666 Casino Review – Bonuses, Games & Winning Features

"It's time to relight your fire"

Adam Dickenson, Casino.com expert

While we made this 666 Casino review, the aspect that impressed us the most was the amount of games available to play. With 1500+ titles, from the latest online slots to live dealer games such as online roulette and blackjack, 666 Casino goes above and beyond.

One area that could be improved is customer support. We would like to see a 24/7 live chat open to everyone rather than just registered players. Yet, the banking options are way above average for the industry, with 10+ options to choose from.

There are no concerns about safety either, as the website is properly licensed by the UKGC. Moreover, it uses state of the art SSL technology to keep your financial and personal data safe. Furthermore, the site offers a great bonus especially for slot players, and the signup process is easy and fast. Overall, 666 Casino is a platform that we recommend, as it will keep you entertained for hours on end

My Rating: 3.3/5

A note from Casino.com: Our expert writers perform in-depth research on each casino to provide you with their professional, impartial opinion. However, when you click on certain links in the review and make a deposit, we may receive a commission (don't worry - this costs you nothing).

It’s time to relight your fire, with this devil themed platform aptly named, 666 Casino. With 500+ online slots to play, as well as the latest live dealer table games, 666 is one of the hottest online casinos for UK players.  

To give you a peace of mind, the operator is regulated by the United Kingdom Gambling Commission (UGKC), which means funds are safe and games are fair.  

Founded in 2017, and owned and operated by Aspire Global, the mascot is a devil, similar to that of the popular comic book, Hellboy. In our 666 Casino review you’ll learn about the bonus you can claim, the deposit and withdrawal options and the quality of customer support, just to name a few. Let’s jump in and get down to the most important feature of this casino.

When you first visit 666 Casino, you’ll be taken aback by the red and black theme, with the numbers 666 playing an overarching role.  

The devil mascot is the feature image, and it also advertises the welcome bonus, which you guessed it, is £66.  

In the navigation bar, you’ll find the gaming catologue, including slots, live casino, blackjack, roulette and promotions.  

For all the key information, we will cover everything in this 666 Casino review, but you will also find most of it located at the bottom of the screen

Whenever you play at any online casino, the gaming selection is always a major factor.  

You’ll be glad to hear that there’s tons of options at 666 Casino, starting off with 500+ slots and 100+ table games, with live options too!  

Our experts briefly cover the most popular games you can play at Casino 666.

• 666 Casino Roulette: One of the most popular online casino games in the UK, roulette is a game of chance, but you can also utilise strategies for a more exciting experience. The live dealer options are way above average on 666, with 40+ variants to play. Some of the most popular types are The Hippodrome Live Roulette, and Speed Roulette Live.
• Blackjack Online: If you want to beat the house and get closer to 21, then 666 Casinos blackjack options will impress you. The live dealer online blackjack games are supplied by leading providers, PragmaticPlay and Evolution Gaming. With 40+ variants to play, some of the most popular titles are VIP Blackjack and Power Blackjack.
• Slot Machines: The online slot games selection at 666 slots Casino is extensive. For starters, on the homepage you’ll find four sections; slots, Megaways ™ , drop and wins, and jackpots. The platform works with 20+ of the best gaming providers for slots, including Hacksaw, Quickspin and Ruby Play. The icing on the cake is the 40+ BigTime Gaming produced Megaways ™ slots to play.
• Slingo: Slingo is a portmanteau of bingo and slots. It’s a fun, exciting game where you can win big with just a small stake. Currently there are only five slingo titles to play at 666 Casino, with the most famous one being NetEnt’s Starburst. However, always be on the lookout as new games are added every week.

It’s fair to say that bonuses and promotions are a key part of online casinos.  

That’s why in this 666 Casino review, we break down the casino promotions available to UK players from the start.  

Let’s take a closer look.  

Welcome Package 

The only 666 Casino bonuses to speak of is the welcome package, which all new UK players qualify for.  

To claim the deal, all you need to do is make a minimum deposit of £20. From there, 666Casino will 100% match your funds up to £66.  

And it doesn’t end there, on your second deposit (min £20) you’ll get 66 free spins on Big Bass Bonanza, a popular PragmaticPlay slot.  

The wagering requirement is 35x, but the maximum you’re able to withdraw with free spins is £100.  

When you play at 666 Casino, there are 15+ banking and payment methods to deposit and withdraw with. This is way above the industry standard, and of course, for each one, the GBP is accepted. The cherry on the cake is there are no deposit fees.  

In our 666 Casino review, we highlight the most popular banking methods for UK players.  

Credit/Debit Cards  

If you prefer a mainstream banking method like Visa/Mastercard, then no problem! The deposit is instant, and the minimum amount is £5. When you win, you will have to wait 2 - 6 working days to receive your funds.  

• Trustly  - An easy-to-use e-wallet solution, Trustly is the perfect choice for high rollers. The maximum deposit is £100,000 and the minimum deposit is £5. Deposits are instant, while withdrawals will typically take 2 - 4 working days.
• Skrill - Skrill is an e-wallet that is fast and secure. If you make a deposit with this method it will be instant, while the minimum is £5 and the maximum is £10,000. For withdrawals, expect to get your money in 2 - 4 working days.
• PayPal - If you want to connect your PayPal account to 666 Casino, it’s simple! It’s a quick, secure solution where deposits are instant and the minimum amount is £5. When it comes to withdrawing your winnings, PayPal is a faster option, as you’ll have to wait 2 - 4 working days

The quality of games available to play makes a huge difference to the overall gaming experience. Nobody wants lags or games that crash, so playing the best-made games is paramount.  

Fortunately, 666 Casino only works with the finest casino gaming providers in slots and table games. We're talking about established names such as Evolution Gaming, Microgaming and Play ‘n GO.

• Evolution: Gaming Founded in 2006, Evolution is at the forefront of live dealer casinos. In addition, the company focuses on mobile gaming. At 666Casino, you’ll find 90+ table games and game shows by Evolution. Some of the most popular include live baccarat, live blackjack, and live roulette.
• Microgaming: Microgaming has been setting the industry standard for online slots since 1994. Famous for being the world's first true online casino software, Microgaming produces innovative games with fun gameplay. In recent times, the company has explored live dealer options and continues to go from strength to strength.
• Play ‘n GO: Play’n GO is a global leader in the online slot industry. In fact, it was a pioneer in mobile gaming, optimizing its slot titles to play on the go. Starting in 2005, Play’n GO makes top-quality slots with HD graphics and exciting gameplay. The biggest titles the company makes are Book of Dead, Wild Blood and Ninja Fruits.

Safety and security for UK players is one of our primary concerns when we assembled this 666 Casino review.  

You’ll be glad to hear that the operator holds a United Kingdom Gambling Commission (UKGC) license, meaning UK players are protected.  

Why does this matter? First, UKGC guarantees the fairness of games, and that all numbers generated are completely random. Second, finances must be held in a separate account to 666 Casinos, therefore when you win, you can withdraw right away.  

If you ever have any problems with being paid out, you can submit a request to UKGC, which gives you peace of mind when you play games at 666 Casino.

Currently, there is no 666 Casino app to speak of, either for Android or iOS. However, if you wish to play on your smartphone then no problem.

Just open up your preferred browser e.g. Safari or Chrome, search 666 Casino and login into your account. The site is responsive to any screen size, and the even better news is that all the games available on a computer can be played on a smartphone too.  

All the functions on the site such as making a deposit can also be done via your smartphone. And the icing on the cake is the games load quickly and operate in the smooth fashion.

We found registration to be a piece of cake when we wrote this 666 Casino review.  

The 666 Casino sign-up is straightforward and only takes a few minutes. Below is an easy-to-follow step-by-step guide to give you an insight.  

• Step 1: Click the join here button  

When you’re on the site, you can either press the big join here button, which is the featured image. Or, in the top right of the corner, click the join button, located next to sign in.  

• Step 2: Fill in your personal information  

Next is to input your personal information, starting off with your email address and a unique username. From there, fill in your full name, DOB, billing address, and phone number  

• Step 3: Make a deposit  

To get the best out of 666 Casino and to be able to win online casino real money, you must make a deposit. There are 10+ methods, and the minimum amount is £5. At this point you are able to claim the welcome package too.  

• Step 4: Claim the welcome package  

To claim the 666 Casino bonus, all you need to do is make a minimum deposit of £20. The bonus funds will be automatically applied to your account. Also, you’ll be rewarded 66 free spins on Big Bass Bonanza on your second deposit.  

• Step 5: Play and win 

Go to the homepage and select which games you wish to play. You can use your bonus funds or your own. When you win and want to withdraw, you’ll be asked to provide a copy of your passport/ driver's license, and proof of address such as a utility bill.

We tested the platform for the quality of customer support while we assembled this 666 Casino review.  

On the whole, 666 Casino does a good job, but improvements could be made. First, to access the live chat you must be registered, which can be irritating if you want to ask questions before signing up.  

However, you’re able to use the contact form if you have any problems at, anytime. It’s simple to fill in, and the response time is 24 - 48 hrs.  

For further support, the FAQ section is comprehensive and answers the most salient questions.  

No email, but a contact form