Since an early age, Mária has had a fondness for foreign languages, especially German and English. She previously attended university and worked in a shop. Later, she realized she needed to put her skills to better use, so she took a significant step on her professional path by joining our team as a...
OverviewSafety and fairnessGamesBonusesPaymentsCustomer supportUser reviewsDiscussion
Mária B.
Author
Mária Buvalová
Casino Analyst
Since an early age, Mária has had a fondness for foreign languages, especially German and English. She previously attended university and worked in a shop. Later, she realized she needed to put her skills to better use, so she took a significant step on her professional path by joining our team as a...
Our independent casino review team has taken a detailed look at 666 Casino in this review and evaluated its qualities and drawbacks in accordance with our casino review process. In assessing this casino's safety, our review team has considered crucial factors such as the fairness of its Terms and Conditions, licenses, player complaints, customer support, limits, and other relevant aspects to determine where it falls on the spectrum from safe and legit casino to a potential scam.
Our evaluation has led to the casino's Safety Index, a numerical and verbal representation of our findings regarding safety and fairness of online casinos. The higher the Safety Index, the greater the assurance of playing and receiving winnings without problems. 666 Casino scored a High Safety Index of 8.6, which is why it could be considered a favorable option for most players in terms of fairness and safety. Read our 666 Casino review to discover more about this casino and decide whether it is a suitable option for you.
Safety Index – 666 Casino fairness and safety
In determining a casino's Safety Index, we follow complex methodology that takes into account the variables we have gathered and evaluated in our review. This includes the casino's T&Cs, player complaints, estimated revenues, blacklists, and various other factors.
In our review of 666 Casino, we thoroughly read and reviewed the Terms and Conditions of 666 Casino. We discovered some rules or clauses that were not to our liking and, on the whole, we find the T&Cs to be unfair. Unfair or predatory rules can possibly be used against players to excuse not paying out winnings to them. Because of our findings, as we identified some serious issues with fairness of this casino's T&Cs, we suggest seeking a casino with fairer T&Cs or at least proceeding with caution if you settle on playing at this casino.
Based upon our estimates and collected information, we consider 666 Casino a very big online casino. This casino has a very low value of denied payouts in player complaints with respect to its size (or it hasn't had any complaints). When evaluating a casino, we consider the number of complaints in relation to the casino's size, since bigger casinos generally receive a higher number of complaints due to a larger player base.
Based on our findings, no important casino blacklists feature 666 Casino. The presence of a casino on various blacklists, including our own Casino Guru blacklist, is a potential sign of wrongdoing towards customers. Players are encouraged to consider this information when deciding where to play.
Taking into account all factors in our review, 666 Casino has scored a Safety Index of 8.6, representing a High value. For most players seeking an online casino that prioritizes fairness in the online gambling experience they offer, this casino is a recommendable choice.
Note: 666 Casino is linked to 52 other online casinos, based on the information we've collected. Because of the relationship between these casinos, we have considered the qualities of the related casinos when calculating the Safety Index of 666 Casino. They had a positive effect.
666 Casino Terms and Conditions
Our team goes through each casino's Terms and Conditions as part of our review to assess their fairness. Our reviews often turn up clauses and rules in casino T&Cs that we regard as unfair or predatory. In some cases, these can be used to justify not paying out player winnings.
We found some questionable rules or clauses during our review, because of which we consider the Terms and Conditions of 666 Casino to be unfair.
Note: Please take a look at our particular findings from the T&Cs examination here.
Complaints from 666 Casino players
We place a lot of weight on player complaints when reviewing casinos. They offer a clear picture of the issues players encounter and how casinos respond to them. We look at all complaints through our Complaint Resolution Center and from other sources. These all go into each casino's Safety Index.
We currently have 0 complaints directly about this casino in our database, as well as 7 complaints about other casinos related to it. Because of these complaints, we've given this casino 50 black points in total, out of which 50 come from related casinos. You can find more information about all of the complaints and black points in the 'Safety Index explained' part of this review.
User feedback and reviews of 666 Casino
At Casino Guru, users have the opportunity to provide ratings and reviews of online casinos in order to share their opinions, feedback, or experiences. Based on these, we then generate a complete user satisfaction score, which varies from Terrible to Excellent.
The user satisfaction feedback of 666 Casino shared by 6 users has resulted in a Good User feedback score. You may access the casino's user reviews in the User reviews section of this page.
Note: Since it is not uncommon that upset players leave many harmful reviews to damage casino's reputation, and some casinos post false reviews to increase their user feedback score, please note that user reviews may not accurately represent the casino's quality. We strive to filter these out and calculate an accurate user feedback score; however, for these reasons, we do not consider user feedback in our Safety Index calculation.
Licenses and company information
666 Casino is owned by Jupiter Gaming Ltd, and we have estimated its yearly revenues to be greater than $20,000,000. Based on the categorization we use, this makes it a big online casino.
666 Casino is licensed by United Kingdom Gambling Commission in United Kingdom.
Payment options, withdrawal limits and win limits
666 Casino supports 3 deposit methods. This includes: VISA, Mastercard, VISA Debit.
There are often restrictions on how much money players can win or withdraw at online casinos. In many cases, these can be high enough not to affect most players, but some casinos do have win or withdrawal limits that can be quite limiting. That is the reason why we look for these while reviewing casinos. The following table provides details on the casino's win and withdrawal limits.
Withdrawal limits
Win limits
Unlimited
No win limit
Note: It is unlikely that all of the payment options mentioned before can be used for both deposits and withdrawals. Similarly, some payment options may only be used in selected countries.
Customer support and language options
To be able to guide players towards casinos with customer support and website in a language they understand, we examine the available options as part of our review process. The table below lists the language options at 666 Casino.
Language
Website
Customer support
Live chat
English
24/7
Contacting the casino's customer support is part of our review process, so that we know whether players have access to a good quality service. Since customer support can assist you with problems related to registration process at 666 Casino, account problems, withdrawals, or other issues, it holds significant value for us. The customer support at 666 Casino came across as good in our tests.
Casino games and slots available at 666 Casino
Players can enjoy these types of casino games at 666 Casino: Slots, Roulette, Blackjack, Jackpot games, Live games, Live shows, Live bingo, Live blackjack, Live dice games, Live roulette.
Casino games supplied by 4 game providers are available. This includes Pragmatic Play, Gaming Corps, Wild Streak Gaming, S Gaming.
Bonuses and codes offered by 666 Casino
Online casinos offer bonuses to new or existing players to give them an incentive to create an account and start playing. No deposit bonuses, free spins, and deposit bonuses are some of the most sough-after bonus types. No deposit bonuses can be obtained by registering an account at the casino, while deposit bonuses are given out upon making a deposit. Moreover, casino promotions can also include bonus codes, welcome sign-up bonuses, or loyalty programs.
At present, there is 1 bonus from 666 Casino in our database:
66 EXTRA SPINS on Big Bass Bonanza
Please keep in mind that these bonuses might not be available to players from certain regions. See the 'Bonuses' section of this review for more details and to find out which offers are available to you.
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Company info
Owner
Jupiter Gaming Ltd
Operator
Jupiter Gaming Ltd
Established
2018
Estimated annual revenues
> $20,000,000
Safety and fairness
Safety and fairness
Take a look at the explanation of factors that we consider when calculating the Safety Index rating of 666 Casino. The Safety Index is the main metric we use to describe the trustworthiness, fairness, and quality of all online casinos in our database.
We go over the terms and conditions of each casino and look for unfair rules that could potentially be used against players. Any clauses we consider to be unfair result in a lower Safety Index for the casino.
Casino size
Big casinoVery big group
Bigger casinos are generally safer for players, because their high revenues allow them to pay out even very big wins without any issues and their quality has been proven by a large number of players. We take into account estimated revenues over the last 4 years and also consider revenues of related casinos.
Player complaints signify that the casino does not treat players right or deal with certain situations correctly. We consider the number and seriousness of complaints in relation to the casino’s size, as it can be expected that sites with more players will also have more complaints.
Blacklists
None
0x
If a casino appears on relevant blacklists, it is usually a sign that it has some negative qualities. We consider each blacklist and decrease the casino’s Safety Index based on our view of the situation and its seriousness.
Other factors
Neutral
There can also be other characteristics and qualities of a casino that influence its Safety Index, such as win limits, low withdrawal limits, fake games or licenses, bad or no customer support, a network of land-based shops, etc.
Explore the game selection available at 666 Casino. Find out what types of games are available, which game providers are supported, and which are the most popular titles available at the casino.
Game types
Games
Live games
Slots
Roulette
Blackjack
Betting
Video poker
Bingo
Baccarat
Jackpot games
Live games
Poker
Craps and dice
Keno
Scratch cards
eSports betting
Crash games
Available: 5
Not Available: 10
Live shows
Live baccarat
Live bingo
Live blackjack
Live dice games
Other live games
Live poker
Live roulette
Available: 5
Not Available: 3
Real Games
Verified by Gamecheck
Real Games
A selection of games from multiple game providers have been checked and NO fake games have been found.
Browse all bonuses offered by 666 Casino, including their no deposit bonus offers and first deposit welcome bonuses.
Casino Guru
We want players to understand gambling.
Payment methods
Payments
Browse an overview of payment methods supported by 666 Casino, along with related limits and fees associated with transactions to or from your casino account.
Payment methods
Transaction limits
Withdrawal limits
Not limited for GBP
Win limits
Unknown
Currencies
Traditional
Supported Fiat currencies.
GBP
Customer support
Customer support
Curious about the customer support options available at the casino? Explore the language options and support types, as well as the results of our customer support testing.
Language options
Website
Available in
1 language
English
All languages (1)
English
Live chat
Available in
1 language
English
All languages (1)
English
Customer support:
Available in
1 language
English
All languages (1)
English
Live chat rating
Good
Average response time: Instant
Based on 7 tests
Date and tester
Response time
Rating
22 Jun 2026
Mária B.
Instant
Good
25 Jul 2024
Burak O.
Not measured
Subpar
15 Aug 2023
Stefan M.
Not measured
Good
25 Jan 2023
Michaela S.
Not measured
Good
01 Jun 2022
Burak O.
Not measured
Good
01 Dec 2020
Tomas B.
Not measured
Good
03 May 2020
Viliam V.
Not measured
Good
E-mail support rating
Good
Based on 1 test
Date and tester
Rating
24 Jul 2025
Mária B.
Good
User reviews
User reviews of 666 Casino
This is a place to share experience with 666 Casino. Read what other players wrote about it or write your own review and let everyone know about its positive and negative qualities based on your personal experience.
User feedback:
Good
Rated by 6 users
Very positivePositiveNeutralNegativeVery negative
Do you have any experience with this casino?
Write a review
Casino Guru
We want players to understand gambling.
• 3 months ago
this is a casino i would recommend if you are starting out in the casino world for the 1st time, very user friendly, nice selection of casino games, however if you are looking for a full on casino experienced users should probably look elsewhere, there is a lot of top slot providers missing, for me in ireland pragmatic play, no limit, bgaming, relax gaming, push gaming, backseat gaming and bullshark gaming are all missing/unavailable to me which left me with only a handfull of slot provisders i like, having said that the slots are up to date and a lot of new slots are here, the site is very buggy, constantly refreshing or you get a pop up something went wrong, this became quite annoying after a while, i also decided to play blackjack, i am a low stakes player and could only find 1 table for 5 euro, none for 10 euro and 1 for 15 euro, this is not a great selection for the low stake gambler, i did manage to get on the 5 euro table a few times after waiting though and it was smooth, another thing experienced slot providers will notice instantly is no slot filter, when you finish playing a game you you have to x out of it then retype the provider into the search bar to go back to that provider, this is also very annoying after a while Huge plus side to this casino though is the lightning speed of verification and withdraw times, i did both on a SUNDAY! sent in documents and withdrew money and both were nearly instant, this is exellent news for all players as we all now a lot of casinos dont deal with payments at the weekend
all in all i had a good time here errors and smaller selection of slots than i would like but i will go back again for the hassle free deposit and withdraws
deposit and withdraw by paypal
very fast verification even on a sunday!
money withdrew no hassle and in paypal account in minutes!
friendly customer support
lot of slot providers missing
buggy site, kept refreshing/crashing a lot and everytime i log in i get a pop up saying verify your email even though i had already!
withdraw fees
lot of ooops something went wrong trying to play a lot of hacksaw games
very limited number of low stake blackjack tables
no slot provider filter
• 1 year ago
Any ones who planing to play on this side don't waste your money and time it's totally scammed.I deposit from my revolut account.And when I win,and try to withdraw my money 3/4 days my withdrawal was on pending and after so many time contract them they asked me my bank statement and id.I provided them Then they said wait for 48 hours and after 3 days said we didn't not expect Revolut bank account.I told them my deposit was also from my revolut about and they give a silly answer we except only deposit from revolut but you can't withdrawal to you revolut account.Now they took my deposit and withdrawal both...This site is totally scam...
Very poor customer service
Wait of time
When you deposit they expect Revolut but when you try to withdraw you win they didn't expect Revolut account. Very silly
666 Casino
Hello anwarmehmood1979,
Thank you for taking the time to leave your feedback on our casino, I’m sorry to hear that you weren’t happy with your experience at 666 Casino on this occasion.
Unfortunately there are some banks which we are unable to process withdrawals to due to their specific regulations as is explained in the site’s Cashout Policy; these banks are listed within the FAQs page and incudes Revolut Banking. However, in these instances if you contact Customer Support, the team will be able to assist you with withdrawing to an alternative method so that it can be processed accordingly.
I hope this helps to clarify for any future plays you have at 666 Casino and wishing you a positive experience in your next encounter with us!
Many thanks,
The 666 Casino Team
• 1 year ago
Fast customer service, good bonus offers even for existing customers, a wide selection of games from many different providers, free new customer bonuses, and quick help with problems
666 Casino
Hello,
Thank you very much for your review of our brand, your feedback is greatly appreciated.
We’re really happy to hear you’ve had such a positive experience with 666 Casino across many areas of our site; that you’ve been assisted when needed in a timely matter by our team, enjoyed our great library of games which we are always building on, as well as our ongoing offers and promotions for players to use should they want to.
As we continue to work on bringing you as a player the best user experience possible, we hope that you keep having an enjoyable time playing at 666 Casino.
Kind regards, The 666 Casino Team
• 1 year ago
Great casino, probably the best I've ever played at. There are lots of great slots, quick verification, and the support team is really helpful. I'll keep playing here since they always have good bonuses.
666 Casino
Hello,
Thank you for taking the time to leave a review, it is much appreciated by the team. Its great to hear that you’re having such an enjoyable experience at our casino. We are always working behind the scenes to improve aspects like you’ve mentioned such as adding the latest slots and providers, speeding up the interface and creating great promotions for our players; all to enhance their experiences. Therefore, its good to see that it is having a positive result and we will keep building on this to see that continue.
Kind regards, The 666 Casino Team
• 2 years ago
I appreciate the variety of games available on the platform, as well as the multiple withdrawal options. It's particularly convenient that I can choose between cryptocurrency and traditional payment methods, a feature that most other platforms don't offer.
• 2 years ago
Excellent games and casual play, really enjoyed it and was transfixed
Casino choice
No withdrawal
Discussion
666 Casino discussion
Discuss anything related to 666 Casino with other players, share your opinion, or get answers to your questions.
Casino Guru
We want players to understand gambling.
Casino Bonuses
666 Casino bonuses
Browse all bonuses offered by 666 Casino, including their no deposit bonus offers and first deposit welcome bonuses.
Casino Guru
We want players to understand gambling.
Payment methods
Payments
Browse an overview of payment methods supported by 666 Casino, along with related limits and fees associated with transactions to or from your casino account.
Payment methods
Transaction limits
Withdrawal limits
Not limited for GBP
Win limits
Unknown
Currencies
Traditional
Supported Fiat currencies.
GBP
Customer support
Customer support
Curious about the customer support options available at the casino? Explore the language options and support types, as well as the results of our customer support testing.
Language options
Website
Available in
1 language
English
All languages (1)
English
Live chat
Available in
1 language
English
All languages (1)
English
Customer support:
Available in
1 language
English
All languages (1)
English
Live chat rating
Good
Average response time: Instant
Based on 7 tests
Date and tester
Response time
Rating
22 Jun 2026
Mária B.
Instant
Good
25 Jul 2024
Burak O.
Not measured
Subpar
15 Aug 2023
Stefan M.
Not measured
Good
25 Jan 2023
Michaela S.
Not measured
Good
01 Jun 2022
Burak O.
Not measured
Good
01 Dec 2020
Tomas B.
Not measured
Good
03 May 2020
Viliam V.
Not measured
Good
E-mail support rating
Good
Based on 1 test
Date and tester
Rating
24 Jul 2025
Mária B.
Good
User reviews
User reviews of 666 Casino
This is a place to share experience with 666 Casino. Read what other players wrote about it or write your own review and let everyone know about its positive and negative qualities based on your personal experience.
User feedback:
Good
Rated by 6 users
Very positivePositiveNeutralNegativeVery negative
Do you have any experience with this casino?
Write a review
Casino Guru
We want players to understand gambling.
• 3 months ago
this is a casino i would recommend if you are starting out in the casino world for the 1st time, very user friendly, nice selection of casino games, however if you are looking for a full on casino experienced users should probably look elsewhere, there is a lot of top slot providers missing, for me in ireland pragmatic play, no limit, bgaming, relax gaming, push gaming, backseat gaming and bullshark gaming are all missing/unavailable to me which left me with only a handfull of slot provisders i like, having said that the slots are up to date and a lot of new slots are here, the site is very buggy, constantly refreshing or you get a pop up something went wrong, this became quite annoying after a while, i also decided to play blackjack, i am a low stakes player and could only find 1 table for 5 euro, none for 10 euro and 1 for 15 euro, this is not a great selection for the low stake gambler, i did manage to get on the 5 euro table a few times after waiting though and it was smooth, another thing experienced slot providers will notice instantly is no slot filter, when you finish playing a game you you have to x out of it then retype the provider into the search bar to go back to that provider, this is also very annoying after a while Huge plus side to this casino though is the lightning speed of verification and withdraw times, i did both on a SUNDAY! sent in documents and withdrew money and both were nearly instant, this is exellent news for all players as we all now a lot of casinos dont deal with payments at the weekend
all in all i had a good time here errors and smaller selection of slots than i would like but i will go back again for the hassle free deposit and withdraws
deposit and withdraw by paypal
very fast verification even on a sunday!
money withdrew no hassle and in paypal account in minutes!
friendly customer support
lot of slot providers missing
buggy site, kept refreshing/crashing a lot and everytime i log in i get a pop up saying verify your email even though i had already!
withdraw fees
lot of ooops something went wrong trying to play a lot of hacksaw games
very limited number of low stake blackjack tables
no slot provider filter
• 1 year ago
Any ones who planing to play on this side don't waste your money and time it's totally scammed.I deposit from my revolut account.And when I win,and try to withdraw my money 3/4 days my withdrawal was on pending and after so many time contract them they asked me my bank statement and id.I provided them Then they said wait for 48 hours and after 3 days said we didn't not expect Revolut bank account.I told them my deposit was also from my revolut about and they give a silly answer we except only deposit from revolut but you can't withdrawal to you revolut account.Now they took my deposit and withdrawal both...This site is totally scam...
Very poor customer service
Wait of time
When you deposit they expect Revolut but when you try to withdraw you win they didn't expect Revolut account. Very silly
666 Casino
Hello anwarmehmood1979,
Thank you for taking the time to leave your feedback on our casino, I’m sorry to hear that you weren’t happy with your experience at 666 Casino on this occasion.
Unfortunately there are some banks which we are unable to process withdrawals to due to their specific regulations as is explained in the site’s Cashout Policy; these banks are listed within the FAQs page and incudes Revolut Banking. However, in these instances if you contact Customer Support, the team will be able to assist you with withdrawing to an alternative method so that it can be processed accordingly.
I hope this helps to clarify for any future plays you have at 666 Casino and wishing you a positive experience in your next encounter with us!
Many thanks,
The 666 Casino Team
• 1 year ago
Fast customer service, good bonus offers even for existing customers, a wide selection of games from many different providers, free new customer bonuses, and quick help with problems
666 Casino
Hello,
Thank you very much for your review of our brand, your feedback is greatly appreciated.
We’re really happy to hear you’ve had such a positive experience with 666 Casino across many areas of our site; that you’ve been assisted when needed in a timely matter by our team, enjoyed our great library of games which we are always building on, as well as our ongoing offers and promotions for players to use should they want to.
As we continue to work on bringing you as a player the best user experience possible, we hope that you keep having an enjoyable time playing at 666 Casino.
Kind regards, The 666 Casino Team
• 1 year ago
Great casino, probably the best I've ever played at. There are lots of great slots, quick verification, and the support team is really helpful. I'll keep playing here since they always have good bonuses.
666 Casino
Hello,
Thank you for taking the time to leave a review, it is much appreciated by the team. Its great to hear that you’re having such an enjoyable experience at our casino. We are always working behind the scenes to improve aspects like you’ve mentioned such as adding the latest slots and providers, speeding up the interface and creating great promotions for our players; all to enhance their experiences. Therefore, its good to see that it is having a positive result and we will keep building on this to see that continue.
Kind regards, The 666 Casino Team
• 2 years ago
I appreciate the variety of games available on the platform, as well as the multiple withdrawal options. It's particularly convenient that I can choose between cryptocurrency and traditional payment methods, a feature that most other platforms don't offer.
• 2 years ago
Excellent games and casual play, really enjoyed it and was transfixed
Casino choice
No withdrawal
Discussion
666 Casino discussion
Discuss anything related to 666 Casino with other players, share your opinion, or get answers to your questions.
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