Up to £66 + 66 Spins

  • Gaming options
  • Slot selection
  • Customer support
  • No sportsbook
  • No bingo

18+. New players only. Min deposit £20. Max bonus 100% up to £66 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 apply. BeGambleAware.org


  • UKGC License Number:
  • Customer Support:
    Live Chat, Email
  • Products:
    Slots, Live Casino, Slingo

666 Casino

666 Casino is part of a group of around 60 online casinos operated by AG Communications Ltd. Other online casinos in the group include Mega Casino, Hot 7 Casino, and King Casino. None of the casinos in the group is licensed individually as they are covered by the licence that AG Communications Ltd holds with the UK Gambling Commission.

Their registered address is High Street 135, Sliema, SLM 1548 Malta, and the UKGC account number is 39483. AG Communications are also registered with the Malta Gaming Authority at the same address. Both the UKGC and MGA licences make reference to Aspire Global; the parent company that owns AG Communications.

License Information

License Violations

There are no licence violations recorded for 666 Casino, but there was a breach recorded for AG Communications in November 2022. This was related to non-compliance with anti-money laundering regulations.

Introduction to 666 Casino

666 Casino was founded in 2017 and has steadily built up a dedicated base of casino players. Although 666 Casino is part of a large group of online casinos operated by AG Communications Ltd, it has its own unique and distinctive style. With a devilish red character waiting to welcome players, the suggestion is that the play is red-hot!

The structure of 666 Casino is complicated, with several companies responsible for different elements. The brand is owned by Jupiter Gaming Ltd, a company based in Jersey. However, the licensing is provided in the UK by AG Communications Ltd, a company that holds a full UKGC licence for casino play. AG Communications Ltd are owned by Aspire Global, and in Malta, licensed play is offered via the latter, not the former.

Welcome Bonus

Casino Bonus100% deposit match bonus up to £66 plus 66 free spins
Wagering Requirementsx35
Time to Wager21 days
18+. New players only. Min deposit £20. Max bonus 100% up to £66 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 apply. BeGambleAware.org

666 Casino has a two-tier welcome bonus, giving new players a chance to collect both free spins and a cash bonus.

The first tier of the bonus is a deposit match of 100% up to a maximum of £66. This will be credited when registration is complete and the first qualifying deposit of a minimum of £20 is made.

The second tier of the bonus can be claimed with the second deposit and provides 66 free spins for the Big Bass Bonanza online slot. The spins must be used within 24 hours, and winnings are capped at £100.

Wagering requirements of x35 apply to the bonus, which means that winnings must be played through 35 times before players can request a withdrawal. These wagering requirements must be fulfilled within 21 days.

Once new players fulfil the criteria for the welcome bonus, it will be credited automatically. No special bonus codes are needed to receive either the cash bonus credit or the free spins. Players can contact 666 Casino and ask for the bonus to be removed if they prefer not to receive it.

Online Casino Games

There are over 1500 casino games available at 666 Casino, giving players plenty of options. There isn’t a sports betting facility, but that’s the only element missing, as online slots, traditional casino games, and live dealer play are all well-represented.

The range of online slots at 666 Casino is impressive, with titles from all of the top studios, such as Microgaming and Pragmatic Play, available. The slots library is easy to navigate, with the facility to either browse through the whole catalogue or search for a specific title. Players can also use the filters to narrow down the selection; this allows you to search either by provider or theme. The latter includes popular themes such as fruit and Egypt and options like Megaways or Jackpot King.

Not quite bingo but a bit different to slots; Slingo has its own dedicated space at 666 Casino with a selection of themed games.

Traditional casino games, including roulette and blackjack, are available, and there are live dealer versions too. As well as conventional casino games, there are also game shows such as Dream Catcher included in the live dealer area.

How To Play at 666 Casino

666 Casino offers licensed play in the UK market, and this means that it has to operate very tight rules, particularly when it comes to KYC (Know Your Customer) requirements. Any individual who wants to play their casino games has to sign up for an account and provide proof of their identity before being able to join, play, and withdraw cash prizes. Luckily it doesn’t take long to sign up to 666 Casino, following this process!

Visit the 666 Casino website

The 666 Casino site has a fun and upbeat design, and prospective players can have a good root around all the titles that are available. Being able to see what’s on offer before joining means you don’t end up joining casinos that are unsuitable.

Complete the registration process

Click on the red “Join” button on the top right of the screen, and a pop-up box will appear. Fill in your email, and create a username and password to continue. Follow the prompts on screen to finish your registration. You may need to verify your email address to continue.

Make a deposit

Once your registration has been confirmed, you’ll need to make a deposit to trigger the first bonus. Head to the Cashier section of your account and choose your preferred payment method. Make sure you check the terms of the bonus so your deposit meets the minimum qualifying amount.

Start playing with the welcome bonus

Once you have made the deposit successfully, the bonus will be credited to your account, and you’ll be able to start playing immediately.

There is no need to download a mobile app to join up as the site is fully optimised for mobile play.

666 Casino Review Summary

Launched in 2017, 666 Casino has a proven track history and is part of a group of online casinos that are operated by a well-known provider. Both AG Communications Ltd and Aspire Global are fully licensed, allowing 666 Casino to provide fully licensed play in the UK.

There is only one complaint lodged on their file, and this relates to the operator rather than 666 Casino specifically.

The FAQs page on the 666 Casino is very thorough and well-organised, allowing players to easily find the information they need. If more information is required, players can get in touch with 666 Casino via the contact form online.

Here at UKCasino.com, we use rankings from other top review sites online to reach our score. Below are some of the ratings we used:

Casino.com3.3 / 5.0
Author Dean McHugh

I am a full-time Sports Betting & Casino Content Writer based in the UK. I have years of knowledge, covering a broad range of different sports. If I don’t know about it, it's not worth knowing! My favourite sports are Football, Tennis, Golf, Snooker, Cricket, Boxing and MMA. As you can tell...I love sports! I have a passion for the Casino and iGaming industry, I have worked in and around it for the best part of 20 years.