21 Casino Review (2026)
Real Money Testing and Expert Analysis

A site that’s great for slots, jackpots and live dealer coverage, but it offers very few promotions.

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Our Review Process

This review was compiled using the All Slot Sites Standard methodology. It is based on several weeks of real-money testing, including deposits, withdrawals, bonus claims, support interactions and gameplay across more than 20 slots and live casino games. Data from real tests is used to calculate the category and overall scores published in the scorecard below.

Read how we test and score casinos.

The All Slot Sites Verdict

An elegant website design and strong game catalogue from one of White Hat Gaming’s earliest brands (2015). It will suit players who don’t like to bother too much with bonuses. There are none advertised on the site, except for the welcome offer, and there is no ongoing loyalty program. We liked the cashier experience with plenty of eWallet and open banking options as well as £10 minimums.

21 Casino Scorecard

Overall Score
7.5
Good

Safety and Trust

7.7

Bonuses

6.8

Banking

7.5

Games and Software

7.5

Website and App

7.6

Customer Support

7.8

Pros

  • High quality slots from specialist providers like Push, Hacksaw and Nolimit City
  • £10 minimum deposit and withdrawal
  • Good gameshow selection from Pragmatic Play Live and Evolution Gaming
  • PayPal, Apple Pay and Trustly all accepted

Cons

  • Low average RTP rates in our test sample – 92%
  • Thin promotions program and no loyalty scheme

21 Casino Key Facts

UK License 52894
Payment Options Visa, Mastercard, Maestro, Paypal, Neteller, Trustly, Neosurf, Paysafe Card, Instant Bank Transfer, Revolut
Slots 4,000+
Min Deposit £10
Game Providers 119
Live Casino Evolution Gaming, Pragmatic Play Live, On Air
Mobile App Not Available

Safety and Trust

7.7

Safety and Trust Key Facts

  • Licences: UK Gambling Commission, Malta Gaming Authority
  • Operator History: £1.3m UKGC fine in 2020 for AML and safer gambling failings
  • RG Tools: Deposit limits, curfews, payday time-outs, time-outs, self-exclusion
  • Balance Protection*: Medium protection level

*Based on UK Gambling Commission definitions – read more here.

What Is 21Casino and Is It Safe?

21Casino is an online casino run by White Hat Gaming Ltd, a leading white label casino operator in the UK market. The site features a big slots catalogue, live dealer tables and gameshows, virtual tables and instant win games. It’s available via a website, but there is no app.

White Hat Gaming are licensed by the UK Gambling Commission on account number 52894.

All their sites are required to include safety and fair play features like responsible gambling tools, affordability checks and independently tested games.  

We note that White Hat was fined £1.3 million by the UK Gambling Commission in 2020 for failing to spot and intervene with problem gamblers. There were also weaknesses in their anti-money laundering procedures. To retain its license, the operator was required to tighten up its business practices significantly. It has not received any sanctions since.   

We have taken this into account when scoring 21Casino for Safety and Trust.

What Do Players Say About 21 Casino?

21 Casino is a small brand so it doesn’t have significantly strong positive of negative reputational signals online. It has low scores on Trustpilot (1.4/5 from 34 reviews) and AskGamblers (5.1/10 from 65 reviews) but the review numbers are too low to draw any reliable conclusions. There have been no new player reviews on AskGamblers in the last 3 years.

Responsible Gambling ToolsRG tools include net and gross deposit limits, time outs, self-exclusion from the White Hat Gaming network, session time reminders and curfews. There is even a useful payday time-out feature to set weekly, bi-weekly, four-weekly or monthly. We successfully tested the financial limit tools, and they were easy to configure.
GAMSTOPA link to GAMSTOP national self-exclusion scheme is available from every page on the website. It allows players to exclude from all UK-licensed gambling brands.
Complaints ProcessThe complaints procedure is published in the terms and conditions with timelines and escalation points. eCOGRA has been nominated as an alternative dispute resolution provider.
Player Balance ProtectionPlayer balances are protected. In case of operator insolvency they are held in a seperate bank account to the main business funds. This level of protection is defined as ‘medium’ by the Gambling Commission.
Site SecurityThe website has a valid security certificate and runs on a secure TLS connection.
This information was collected from the 21 Casino website in September 2026
A session time reminder at 21 Casino
Safer Gambling Tools - a session time reminder - we set ours to appear after 1 hour of play
Setting financial limits at 21 Casino
Safer Gambling Tools - we set our daily net deposit limit to £500

Bonuses and Promotions

6.8

Bonuses and Promotions Key Facts

  • Welcome Offer: 70 free spins on Book of Dead
  • Minimum Deposit: £15
  • Offer Total Value: £7
  • Winnings / WR: Bonus Funds (10x)
  • Ongoing Promotions: Ad hoc match bonuses and tournaments, no loyalty program

What Is The Sign-Up Offer at 21 Casino?

Players get 70 free spins on Book of Dead for a £15 deposit. With spins worth 10p each that’s £7 in free spins. That's a nice reward for starting out at 21 Casino. However, compared to the offers available at other sites it is at the lower end of the value scale. Particularly when you consider that the winnings are paid in bonus funds with a 10x wagering requirement and £100 win cap rather than cash.

That means, if you win £5 with your free spins, it will be held in a separate bonus balance. Only when your cash balance reaches zero, will you start wagering the winnings. You'll need to wager £50 (10x £5) before the bonus balance convert to cash and becomes withdrawable.

If claiming a good value sign-up deal is your main motivation for joining a new site, there are better alternatives than this one. We’ve listed some comparable offers below, including two from the same operator.

21Casino Welcome Offer Compared With Competing Casinos

Each of the alternative offers in the table below has a lower deposit trigger of £10 and awards significantly better value than 21 Casino.

SiteMin DepositOfferSpin ValueTotal Bonus Value *Value vs Deposit **Winnings Type (WR)Win Limit
21 Casino£1570 Spins10p£747%Bonus (10x)£100
Kwiff£10200 Spins10p£20200%Cash £250
MrQ£10100 Spins10p£10100%CashNo Limit
PlayOJO£1080 Spins10p£880%CashNo Limit
Pub Casino£1050 Spins20p£10100%CashNo Limit
Quickbet£10100 Spins10p£10100%CashNo Limit
* Total Bonus Value = Spin value multiplied by total spins or match bonus amount
** Value:Deposit = value of the bonus as a percentage of the deposit when a bonus has been claimed with the minimum deposit

What Are Regular Promotions Like?

The promotions program is thin and what is available is poorly communicated. On the evidence from our testing, 21Casino is not a good fit for players who like to know what rewards they can expect for a regular spend.

There is no loyalty program, weekly free spins or daily bonus wheel advertised on the site.  We went to a support agent who confirmed that 21Casino does not have a loyalty program and that currently they couldn’t provide us with any information about upcoming rewards.

However, we did find some hidden promotional activity. On one occasion when we made a deposit we were offered a choice of a 100% match up to £100 or 50 bonus spins on Book of Dead. Neither deal had been advertised on the site or sent to us on email or SMS. We also had to ask support which game the spins were for because it wasn’t clear in the offer area.

The terms were standard, with free spins winnings as bonus funds with a 10x wagering requirement, and the match bonus also having a 10x wagering requirement.

We took up the 100% match because it allowed us to play any slot game we liked. Opting-in was simple and we could see our bonus immediately displayed as a separate balance. Tracking wagering requirements was less easy. There is no progress bar in the game screen so we had to close it and return to the account page if we wanted to see how much more we needed to wager. That is not a major flaw, but some sites handle it better.

We played Bamboo Ways, Razor Shark and The Dog House whilst trying to meet the wagering requirements, but fell short.

Monitoring wagering progress at 21 Casino
Tracking our progress towards meeting the wagering requirements in our account
Playing Razor Shark at 21 Casino
Wagering on Razor Shark slot to meet our wagering requirements

Games and Software

7.5

Games and Software Key Facts

  • Game Providers: 119
  • Major Providers: Pragmatic Play, NetEnt, IGT, Big Time Gaming, Play’n GO, Microgaming
  • Progressive Jackpots: Mega Moolah, WowPot, Mega Jackpots, Jackpot King
  • Live Casino Providers: Evolution, Pragmatic Play Live, On Air
  • RTP Average*: 92.00%

* Based on our sample of 25 popular games.

Which Game Providers Feature At 21 Casino?

The list of providers is comprehensive. We counted 119 in total using the Providers filter in the main game menu. That is excellent coverage.

The strength here is not just all the big names – they can be found at most casinos – but the less well-known studios with great quality games too. For example, we enjoyed checking our favourite Fantasma Games’ slots, Hades River of Souls and Circle of Sylvan. Other small studios we like here include Gameburger (9 Pots of Gold) and Iron Dog (Feeding Fury).

Circle of Sylvan at 21 Casino
Playing Fantasma Gaming's Circle of Sylvan at 21 Casino

What Is The Slot List Like?

It’s big. Based on the provider count and comparison with other sites from this operator we estimate over 4,000 though it’s impossible to put an exact number on it. Unlike newer White Hat Gaming sites, 21Casino do not display the games total in each category.  

What we could see is that the library is very up to date. During testing on 9th September we saw games including Skywind’s Fury Festival, Relax Gaming’s Nugget Ridge and Pragmatic Play’s Ra vs Osiris appearing, all released on 3rd September, just a week earlier. This is a good sign, making 21Casino a good choice if you want fresh games to play.

ClassicsBook of Dead, Reactoonz, Break Da Bank Again, Gates of Olympus, Starburst
MegawaysPrimal Megaways, Hypernova Megaways, Twin Spin Megaways, Chilli Heat Megaways
Cluster PaysReactoonz 100, Wanted Dead or A Wild, Jammin Jars, Hand of Anubis, Zeus,
High VarianceTombstone Slaughter, Mental 2, Avalon Gold, Money Train 4, Wisdom of Athena
SeriesFishin' Frenzy, John Hunter, Tropicool, Sugar Rush, Fluffy Favourites, '1000' slots
Games observed on the 21 Casino website in September 2026

What Is The Game Menu Like To Use?

It’s OK, offering a bit more functionality than the basic menus options on some white label casinos.

There is a keyword search tool and 11 game categories including New, Providers, Drops and Wins and Jackpots. Under the main ‘Slots’ category there are also format filters for Megaways, Cluster Pays, Buy Feature, Mega Symbol (3x3) and Sticky Wild. The inclusion of a ‘Buy Feature’ filter here is a bit odd because feature buys are not allowed under UK regulation since 2019 so it will have been switched off in those slots.

Slots Menu at 21 Casino
The slots menu at 21 Casino with sub-categories

Rolling over each game logo (desktop only) brings up the game provider name, winlines, reels and a volatility rating of 1 to 5. These are all helpful hints when searching for a game you might like. We could also save a game to Favourites here, which made it easy to return to ones we enjoyed.

The opportunity to explore the list is rounded off with a Random Game feature that does exactly what you would expect. If you’re stuck for what to play it’s a novel option.

What Are RTP Rates Like?

They are at the lower end of the scale.

We sample RTP rates on the same 25 games for each site we review. At 21Casino the average across those games was 92%. That is the same as all other White Hat Gaming sites we’ve tested. However, it is lower than the average at Casumo (93.42%), MrQ (94.68%) and Midnite (94.56%).

Popular slots with low RTP rates at 21Casino include Starburst (92.05%), Mental 2 (92.02%), Book of Dead (91.25%) and Sweet Alchemy 2 (91.20%).

To record RTP rates we had to open each game and browse the rules pages. 21Casino does not publish this information on its website, app or game loading screen.

GameProviderRTP
Tombstone RIPNolimit City94.08%
Deadly 5Push Gaming92.39%
Le FishermanHacksaw Gaming92.34%
IteroHacksaw Gaming92.32%
Break BonesHacksaw Gaming92.31%
Le CowboyHacksaw Gaming92.30%
Hot PotatoThunderkick92.16%
The CryptNolimit City92.15%
Big BambooPush Gaming92.10%
Gates of OlympusPragmatic Play92.10%
Fire in the Hole 3Nolimit City92.08%
Dead or AliveNetEnt92.06%
Big Bass BonanzaPragmatic Play92.05%
Big Bass SplashPragmatic Play92.05%
StarburstNetEnt92.05%
Big Bass Day at the RacesPragmatic Play92.03%
Sugar RushPragmatic Play92.03%
The Dog HousePragmatic Play92.03%
Mental 2Nolimit City92.02%
Scroll of DeadPlay n Go91.28%
Book of DeadPlay n Go91.25%
GigantoonzPlay n Go91.25%
Honey Rush 100Play n Go91.20%
Sweet Alchemy 2Play n Go91.20%
Rome the Golden AgeNetEnt91.05%
RTP data captured from the live 21 Casino site on 8th September 2026

Are There Progressive Jackpots?

Yes, the selection is very good including several top tier jackpot networks.

The biggest prizes most often come from Games Global’s two famous networks, Mega Moolah and WowPot. On 9th September whilst playing Book of Atem WowPot at 21Casino the main jackpot stood at £2,403,990.  

Summary Of Progressive Jackpot Options at 21 Casino

Jackpot GroupProviderStarting JackpotExample Games
Mega MoolahGames Global£1,000,000Book of Mega Moolah
WowPotGames Global£1,000,000Book of Atem WowPot
Mega JackpotsIGT£500,000Cleopatra Mega Jackpots
King MillionsGames Global£1,000,00012 Masks of Fire Drums King Millions
Jackpot KingBlueprint Gaming£500,000The Goonies Jackpot King
Dream DropRelax Gaming£1,000,000Cluster Tumble Dream Drop
Games observed on the 21 Casino website on 9th September 2026

Presentation on these games could be better.

Unless we searched by keyword, it was not possible to list the main progressives separately to a full list of over 900 jackpots including fixed and locals. That means unless we had a specific game in mind, we had a lot of scrolling to do.

The game listings don’t incorporate a current jackpot value ticket either, which is unusual. Most sites do this to help in the decision-making process when choosing a game.

What About Live Dealer and Virtual Tables?

With live tables and gameshows from Evolution Gaming, Pragmatic Play and On Air, 21Casino offer good depth in this area. Bigger sites will have Playtech tables and a niche provider or two like Ezugi. But for a small white label, what we found was competitive.

These games pool players from hundreds of online casinos which means they have a lot of liquidity. There were 80,704 players in the Evolution Gaming lobby at 12.11pm on a Wednesday. That gives you some idea of the scale.

Summary of Live Casino Options at 21Casino

GameTables / Games AvailableStake OptionsHighlights
Blackjack41450p+Classic Blackjack, Speed Blackjack
Roulette3310p+Fireball Roulette, Monopoly Roulette
Baccarat / Sic Bo4620p+Speed Baccarat, Super Sic Bo
Poker610p+Caribbean Stud, Texas Hold'em
Gameshows4310p+Mega Ball, Dream Catcher
Game Data collected from the 21 Casino website on 3rd September 2026 and includes tables that are open for limited periods. Scheduling is subject to change.

Are There Any Other Games?

Yes. We found Slingos, pachinko, plinko, crash games, video poker, dice and hi los. There are 41 of these listed under ‘Other Games’ in the main menu. However, the real total is over 100. We know because we discovered further options by searching using the keyword tool.

It’s not ideal. It would be much easier if all the games were listed in one place, or given sub-categories like Crash Games, Slingos and Arcade. We also found that if we entered ‘Crash’ as a keyword, the casino returned games with ‘Cash’ in them as well, which made the search less effective.  

Despite these shortcomings, 21Casino has a strong offering of alternative gambling games.

Banking

7.5

Banking Key Facts

  • Major Payment Methods: Visa, Mastercard, PayPal, Apple Pay, Trustly, Neteller
  • Withdrawal Times in Testing: 7 hours 10 minutes
  • Minimum Deposit / Withdrawal: £10 / £10
  • Fees: None
  • Cashier Experience: Overall good, but poor user experience when one deposit failed

What Payment Methods Are Available?

This is one of the better cashiers, with low deposit and withdrawal thresholds of just £10, no fees and a wide choice of payment options. Debit card, PayPal, Apple Pay, Google Pay, Trustly are all available.

Summary of Banking Options at 21 Casino

Payment TypeMethodsMin DepositMin WithdrawalFee
Debit CardsVisa, Mastercard, Maestro£10£100%
E-WalletsPayPal, Neteller, Revolut£10£100%
Mobile WalletsApple Pay, Google Pay£10£100%
Bank Transfer / Open BankingTrustly, Instant Bank Transfer£10£100%
Prepaid CardsPaysafecard, Neosurf£10N/A0%

Making Deposits and Withdrawals

We made deposits with PayPal and Mastercard to test 21Casino. The payment pages are clear and there is an option to deposit without leaving the game screen which can be helpful.

Two deposits were processed instantly without issue.

However, when one deposit using Mastercard failed, the website journey was disconcerting. After we hit confirm, the screen went blank and then refreshed to the home page, where our balance still showed zero. Because the site gave no clear explanation of what had happened, we contacted support. They told us to take the issue up with our bank. Whilst it turned out that no funds were ever removed from our bank account, the poor on-site experience did make us a little uncomfortable.

Succesful deposit at 21 Casino
A succesful deposit at 21 Casino

We also made withdrawals to Mastercard and Paypal.

These were both processed within 5 hours. Requesting a withdrawal was easy. 21 Casino did not approve our payments instantly, but during the waiting period they were listed in a Pending Withdrawals area in the account for transparency.

Requesting a withdrawal at 21 Casino
Requesting a withdrawal to Mastercard at 21 Casino
Pending withdrawal at 21 Casino
Our withdrawal remained listed as 'Pending' until it was approved by 21 Casino

Website and App

7.6

What Is The Website Like?

It’s a cut above your average white label with a stylish mix of black, gold and white colors, and elegant fonts.

Navigation is straightforward and information pages are clearly labelled and easy to read. The page-loading times ranged from 2.2s to 5.2s in our tests which is acceptable, even if not consistently fast.  

We also noted that game lists loaded more quickly than at other White Hat sites we have tested. When using the keyword search tool, games populated almost instantly when we started typing, making for a good user experience.

PageAverage Load TimeSpeed Benchmarking *
Home Page3.9sAverage
Game Lobby5.2sSlow
Promotions Page2.2sFast
* Benchmarking: Fast: < 3s; Average: 3s to 5s; Slow: > 5s
Performance data captured for mobile usage using Page Insights on September 10th 2026

Does 21 Casino Have a Mobile App?

No, there is no app for iPhone or Android.

We did a lot of testing using an iPhone 17 with iOS 26. We browsed the site, played games and deposited on our mobile browser. We didn’t encounter any issues. Game load times were good and the website was responsive to our screen size.

21 Casino mobile website
21 Casino viewed on a mobile browser

Customer Support

7.8

Customer Support Key Facts

  • Contact Options: Live chat, email
  • Contact Hours: 24/7
  • Live Chat Response Time: 3 to 10 minutes in testing
  • Help Centre: Not easy to find but has good, short articles to answer most common questions

21Casino provide customer support on email and live chat. Both are open 24/7.

We tested the live chat service on five separate occasions. AI agents provided an initial response before handing over to real agents if they couldn’t resolve the issue.

Live chat at 21 Casino
AI agent handing over to a real agent in live chat

The quality of AI in this case was better than we have seen at other sites. They provided accurate responses to a query about our withdrawal marked as ‘still pending’ and a failed deposit which had not been confirmed by the cashier.

It was less effective for queries about promotional offers and terms and conditions, and we asked to speak to a real agent to follow up on the deposit issue. Altogether, we spoke to real agents four times with an average handover time of 6 mins 15 seconds and a longest wait of 10 minutes.

Those are reasonable response times, in the average range for casinos we have tested. The real agents were friendly and helpful too and did manage to resolve queries that the AI agents couldn’t.

21Casino has FAQs too, neatly categorised by topics like bonuses and verification. Navigating to it is a little tricky because it’s hidden behind the Live Chat link. Nevertheless, it’s got some good information that answers basic queries.