of all reviewed casinos.
  • 6% Has better slot RTP than 80% of all reviewed casinos.
  • 5% Has better slot RTP than 70% of all reviewed casinos.
  • 4% Has better slot RTP than 60% of all reviewed casinos.
  • 3% Has better slot RTP than 50% of all reviewed casinos.
  • 2% Has better slot RTP than 40% of all reviewed casinos.
  • 1% Has better slot RTP than 30% of all reviewed casinos.
  • 0% Has slot RTP lower than 70% of all reviewed casinos.
 7 % 666 Casino has better slot RTP than 90% of all reviewed casinos. (Slots RTP: 96.30%)
RTP 1.5/10 or 15 % 0.7/10 or 7 %
Criteria Casino.net Percentage Distribution How 666 Casino Scored
Welcome Bonus Max Amount
7 %
Score meaning
1 %
  • 7% Offers a higher bonus amount than 90% of all reviewed casinos.
  • 6% Offers a higher bonus amount than 80% of all reviewed casinos.
  • 5% Offers a higher bonus amount than 70% of all reviewed casinos.
  • 4% Offers a higher bonus amount than 60% of all reviewed casinos.
  • 3% Offers a higher bonus amount than 50% of all reviewed casinos.
  • 2% Offers a higher bonus amount than 40% of all reviewed casinos.
  • 1% Offers a lower bonus amount than most reviewed casinos.
  • 0% Doesn’t offer a welcome bonus.
 1 % 666 Casino offers a lower bonus amount than most reviewed casinos.
Wagering Requirement
6 %
Score meaning
0 %
  • 6% Offers better wagering contributions than 80% of all reviewed casinos.
  • 5% Offers better wagering contributions than 70% of all reviewed casinos.
  • 4% Offers better wagering contributions than 60% of all reviewed casinos.
  • 3% Offers better wagering contributions than 50% of all reviewed casinos.
  • 2% Offers better wagering contributions than 40% of all reviewed casinos.
  • 1% Offers better wagering contributions than 30% of all reviewed casinos.
  • 0% Offers worse wagering contributions than 70% of all reviewed casinos.
 0 % 666 Casino offers worse wagering contributions than 70% of all reviewed casinos. (Average contribution: 25.00%)
Bonus Minimum Deposit
2 %
Score meaning
0 %
  • 2% Accepts a lower bonus minimum deposit than £10.
  • 1% Accepts a £10 bonus minimum deposit.
  • 0% Accepts a bonus minimum deposit higher than £10.
 0 % 666 Casino accepts a bonus minimum deposit higher than £10. (Minimum deposit: £20.00)
Bonus 1.5/10 or 15 % 0.1/10 or 1 %
Criteria Casino.net Percentage Distribution How 666 Casino Scored
Number of Payment Methods
2 %
Score meaning
1 %
  • 2% Offers more than 10 different payment methods.
  • 1% Offers fewer than 10 payment methods.
  • 0% Offers only one payment option.
 1 % 666 Casino offers fewer than 10 payment methods (Payment methods: 8)
Fastest Withdrawal Time
3 %
Score meaning
3 %
  • 3% Offers instant withdrawals.
  • 2% Offers same-day withdrawals.
  • 0% Fastest withdrawals take more than one day.
 3 % 666 Casino offers instant withdrawals.
Minimum Deposit
1 %
Score meaning
1 %
  • 1% Accepts a minimum deposit of £10 or lower.
  • 0% Accepts a minimum deposit higher than £10.
 1 % 666 Casino accepts a minimum deposit of £10 or lower. (Minimum deposit: £10.00)
Maximum Deposit
1 %
Score meaning
0 %
  • 1% Accepts a higher maximum deposit amount than 50% of all reviewed casinos.
  • 0% Accepts a lower maximum deposit amount than 50% of all reviewed casinos.
 0 % 666 Casino does not specify a maximum deposit.
Cashout Limits
1 %
Score meaning
0 %
  • 1% There are no cashout limits.
  • 0% There are some cashout limits.
 0 % 666 Casino has some cashout limits. (Not Listed)
Currencies
1 %
Score meaning
1 %
  • 1% Accepts local currency.
  • 0% Doesn’t accept local currency.
 1 % 666 Casino accepts £.
PayPal Accepted
1 %
Score meaning
1 %
  • 1% Accepts PayPal.
  • 0% Doesn’t accept PayPal.
 1 % 666 Casino accepts PayPal.
Payment 1.0/10 or 10 % 0.7/10 or 7 %
Criteria Casino.net Percentage Distribution How 666 Casino Scored
Customer Support Availability
3 %
Score meaning
0 %
  • 3% Customer support available 24/7.
  • 2% Customer support available every day but not at all hours.
  • 0% Customer support not available every day.
 0 % 666 Casino does not offer customer support every day.
Customer Support Methods
3 %
Score meaning
0 %
  • 3% Customer service offers live chat, phone, and email support.
  • 2% Customer service doesn’t offer either live chat or phone support.
  • 0% Customer service offers only email support.
 0 % 666 Casino offers only email support.
Compatible Devices
2 %
Score meaning
2 %
  • 2% Software works seamlessly across all devices, old and new.
  • 1% Software works mostly on new devices.
  • 0% Software doesn’t work on all modern devices.
 2 % 666 Casino works seamlessly across all devices, old and new.
Languages
2 %
Score meaning
0 %
  • 2% Supports more than two languages.
  • 1% Supports two languages.
  • 0% Offers only one language.
 0 % 666 Casino does not specify supported languages.
User Experience 1.0/10 or 10 % 0.2/10 or 2 %
Criteria Casino.net Percentage Distribution How 666 Casino Scored
Casino Awards
4 %
Score meaning
4 %
  • 4% Has two or more casino awards.
  • 2% Has only one casino award.
  • 0% Doesn’t have casino awards.
 4 % 666 Casino has two or more casino awards. (SBC Awards 2021 - White Label Supplier of the Year, EGR B2B Awards 2023 - White Label Partner, EGR Nordics Awards 2023 - Casino Platform Supplier)
Other Products
4 %
Score meaning
0 %
  • 4% Offers sports betting, poker, bingo, and lotto, except for casino.
  • 3% Doesn’t offer all the other products – poker, bingo, sports betting and lotto.
  • 2% Offers only one other gambling product.
  • 0% Offers only a casino.
 0 % 666 Casino offers only a casino.
Public Company
2 %
Score meaning
2 %
  • 2% Public company.
  • 0% Not a public company.
 2 % 666 Casino is a public company.
Reputation and Awards 1.0/10 or 10 % 0.6/10 or 6 %
Casino.net Percentage Distribution 10.0/10 or 100 %
Casino.net Algo Score: 5.3/10 or 53 %

666 Casino has a higher Casino.net Algo score than 13% of all reviewed casinos.

100% 5.3 points out of 10.0
Safety 25%
Games 15%
RTP 15%
Bonus 15%
Payment 10%
User Experience 10%
Reputation and Awards 10%

User Ratings

There are 2 player reviews. Be the next one to give your opinion.

What do you think
Rate 666 Casino
8.78.7 out 10 (based on 2 votes)
  • 9-10 1 (50%)
  • 7-8 1 (50%)
  • 5-6 0 (0%)
  • 3-4 0 (0%)
  • 1-2 0 (0%)

Web Ratings

From app stores to review sites, this snapshot shows how 666 Casino is perceived by its users online.

Website Score Translating into score out of 10
App Store 3/5 6/10
Play Store Not listed Not listed
Ahrefs Domain Rating 58/100 5.8/10
Lighthouse Metrics 88.75/100 8.9/10
Trustpilot 1.9/5 3.8/10
Reviews.io Not listed Not listed
Average Web Score: 6.1/10

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. Her focus and specialty are on slots. She has written numerous reviews for different games, always providing quality content.

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. Over the years, he has been involved in projects that require a thorough analysis of various gaming platforms, which has helped him gain strong expertise. Thanks to his experience in writing reviews, Nikola has built a precise comparison model to overview and fairly assess online casinos and their services.

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. She brings together a master’s degree in marketing and brand management with extensive experience in social media strategy and the creation of engaging gambling-related content. Above all, Manuela is deeply committed to player safety, consistently advocating for transparency and responsible gambling practices.

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 specializes in advising key stakeholders—including operators, providers, and affiliates—on compliance, licensing, and regulatory strategy. He has drafted hundreds of Terms & Conditions, Privacy Policies, and other key legal documents tailored to the online casino space. As a speaker at international gambling conferences, he stays ahead of industry trends and evolving legal standards. In his reviews, he takes a critical look at each casino—breaking down the fine print, highlighting potential red flags, and offering players clear, trustworthy insights grounded in real legal expertise.

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. With a strong background in cybersecurity, risk analysis, and infrastructure optimization, he ensures each casino meets high standards for technical reliability, speed, and data protection.

Slots Expert's Opinion

Our slot expert reviews the slot selection, software providers, and how easy it is to browse games. They also look at branded titles, jackpots, and features like tournaments and missions.

What I like:
  • Broad Game Selection with Regular Releases: 666 Casino boasts well over 2,300 slots, with dozens of new titles released regularly in a dedicated “New” section.
  • Good Catalogue Navigation and Filters: You can filter by provider, theme (Megaways, Jackpots, Drops & Wins), and search game names, making it user friendly.
  • Top Software Providers: The platform offers games from well-known providers such as NetEnt, Play’n GO, Pragmatic Play, Microgaming, Yggdrasil, Blueprint, Red Tiger, Wazdan, and more. This guarantees smooth gameplay with high RTP games.
  • Drops & Wins and Promotional Integration: 666 Casino supports branded features like Pragmatic Play’s Drops & Wins and seasonal promotions, which add gamified excitement to slots.
What I don't like:
  • A Few Dated Titles: Heavy reliance on older classics like Book of Dead, Fire Joker, and Eye of Horus, with fewer truly new-mechanic titles.
  • Limited Gamification: No built-in slot duels, missions, or site-wide tournaments are integrated into slots beyond the occasional Drops & Wins promotions.
My recommendations:
  • Add Deeper Filters: Allow players to filter by feature/mechanics (cluster pays, cascading reels, volatility tiers) to help them quickly find games that suit their preferred style.
  • Introduce Tournaments and Missions: Include more gamification layers, such as tournaments, daily missions, duels, or battle-of-slots features, to create more excitement and community engagement.

Live and Table Games Expert's Opinion

Our live and table games expert reviews the variety of table games, live dealer quality, and software providers. They also check table limits, usability, and availability, plus extras like bet behind, tournaments, and gamified features like badges and levels.

What I like:
  • Popular Live Game Shows: 666casino holds its own with a strong line-up of live game shows, including favourites such as Monopoly Live, Funky Time Live, and Marble Race. Games like Super Color Game deliver multipliers of up to 500x or even 1000x, offering genuinely engaging and high-energy gameplay.
  • More Untraditional Options: Along with classic roulette and blackjack from leading providers like Evolution, 666casino offers a variety of unique live games. Standouts include 100x Football Roulette, Buffalo Blitz Live, Gonzo’s Treasure Map, and Super Sic Bo.
  • Real Dealer Game Diversity: 666casino is a top pick for live gaming enthusiasts, as its lobby features a broad selection of tables across almost every game type. This breadth of choice sets it apart from many competitors, as few platforms manage to cater to such a wide range of player preferences.
What I don't like:
  • RNG Game Options: Although 666casino focuses on live dealer games, its selection of RNG roulette and blackjack titles is fairly limited. There are just a handful of options available, such as 20p Roulette, Speed, and Classic Blackjack.
My recommendations:
  • Separate RNG Game Category: The limited RNG options would be better served by being organised into a separate category. While there are currently tabs for Roulette and Blackjack, these include both live dealer and RNG games, which can be confusing for players. Even though live casino games are preferred by many, 666casino should consider expanding its selection of RNG games, as there remains a strong demand from other players.

Social Media Expert's Opinion

Our social media expert checks which platforms the company uses, how often they post, and how well their content performs. They also look at follower count, brand tone, growth, and whether any channels are inactive or missing.

What I like:
  • Presence Across Multiple Platforms: 666Casino seems to be present across multiple social media platforms, including Facebook, X, Instagram, and YouTube. However, none of the available accounts are officially verified.
  • YouTube Channel with Substantial Viewership: What appears to be the 666Casino YouTube channel is very small, with only 23 subscribers and 5 videos as of July 2025. However, the videos, which are for alternative casino brands, have hundreds of thousands of views.
  • Potential for Growth: The brand's social media presence is minimal, so there's significant room for growth. By improving its activity and content strategy, 666Casino could build a more engaged and loyal audience.
What I don't like:
  • No Verification Badges: The lack of verification badges and activity make the available 666Casino social media pages appear untrustworthy and spammy, which could hinder the reputation of the platform.
  • Inactive and Outdated Accounts: All 666Casino social media accounts have been inactive for quite some time, which is not ideal. I would go as far as suggesting that if this continues, it's better to delete them rather than keep them in their current state.
My recommendations:
  • Obtain Verification Badges: It's essential that 666Casino obtains verification badges to clearly define its official social media pages. This will help increase the credibility of the online gambling brand and create trust among players.
  • Regular Content on Existing Pages: 666Casino should start posting regular, fresh content to rebuild trust among its followers and expand its reach across platforms. This will engage already existing players and could also attract new ones.

Legal Expert's Opinion

Our legal expert checks if the casino is licensed and since when. They review the terms to see if bonus abuse is clearly defined and flag vague or misleading clauses. The review also covers player protection, responsible gambling tools, ADR, GDPR compliance, and regulatory fines.

What I like:
  • Licensing and Regulation: AG Communications Limited operates 666 Casino. It holds active licences from the UK Gambling Commission (Licence No. 39483, issued 1 November 2014) and the Malta Gaming Authority (Licence No. MGA/CRP/148/2007).
  • Logical Terms Structure: The General Terms and Conditions are logically organised, with a table of contents including brief descriptions of each section to ease navigation.
  • Bonus Abuse Definition: Bonus abuse is addressed in detail across the General Terms (sections 5.2.22 and 7.1) and the Bonus Policy. Practical examples, such as repeated deposit/withdrawal cycling, delayed winnings, and misuse of free spins, are spelt out. This gives players concrete guidance and reduces ambiguity around forfeiture risks.
  • Responsible Gambling and Complaint Handling: The Responsible Gambling Policy contains advice and guidance for safer gaming. It includes self-assessment tests, details of responsible gambling tools, and contact information for specialist organisations. Section 11 of the General T&C outlines the complaints procedure, with alternative dispute resolution available through IBAS.
  • Privacy and GDPR Compliance: The Privacy Policy is comprehensive and GDPR-aligned, detailing what personal data is collected, the lawful bases for processing, storage locations, retention periods, and user rights.
What I don't like:
  • Regulatory Actions: AG Communications Limited has faced regulatory action from the UK Gambling Commission in recent years for AML and social responsibility failures. It was sanctioned in November 2022, with conditions attached to the licence, an official warning, and a £237,600 fine. In February 2025, a settlement was reached, with the company paying £1.4m in lieu of a financial penalty.
  • Ambiguous and Broad Clauses: The operator has considerable discretion to suspend or close accounts tied to "reasonable grounds to believe" players have participated in prohibited or fraudulent activities (sections 7.1–7.2).
My recommendations:
  • Clarify Enforcement and Prohibited Activity Triggers: 666 Casino should work on the transparency of key enforcement triggers. Specifically, real-life examples or thresholds clarifying what constitutes "reasonable suspicion" or "Prohibited Practices" would help players avoid falling foul of ambiguous rules.
  • Increase Communication Regarding Compliance Improvements: In light of recent regulatory actions, the operator should consider periodically publishing statistics or updates on improvements to their anti-money laundering and player protection processes. This proactive approach would demonstrate an ongoing commitment to compliance and help rebuild user trust.

IT Expert's Opinion

Our IT expert evaluates the site’s technical performance, covering security, HTTPS implementation, and core web metrics. They also check mobile optimization and the use of content delivery networks. Further review includes caching practices, hosting setup, and frontend diagnostics.

What I like:
  • Strong Core Web Vitals:
    • FCP (First Contentful Paint): 1.2 s — solid.
    • LCP (Largest Contentful Paint): 1.8 s — very good, below the 2.5 s threshold.
    • CLS (Cumulative Layout Shift): 0.011 — excellent; indicates stable layout.
    • Speed Index: 3.3 s — acceptable for casino-grade design richness.
  • HTTPS and HSTS: Fully served over HTTPS. Implements HSTS, enhancing transport layer security.
  • Modern Frontend Stack: Uses Vue.js and Nuxt.js for efficient rendering and routing. Leverages Nuxt.js both as a web framework and static site generator — good for SEO and performance.
  • CDN and HTTP/3 Support: Served via Cloudflare CDN. Supports HTTP/3, which improves load performance and reduces latency over poor connections.
  • Mobile Optimization: Viewport tag correctly implemented, enabling responsive design.
  • Analytics and Tagging: Multiple trackers: Google Analytics, Microsoft Clarity. Google Tag Manager allows flexible tag injection without developer involvement.
  • User Interaction Tools: Live chat via Freshchat. Advertising integrated via Microsoft Advertising. Customer data platform: Exponea.
What I don't like:
  • TTI (Time to Interactive): 8.1 s — significantly delayed; users must wait long before interacting with elements. Suggests heavy script loading or render-blocking resources.
  • TBT (Total Blocking Time): 930 ms — above the recommended max of 300 ms. Indicates main thread is blocked too long during page load.
  • Speed Index (Visual Completion): 3.3 s — borderline. Could be optimized for snappier perceived loading.
  • JavaScript-Heavy Stack: Vue.js/Nuxt.js apps can introduce bundle bloat if not tree-shaken, minified, or chunked properly.
My recommendations:
  • Improve Interactivity Time (TTI & TBT):
    • Defer non-critical scripts.
    • Use async/defer for third-party analytics and chat scripts.
    • Split large JavaScript bundles using Nuxt's route-based code-splitting.
  • Audit JavaScript Payloads:
    • Run bundle analysis tools (e.g., Webpack Bundle Analyzer) to identify and reduce large or unused modules.
    • Consider lazy-loading less important components.
  • Optimize Initial Paint:
    • Preload critical resources such as fonts or hero images.
    • Use Nuxt’s built-in image optimization module with modern formats like WebP/AVIF.
  • Leverage Nuxt Static Site Generation (SSG) More Fully: Confirm all routes that don’t require dynamic SSR are statically generated to reduce server load and TTI.
  • Structured Data & SEO Enhancements:
    • Validate presence of schema.org data using Google’s Rich Results Test.
    • Mark up casino games, reviews, and licensing information in JSON-LD format.
  • Caching Strategy:
    • Review caching headers via Cloudflare.
    • Set long-lived cache-control for static assets.
Momchil Chonov

Lead Author's Summary and Final Rating

Momchil ChonovGambling Expert & Content Team Lead
Very High Overal Expert Score 7.0/10 or 70 %

666 Casino covers the essentials well, standing out for its strong licensing, clear bonus abuse rules, and notably wide range of slots and live dealer options. I think the site’s catalogue navigation and game filtering are head and shoulders above many rivals, and regular releases from leading developers keep things both fresh and reliable. Fans of live casino games will appreciate the unique table and game show options that aren’t found everywhere.

That said, some policy language, especially around account suspension and “prohibited practices”, could be far clearer. The RNG table and classic game variety is not as extensive as what’s offered by the leading UK casinos, which could leave some players wanting more. Additionally, the brand’s social media accounts are neither verified nor regularly updated. This lack of consistent activity and official status may impact the level of trust some players feel towards the platform. With some focused updates on these fronts, 666 Casino could significantly sharpen its appeal for both new and regular players. 

Welcome Bonus

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Max Bonus Amount £66
Bonus Code No
Significant Terms Full T&Cs Apply. 18+. New players only. Min. deposit £20. Max. bonus 100% on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max. wins from spins £100. Spins expire after 24 hours. Full T&Cs app
Wagering 35x
Validity 21 Days
Max Bet with Bonus Funds 4.00
Maximum Cashout Not Listed
How to Claim Create an account, make first deposit.
Games Allowed 66 Spins on Big Bass Bonanza on Second Deposit

Welcome Bonus Comparison

Operator Bonus
Bonus Coming Soon Learn More Lowest
£66
£6000 Learn More Highest
Full T&Cs Apply. 18+. New players only. Min. deposit £20. Max. bonus 100% on 1st deposit. 66 spins on Big Bass Bonanza on 2nd deposit. 35x wagering applies, within 21 days. Max. wins from spins £100. Spins expire after 24 hours. Full T&Cs app

666 Slots

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Slot RTP Software Jackpot Max win Play Review
99.07% No x1000 Play Slot
99.00% No x1,000 Play Slot
99.00% Yes Progressive Jackpot Play Slot
99.00% No No data Play Slot
98.95% No x2500 Play Slot
98.90% Yes x30 Play Slot
98.72% No x1000 Play Slot
98.06% Yes x20,000 Play Slot
98.00% No 1014x Play Slot
98.00% No x7500 Play Slot
98,07% No 250,000 Play Slot
98.00% No 60000 Play Slot
97.87% No x500 Play Slot
97.80% Yes x13,000 Play Slot
97.80% No No data Play Slot
97.76% No x194,400 Play Slot
97.71% Yes x2000 Play Slot
97.69% No x1,250,000 Play Slot
97.62% No x5000 Play Slot
97.50% No x225,000 Play Slot
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Showing 1 to 20 of 2705 slots

Software Providers

Software Provider Type (RNG/Live)
RNG and Live Dealer Games
RNG Games
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RNG Games
RNG Games
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Live Dealer Games
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RNG and Live Dealer Games
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RNG and Live Dealer Games
RNG and Live Dealer Games
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RNG and Live Dealer Games
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RNG and Live Dealer Games
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The 666 Casino Mobile Apps

666 Casino in the App Store
666 Casino iOS QR Code
Scan to Download
666 Casino on App Store

Payments

Payment Min Deposit Max Deposit Min Withdrawal Max Withdrawal Fees & Notes
£5 £5,000+ £5 Varies Typically free; some sites treat as cash advance with fees
£5 £5,000+ £5 Platform-defined Usually no fees, fast execution
£5 Varies; unlimited once verified £0.50 (to bank) Unlimited once verified No fee for standard domestic transfers; 1% fee for instant transfers
£1 £1000 Not available Not available Prepaid voucher—deposit only; no withdrawals
£5–£10 Site dependent £10–£20 Platform-defined Free deposits; card ≈2.9%; bank/wire ≈£2.90; crypto 2%
£5–£10 £5,000–£25,000+ £5 or £10 £5,000–£25,000+ No fees; instant deposits, 1–2 days withdrawals
£5 £5,000+ £5 Platform-defined Typically free; some sites treat as cash advance with fees
£10 £100,000+ £10 £100,000+ Typically free; 1–5 days processing

Popularity

We’ve compiled 666 Casino’s estimated traffic using insights from Ahrefs.com and Semrush.

Ahrefs Organic Traffic 42,123
Ahrefs Paid Traffic 439
Semrush Organic Traffic 31,750
Semrush Paid Traffic 593

Responsible Gambling

As a UKGC-licensed platform, 666 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

666 Casino Company

Company Name AG Communications Limited
Founded 2005
Founder Pini Rake
Headquarters St George's Business Centre, Level 5, St George's Road, St Julians STJ 3200 Malta
Phone +35622484900
E-Mail contactus@aspireglobal.com
CEO Tsachi Maimon
CFO Not Listed
Other key personnel Dima Reiderman COO, Ohad Narkis CTO, Jovin Genovese - VP Sales and Marketing
Subsidiaries AG Communications Limited, Pariplay Ltd., BtoBet
Owned Brands Wizard Slots 🞄 Cozino 🞄 Slotzo 🞄 King Casino 🞄 Clover Casino 🞄 Dove Casino 🞄 MrLuck Casino and more
Parent Organisation Aspire Global Limited
Employees 2100+
Markets GB
Shares No
Stock Exchange Not Listed
Stock Price No
Number of POS Not Listed
Number of Clients Over 300,000
Revenue 213.3 Million Euro

Conclusion

Momchil Chonov - Gambling Expert & Content Lead Email

Overall, 666 Casino is a trustworthy, feature-rich choice for UK players who value a wide slot library and diverse live gaming. In my opinion, with clearer policy language, a broader RNG table offering, and a more credible social presence, the operator could become an even stronger contender in the UK market. If you want a secure, licensed platform with loads of daily new slots and standout live shows, give 666 Casino a try – you might just find your next favourite gaming home.

Momchil Chonov
Gambling Expert & Content Lead
6.9/10 Register Here

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