21 Casino Review (August 2026)

Checkout what 21 Casino has to offer UK players!

21 Casino offers UK players a fantastic catalogue of games, from traditional slots to a thrilling live casino. Overall, the site offers a prestigious online casino experience with something for everyone.

21 Casino
0x Wagering 30 Cash spins
10x Wagering 70 Bonus Spins
To the casino
18+ | Play Responsibly | Gambleaware.org | 18+. New players only. Welcome Offer is 30 Cash Spins on Book of Dead available with a min. £15 first deposit + 70 Book of Dead Bonus Spins available with a min. £10 second deposit. Cash + Bonus Spins must be used within 10 days. Cash Spin winnings credited as cash, capped at £25 and immediately withdrawable. Any winnings from Bonus Spins will be added as Bonus Funds and capped at £100. There are wagering requirements for players to turn these Bonus Funds into Cash Funds. This is 10 times the value of the Bonus Funds. Only bonus funds count towards wagering contribution. Affordability checks apply. | Terms & conditions apply.

21 Casino Summary

21 Casino was founded in 2015 and has since become one of the most popular online casinos in the UK. They have a large variety of games and a generous welcome offer. We'd love to see more regular rotating promotions at this casino, as well as an addition of an FAQ page for added customer support. But overall, 21 Casino is a trusted brand and one of the UK's finest.

Pros

  • Generous welcome bonus
  • 5,000+ games
  • 80+ software developers
  • Many jackpot slots
  • Plenty of ELK and Pragmatic Play games
  • No payment fees
  • Deposit from £10
  • Mobile app
  • Good selection of payment methods

Cons

  • Not many game shows
  • Lack of regular promotions
21 Casino 81

Overall Score

Reviewed by Nicola Wrebel Read more about our new Casino Review process

21 Casino No Deposit Bonus Spins

Book of Dead
93
10
Free spins
10x Wagering
To the casino Review
18+ | Play Responsibly| Gambleaware.org| 18+. New players only. Welcome Offer is 30 Cash Spins on Book of Dead available with a min. £15 first deposit + 70 Book of Dead Bonus Spins available with a min. £10 second deposit. Cash + Bonus Spins must be used within 10 days. Cash Spin winnings credited as cash, capped at £25 and immediately withdrawable. Any winnings from Bonus Spins will be added as Bonus Funds and capped at £100. There are wagering requirements for players to turn these Bonus Funds into Cash Funds. This is 10 times the value of the Bonus Funds. Only bonus funds count towards wagering contribution. Affordability checks apply.| Terms & conditions apply.

21 Casino Details

Website

https://www.21casino.com/gb

Launched

2015

Licenses

United Kingdom Gambling Commission under account number 52894 for customers in Great Britain, and the Malta Gaming Authority under licence number MGA/B2C/370/2017 (issued 01/08/2018) for all other customers.

VIP program

21 Casino Payment

Payment options
Bank Transfer Maestro Mastercard Debit Neosurf Neteller PayPal PaySafeCard Skrill Visa Debit

Minimum withdrawal

£20

Minimum deposit

£10

21 Casino Customer Service

Telephone support

Email support

[email protected]

Live chat support

Live chat with dealer

How CasinoHawks Reviews 21 Casino

21 Casino was established in 2015 and has since become one of the UK’s top online casinos. The game selection impresses with its variety, including loads of slots, table games, and live games to pick from. 

This licensed and regulated online casino also provides a valuable rewards program so everyone can enjoy a steady income of bonuses. To understand how we evaluate casinos, be sure to check out our How We Rate Casinos framework!

  1. We reviewed 21 Casino’s licensing, safety and trustworthiness
  2. We analysed bonus terms and promotions in 21 Casino
  3. We checked how smooth and reliable payment methods are in 21 Casino
  4. We analysed 21 Casino’s game selection & usability
  5. What do you do if you encounter issues while playing at 21 Casino?
  6. We judge the popularity of the 21 Casino & check user testimonials

21 Casino licensing, safety and trustworthiness

As this casino operates in the UK, it holds a license under the UKGC account number 52894. Alongside being fully regulated and licensed, the site also secures all transactions with advanced SSL encryption to ensure your personal and financial data is safe. Thanks to the games being supplied by reputable providers and subjected to independent testing to support fairness. However, it’s important to remember that no system is entirely without risk. 

AGE RISK WARNING

Under the Gambling Act 2005, the UK Gambling Commission requires all players to be 18 or older. Gambling operators are legally obligated to verify a player’s age and must refuse service to anyone under the age of 18.

Responsible gambling in 21 Casino

This casino site is fully committed to ensuring players remain in control of their gaming. We noticed a good range of responsible gambling tools, such as deposit limits, time-outs and even account closure.

ADDICTION RISK

ADDICTION RISK WARNING
Gambling should be done for entertainment purposes only, but for some, this can lead to harm. Always check in with how gambling makes you feel and keep an eye out for common warning signs:
-Feeling anxious when you cannot gamble

-Chasing your losses

-Using gambling as a means of escape
If you are struggling, then we urge you to seek support immediately. In the UK, many organisations can offer you free help:
GambleAware 0808 8020 133

GamCare

NHS Gambling Services

GAMSTOP offers a free self-exclusion service 

My rating of 21 Casino’s trust & safety

Unfortunately, not all UK casinos are built the same, and there are some unscrupulous sites out there. Ready to see how this one fared?

What I checkedScoreWhy this score?
Licences5/5Clean UKGC license held by the operator since 2018.
Brand credibility & ownership trust4/5Reputable operator with a strong portfolio of popular UK casino brands, but the site has yet to reach the 5-year mark.
Security measures & data protection5/5SSL and TLS v1.2 encryption, GDPR compliant and a separate account for players’ funds.
Responsible gambling tools10/10Solid support, plenty of tools, activity reports and trained customer support agents.

This casino puts safety as the main priority!

Overall, the tools and security here are top-notch

Bonus terms and promos – grab a bonus at 21 Casino

Let’s admit it – we all enjoy a good casino bonus! Let’s jump into what’s in store at 21 Casino!

BONUS RISK WARNING

You may claim the no deposit free spins by signing up using the link at the top of this review. You will receive 10 free spins on Book of Dead. Any winnings will be subject to a 10x wagering requirement within 30 days, and there is a maximum win limit of £50.

70 free spins on Book of Dead can then be claimed with a first minimum deposit of £15. The free spins will expire within 10 days, and winnings will need to be wagered 10x within 30 days before a withdrawal will be possible.

The maximum amount you are permitted to bet with whilst using bonus funds is £5.

Please note that you may lose money whilst playing with the free spins. Full terms and conditions apply; please check these on the 21 Casino site before claiming.

21 Casino welcome bonus

New players in the UK can claim 10 no deposit free spins on Book of Dead upon signing up at 21 Casino. Winnings from these are capped at £50, and a 10x wagering requirement applies, which must be completed within 30 days.

A further welcome bonus of 70 free spins is then available on Book of Dead. You will need to make a minimum deposit of £15 to claim these, and a 10x wagering requirement will apply to any winnings. Wagering must be completed within 30 days.

Full terms and conditions apply; please check these on the 21 Casino site before claiming.

21 Casino’s most popular offer

This would have to be the best free spins new player bonus, as the site was pretty blank when it came to anything else.

21 Casino promotions and tournaments

The downside to 21 Casino’s promotions page is that the bonus cupboard looks rather empty. As for tournaments, the platform hosts the popular ‘Drops & Wins’ network contests. Playing specific games could get you a place on the leaderboard and a cash prize.

Player support also informed me that offers are sent out to players via SMS and email. If you’d like to receive these, be sure to accept marketing when you sign up.

My rating of 21 Casino’s bonus terms & promotions

So then, how do the bonus bits and promos stack up on the scorecard? Here’s the detailed breakdown. 

What I checkedScoreWhy this score?
Bonus terms and conditions4/5Clear and easy to locate, generally following industry standards. There are some max win limits on certain free spins deals, but I don’t feel they’re unfair.
Wagering requirements4/510x wagering requirements are in line with the latest UKGC requirements.
Ongoing promotions1/521 Casino hasn’t much else to offer players after the welcome deal.

I’d love to see more offers at 21 Casino

With such a dry selection of promos, there was little to evaluate. 21 Casino was missing promotions such as no-deposit bonuses, cashback offers, and free spins for existing players

Payment methods & account fairness in 21 Casino

You need to check out the casino’s payment methods if you are going to play casino games using real money. Check the table below to learn which payment options are available at this online casino.

Payment MethodMin DepositMax WithdrawalAverage Deposit TimeAverage Pending Withdrawal Time
Visa Debit£10InstantUp to 24hrs
Mastercard Debit£10InstantUp to 24hrs
Maestro£10InstantUp to 24hrs
Neteller£10InstantUp to 24hrs
Skrill£10InstantUp to 24hrs
PaySafeCard£10InstantN/A
Neosurf£10InstantN/A
PayPal£10InstantUp to 24hrs
Bank transfer£10InstantUp to 24hrs

FINANCIAL RISK WARNING 

When gambling, it’s important to remember that there is no guaranteed win. Both your time and money are valuable, so always keep track of how much you’re using. To keep it fun and safe, always only gamble with money you can comfortably afford to lose and set yourself strict limits

Step-by-step guide on how to withdraw from 21 Casino

Submitting withdrawal requests is a straightforward process that you can easily access. Simply open your account page, and you’ll quickly find the Withdraw option. Here are the steps to take when you want to withdraw your funds.

  1. Click the person icon at the top of the page to open your account page.
  2. Select the Withdraw option under the Withdrawals menu.
  3. Pick your withdrawal method and enter an amount of £10 or more.

Other important information to know when withdrawing

The minimum withdrawal amount is £20, and all requests are held for at least 24 hours by the site before processing.

Documents and information you need to share with 21 Casino to open an account

The sign-up button is visible on the homepage in the top right corner. Creating an account is also a breeze since the registration form can be completed in just under 2 minutes. Once you create your account and you’ve passed the standard name and address info, you’ll be asked to upload documents. This step will require you to provide a form of ID and proof of address. Here are the verification documents you can forward: 

  • ID – government-issued photo ID that states your place of birth. 
  • Proof of address – utility bill, letter, or statement issued within the last 3 months that shows your name, address, issue date, and company name or logo. 

For added security, the site will email you an activation link once you finish the process.

My rating of 21 Casino’s payments & account fairness

Smooth and secure casino transactions with minimum hassle are what we all want. I did notice that this casino applies inactivity fees after 30 days of inactivity. Be sure to read the terms and conditions for the full details. That said, check out what was found when I lifted the lid on the payment processes at 21 Casino. 

What I checkedScoreWhy this score?
Minimum withdrawal and deposit3/5£10 for a deposit is fair, but the £20 minimum withdrawal amount is a tad high.
Accepted payment methods3/5A decent mix of standard UK options, but we’d love to see Google and Apple Pay in the mix.
Account rules and player rights1/5Inactivity fees after 30 days are a bit stingy, though the rest of the rules are fair.
Withdrawal speed and processing times3/5KYC is required before withdrawing, and the process times are up to 24 hours, which is in line with UKGC regs.

21 Casino doesn’t sit alongside other fast payout casinos, and also watch out for inactivity fees

The payment mix could be improved by adding options such as Google and Apple Pay. Additionally, the inactivity fees after 30 days are surprising and should be made more prominent

21 Casino’s games library & usability

This is where the platform shines, and with 5,000+ games, there’s something to suit most player preferences. 

CASINO GAMES WARNING

You should always remember that casino games are all a matter of chance. While the thought of winning can be exciting, it’s crucial to understand that the casino always has a built-in mathematical advantage, which means that most players will ultimately lose.

To ensure fairness, licensed games undergo rigorous testing to guarantee fair play and random outcomes. Make sure you fully understand the game rules before you start, as these, along with the RTP (Return to Player) rate, can differ from one game to another. Also, be aware that different games may not count equally toward wagering requirements if you’re using a bonus.

Ultimately, gambling should be seen as entertainment, not a way to earn money. To minimise risks and ensure a secure experience, always play at casino sites licensed by the UK Gambling Commission (UKGC). Require support? Visit GamCare.

Exclusive games and branded tables

You won’t find any exclusives here, though you will find over 5000 titles from world-leading game providers. 

Recommended slots you can play at 21 Casino

Players can find many well-known slot games, such as Book of Dead and Big Bass Bonanza, alongside various Megaways titles, which are commonly featured on the best online slot sites.

Live dealer tables available in 21 Casino

Live casino games come in various versions of Blackjack, Roulette, Sic Bo, and Craps, all in a dedicated area. If poker sites are your thing, then good news, as 21 Casino has a broad range of variants available.

Game Shows you can play at 21 Casino

There are some iconic live game shows such as Deal or No Deal Live, Crazy Time, and Monopoly Live.

More games you can play at 21 Casino 

Alongside slots and live casino games, 21 Casino has a library of Slingo games, jackpots, RNG tables and instant wins for players to explore. 

Popular game providers at 21 Casino

21 Casino features a well-known selection of software providers. Slots are provided by various studios, including famous companies like NetEnt and Play’n GO.

When it comes to Live casino games, the leading live game supplier, Evolution, is behind a number of the Live casino games on the site. You can also play titles from Pragmatic Play.

Mobile experience at 21 Casino

Players who prefer to use their smartphones for their slice of mobile casino action can rest easy. There is a dedicated Casino app, which you can download directly from the site. It’s suitable for all devices and screen sizes. 21 Casino has an HTML mobile site that’s been optimised for smartphones and tablets. This version is fully optimised for smartphones and tablets.

My rating of 21 Casino’s games library & usability

Right then, let’s dive into the heart of the casino, the games library! I’ve checked the site navigation and whether you can spin and win on the go.

What I checkedScoreWhy this score?
Games library and navigation10/10Useful filters and niche genres, including bingo, Slingo, crash and plinko. 
Software providers and game integrity5/580+ developers with all the popular names. Uses eCOGRA fair game testing too.
Site navigation & design2.5/2.5Smooth flow, attractive traditional theme and uncluttered layout.
Mobile experience2.5/2.5The app worked well for me and there’s also great optimisation for mobile.

The vast selection of game types is one of the site’s best features

Whether you prefer Megaways slots or high-quality live games, 21 Casino’s game selection caters to many different preferences

21 Casino’s customer support

The customer support team is friendly and quick to respond via live chat, which is available 24/7. You can also get in touch via email, although the site has no phone number. 

Contact:Average Answer Time
email[email protected]24hrs 
live chatAvailable on site 24/7. 2-3 minutes
Facebook facebook.com/TwentyOneCasinoNo recent posts / not used for customer support. 

Languages supported: English.

Help Centre: Easy to reach and offers a plethora of in-depth FAQs covering several topics.

Other resources they offer: You’ll find a handful of articles and guides for things like bonuses and news. 21 Casino also has coverage on Facebook, X and Instagram.

My rating of 21 Casino’s customer support

We all know that good support is crucial, but it can sometimes be an overlooked aspect of online gambling. 

What I checkedScoreWhy this score?
Opening an account2/2Easy and quick with standard KYC checks that take up to 24 hours.
Availability & response time2/2We got instant replies on live chat, and email responses were within an hour.
Contact options2/224/7 live chat and email service.
Clear contact options2/2The contact options are visible on every page, making it easy to contact support. 
Help centre & self-service options2/2The casino has implemented a recent help portal with comprehensive FAQ’s.

21 Casino offers a superb setup for new and regular players looking for help

21 Casino did not disappoint here, and the agents were friendly and quick to respond.

Popularity & user testimonials

This site enjoys some popularity with UK players, though reviews do point out slow withdrawal and KYC processes. There are a few niggles regarding the lack of bonuses, but the platform is upfront about this, at least. Overall, 21 Casino has a seal of approval within the industry for its fairness and security measures; I rate it 8/10 here.

Overall, 21 Casino does a good job for UK players, but the lack of bonuses may put some of you off

This casino has implemented strong safety measures, which make it a reassuring choice for many players. The game collection is outstanding, and customer support performed well under our testing. But like every other platform, there are flaws to consider.

Top games, trusted names, and a bit of a quiet promo corner

21 Casino offers a vast selection of games from many trusted suppliers. No matter your preferences, there’s a game type here for everyone. While promotions are absent from the site, players can still expect to receive them directly in their emails.

All in all, 21 Casino is a convenient and safe casino site that aims to please different UK players with various game tastes.

Other casinos to play at if you like 21 Casino

Did you enjoy this casino? Check out more of our top casino reviews

Frequently asked questions

Yes, 21 Casino is licensed by the UK Gambling Commission.
No, 21 Casino does not offer a Loyalty Programme at this point.
You can contact Support via the Live chat option at the bottom of the page or send an email.
New players can get 10 no deposit spins then a deposit of at least £15 will grant you 70 free spins on Book of Dead. Full terms and conditions apply.
£20.
As part of UKGC regulations, you will be required to verify your account.

Author

Nicola Wrebel
Nicola Wrebel Senior UK Casino & Bonus Expert

As a trusted expert writer with over nine years in the online gambling industry, Nicola produces honest and engaging casino reviews and content for UK players. She has experience working with operators and in editorial roles.

Go to 21 Casino Go to 21 Casino
Cash spins 30 Wagering 0x
Bonus Spins 70 Wagering 10x
To the casino
18+ | Play Responsibly | Gambleaware.org | 18+. New players only. Welcome Offer is 30 Cash Spins on Book of Dead available with a min. £15 first deposit + 70 Book of Dead Bonus Spins available with a min. £10 second deposit. Cash + Bonus Spins must be used within 10 days. Cash Spin winnings credited as cash, capped at £25 and immediately withdrawable. Any winnings from Bonus Spins will be added as Bonus Funds and capped at £100. There are wagering requirements for players to turn these Bonus Funds into Cash Funds. This is 10 times the value of the Bonus Funds. Only bonus funds count towards wagering contribution. Affordability checks apply. | Terms & conditions apply.

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