666 Casino Casino Online UK Casino Review & Bonus

We tested the first deposit bonus for every UK online casino to determine which casino has the best ROI for new depositing players. We took every casino’s first deposit offer and ran it through our custom formula to determine it’s actual value (ABV) when depositing £100 into a new account. Here is how 666 Casino UK performed in our ABV100 test.

Unfortunately, 666 Casino Casino’s welcome bonus for a first deposit of £100 requires you to risk so much more than you deposited that it earned it a negative Actual Bonus Value (ABV). The actual value of 666 Casino Casino’s welcome bonus was -£9.77.

– 21 Casino: If you’re looking for the largest possible welcome bonus value, they won our the United Kingdom max bonus test.
– 21 Casino: If you’re more cautious with your first deposit, they won our UK online casino welcome bonus test for first deposits of £100.

666 Casino online casino came in 83rd place out of 133 casinos in our first deposit bonus test with an ABV of -£9.77. This result is based on a £100 first deposit and considers playthrough requirements and other wagering conditions. 666 Casino Casino’s first deposit bonus is worth -£19.23 less than the UK state average. It’s a below average result.

If you are looking for a valuable first deposit bonus, consider choosing an UK online casino ranked higher on our casino bonus top list for the United Kingdom.

Test Results: Bonus Value for a £100 Deposit

Winner: 21 Casino Casino, TBV100: £61.71
In 83rd place : 666 Casino Casino, TBV100: -£9.77
Average Bonus Value of £100 first deposit in UK: -£29

See 666 Casino UK Online Casino full test results here.

If you are considering playing at an online casino in the United Kingdom, you should not overlook customer service as a factor. Quality customer service means having your questions answered quickly and effectively. But, with 133 different UK online casinos, how could you expect to know which one has the best customer support?

That’s why we tested the responsiveness and speed of customer service at every online casino in the United Kingdom for you.

How quickly and often does customer service respond to emails at 666 Casino Online Casino?

666 Casino Casino was below average when it came to responding to customer support questions via email. In fact, its reply percentage 0% was 100% less than the average online casino in the United Kingdom. 666 Casino Casino’s ranking in our customer service test was negatively affected by their lack of reliable customer support.

666 Casino Casino responded to our email support questions in [EMAIL-REPLY-TIME] on average. This was just over 18 hours slower than the average online casino and earned 666 Casino Casino 87th place in the United Kingdom.

If you’d like a more reliable cusomer support from your casino, then you shoudl review our UK online casino top list.

Test Results – Average Email Response Time

Winner: Vegas Mobile Casino Casino, 7 minutes
In 87th place : 666 Casino Casino
Average email response time of online casinos in New Jersey: just over 18 hours

Does 666 Casino offer a live chat?

Does 666 Casino has a live chat?: Yes
Opening Hours: 7 days a week 08:00 – 00:00 BST

See 666 Casino UK Online Casino full test results here.

Most gamblers prefer to have options when it comes to game selection at their online casino. But, it’s not realistic for someone to be able to assess and measure the game libraries of every online casino in the United Kingdom. This is why we decided to test 666 Casino Casino’s library of games for categories like sports betting, slots, roulette, blackjack, and live dealer games.

Here’s how well 666 Casino UK did in our game library test for the United Kingdom.

How large and diverse is 666 Casino casino’s game library?

666 Casino Casino has a strong online casino library of traditional casino games and even offers live casino, poker and bingo in its library. However, 666 Casino Casino doesn’t currently offer odds, livebetting, fantasy sports or horses at its UK online casino.

The variety and total size of 666 Casino Casino’s library, were used to give it a ranking of 94th out of 133 UK online casinos in our casino game catalog test.

666 Casino Casino finished our UK online casino game library test with a below average rating. The size and variety of games at 666 Casino Casino were not consistent with other online casinos in the United Kingdom. If you want more variety and gaming options when gambling, you may want to check out another the United Kingdom online casino.

Test Results – Which UK online casino has the best game selection?

Winner: Videoslots Casino
Number of Games: 6237 games
Non-traditional Game Types : live casino, livebetting, poker and bingo

In 94th place : 666 Casino
Number of Games: 844 games
Non-traditional Game Types: live casino, poker and bingo

Average number of online casino games at an UK online casino : 1531 games

See 666 Casino UK Online Casino full test results here.

A slow loading online casino can lead to a poor gambling experience. Unfortunately, testing each UK online casino’s page load speed is not an easy task. Fortunately, we tested the load times of every online casino in the United Kingdom for you.

How Fast is 666 Casino online casino?

While not the best, 666 Casino Casino did have an above average rating in our last UK online casino page load test. With an average web page laod time of 2.10, you’re unlikely to have any lags while gambling at 666 Casino UK.

See 666 Casino UK Online Casino full test results here.

Test Results – Which UK Online Casino is the Fastest?

Winner: Vegas Mobile Casino Casino
Average Page Load Speed : 0.33 seconds

In 56th plats: 666 Casino casino
Average Page Load Speed : 2.10 seconds

Average page load speed of an UK online casino: 3.07 seconds

Bonus and Promotions Test

For our UK online casino bonus and promotions test, we considered and included both no deposit bonuses and first deposit promotions at each online casino. For the first deposit bonus, we used a standard £100 deposit as the baseline since each casino has its own maximum deposit eligibility for first deposit bonuses.
We call our calculation the Actual Bonus Value (ABV) and it includes different metrics and playthrough requirements depending on the bonus we’re evaluating. The ABV100, for example, looks at the value of a bonus if we deposit £100.
Below are 666 Casino’s bonus and promotion test results.

666 Casino UK online casino did not offer a No Deposit Bonus to new players.

First Deposit Bonus Type: Match
Minimum Deposit Amount: £20
Actual Bonus Value for a £100 First Deposit: -£9.77
ABV100 First Deposit Rank: 83 out of 133
ABV100 First Deposit Stars: 1 out of 5 stars

666 Casino UK online casino did not offer Bonus Spins as part of its welcome bonus package.

We then combined the value of 666 Casino’s no deposit bonus, first deposit bonus (£100), and available bonus spins to create a complete overview of the value of 666 Casino UK online casino’s welcome bonus.

Actual Value of Total Welcome Bonus Package: -£9.77
Welcome Bonus Rank: 83 out of 133
Welcome Bonus Stars: 1 out of 5

Customer Support Test

For our online casino customer support test in the United Kingdom, we considered the speed and responsiveness of each casino’s online support via email and live chat. These two tests in addition to live chat availability (hours of operation), were used to determine the total rankings and stars awarded to each UK online casino.
Below are 666 Casino’s results for the email and live chat customer service tests as well as its overall ranking relative to all the United Kingdom online casinos we tested.

Email Reply Time:
Email Test Ranking: 87 out of 133
Email Support Stars: 1 out of 5

Live Chat Operating Hours: 7 days a week 08:00 – 00:00 BST

Casino Game Library Test

In our online casino game library test for the United Kingdom, we focused on the total number of games available as well as the categorical variance of each casino’s library.
For example, did the casino offer poker? Did it have sports betting? How many online slots does it currently have available?
By combining the breadth and depth of UK online casino’s game library, we believe we can provide an accurate answer to “which online casino in the United Kingdom has the best game selection?”
Below is 666 Casino’s results in our game selection test and how it compared to every UK online casino we tested.

Total Number of Casino Games: 844
Total Number of Game Types: 3, live casino, poker and bingo
Casino Game Selection Ranking: 66 out of 133
Casino Game Selection Stars: 3.4 out of 5

Online Casino Speed Test

In our online casino game library test for the United Kingdom, we focused on the total number of games available as well as the categorical variance of each casino’s library.
For example, did the casino offer poker? Did it have sports betting? How many online slots does it currently have available?
By combining the breadth and depth of UK online casino’s game library, we believe we can provide an accurate answer to “which online casino in the United Kingdom has the best game selection?”
Below is 666 Casino’s results in our game selection test and how it compared to every UK online casino we tested.

Average Load Time: 2.10 seconds
Online Casino Speed Ranking: 56 out of 133
Online Casino Speed Stars: 3 out of 5

Total Ranking of 666 Casino UK online casino

When calculating the total ranking for 666 Casino we considered its scores and star ratings for each of the individual casino tests. By combining 666 Casino’s scores, we can compare its results against all the other UK online casinos to determine which online casino is the best in the United Kingdom.

Test points based on 666 Casino’s rankings (the lower the better):
Bonus and Promotions: 52 points
Customer Support: 103 points
Game Selection: 66 points
Casino Speed: 56 points
Total: 108.06 points
Ranking compared to other UK online casinos: 95 out of 133 casinos

Stars based on 666 Casino’s test results: Bonus and Promotions: 1 out of 5
Customer Support: 1 out of 5
Game Selection: 3.4 out of 5
Casino Speed: 3 out of 5
Average: 2.25 out of 5 (displayed as 2.28125 stars in reviews and top lists)
Star ranking compared to other UK online casinos: 97 out of 133

Our overall ranking of 666 Casino casino includes both points and stars which we weight equally. If a casino is tied, we use points as the deciding factor to determine which UK online casino is best. 666casino.com’s total ranking is 121 out of 133 UK online casinos.