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21 Casino

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Only slot sites that pass our strict review process make it onto our website. For more information, read our guide on how we rate and review slot sites.

21 Casino has a sharp and sophisticated design that creates an engaging betting environment. The platform may seem like another online casino that is themed on a luxurious land-based casino, but 21 Casino is a cut above the rest. The platform is stocked with gaming content, dazzling promos, and lots of reward potential.

Visit 21 Casino

Rated 4.3 out of 5

Paul Clare
Reviewed by Paul Clare Last updated:

Quick Facts

Withdrawal speed

3 days / e-wallets instant

No. of games


Deposit methods

PayPal, Skrill, Paysafecard & 4 others

Customer support

Email, 24/7 Live chat


Gambling Commission, MGA


Demo games, regular promotions, wide range of games

21 Casino Bonuses

This is 21 Casino's best welcome bonus currently available to UK players. All bonuses added to our website have been vetted by Slot Gods and offer good value with fair T&Cs:

  • 21 Casino Logo

    121% bonus up to £100

    Get bonus

21 Casino's Best Slots

Here's a glimpse at 21 Casino's best online slots. They've all been reviewed and rated by us based on a number of key factors. Click through to read our full review of each slot game, or tap on the 'Play now' button to head over there now and get started:

21 Casino Review

  • Pros

    • 1,200+ top-rated casino games – mainly slots spanning all themes and genres
    • ‘Element of skill’ games include blackjack, roulette, and poker options
    • Free-to-use game demo option
    • Good welcome package and seasonal promotions
  • Cons

    • Some may feel 1,200 games is limited

21 Casino Overview

21 Casino is a gaming platform that oozes class and sophistication. The casino has a classic land-based theme, with luxury and prestige at the core of the content offering. The casino is backed by a team of industry experts that aim to bring a true-to-life betting experience from the moment you arrive. Its wide and diverse library of games will meet the demands of casino enthusiasts, with thousands of the best online casino games to pick from. There are heaps of slots, virtual and live tables, and plenty more. You can expect plenty of quality too, with highly regarded studios like Microgaming, NetEnt, and Red Tiger on the roster.

The site has been live since 2015, with the team behind the brand always upholding a high standard, ensuring the latest industry innovations are always present. What’s more, the operator welcomes new players to the occasion with a super generous welcome bonus that gets you more than double back on your deposit.

The slick and stylish casino has been fully optimised for mobile play, so you can enjoy a sublime gaming experience from your Android or iOS device.

21 Casino holds multiple gaming licenses from reputable regulators with an iron-clad foundation that has been secured with SSL encryption technology. Additionally, the casino has around the clock customer support should any hiccups occur.

21 Casino's home page 21 Casino's home page

21 Casino's Games

21 Casino scores 8/10 for Games

The 21 Casino gaming catalogue is made up of over 1,200 top-rated casino games and counting. The bulk of the library is slot games with a wide collection that spans all themes and genres. You can ramp up the reels in the crypts of ancient Egypt in “Book of Dead”, fish out big prizes in “Big Bass Bonanza”, and even play for progressive jackpots worth millions in “Mega Fortune”, and the record-breaking “Mega Moolah” slots.

21 Casino's online slots 21 Casino's online slots

High RTP Slots at 21 Casino

For those looking for slots that pay out the most, here's our pick of 21 Casino's highest RTP slots. These are the best high RTP slots available to play at 21 Casino for UK players, verified by Slot Gods:

Apart from an incredible range of slots, 21 casino features a category for other games where you will find a mix of Slingo, scratch cards, and other less familiar casino games.

For those who prefer a game with an element of skill, there’s a diverse range of RNG tables, with lots of blackjack, roulette, and poker options. These virtual tables give you instant betting action with versatile betting limits and simple gaming interfaces. You can experience the tables in a more humanised environment by checking out the live dealer lobby. Here you will find some of the most thrilling casino games played in real life from a professional casino studio, streamed straight to your screen in HD quality. If you’re a skilled blackjack player you can hit up “Power Blackjack”, or if you want some money wheel excitement, you can choose the “Crazy Time” game show title.

21 Casino's live game selection 21 Casino's live game selection

21 Casino does a great job of organising the gaming content, with intuitive search categories to pick from. Moreover, the casino allows players to try out the games for free using the demo mode option, this is a great way to see if the game has the theme, features, and gameplay to suit your needs.

21 Casino's further game catalogue 21 Casino's further game catalogue

Promotions & Rewards

  • VIP Rewards

    As you would expect from a casino that has the VIP look, there is of course a rewards program that the most loyal players can take advantage of. Every time you wager on the slots and tables you will pick up points and move through several levels, unlocking some extra perks. You will earn one point for every £10 wagered and can even exchange the points for cash.

21 Casino scores 6/10 for Promotions

21 Casino makes sure all new players are treated to a taste of the VIP lifestyle with a generous welcome bonus that gets you off to a winning start. The welcome package promises more than double your deposit, so you can enjoy the vast array of games with more bang for your buck. In addition to the welcome offer, you will come across seasonal promotions and tournaments. However, the bulk of the bonus action will be sent out via email, so it’s worth having your marketing notifications switched on.

Platform & Software

There’s no shortage of quality content at 21 Casino. The gaming operator collaborates with most of the industry’s most sought-after suppliers. You will find full gaming catalogues from fan favourites like Push Gaming, Green Jade, NoLimit City, Play N Go, Push Gaming and Relax Gaming to name a few. There are over 60 gaming studios to pick from, with a dedicated provider search filter for convenience.

The live dealer lobby has been supplied by Evolution Gaming, the industry-leading software developer for live casino games.

Play at 21 casino on your mobile device

For mobile players, you can enjoy the full 21 Casino gaming experience through your iOS or Android device. There’s no need to download any software, you can load up the casino on your browser and enjoy an immersive mobile casino. The attractive design translates over to mobile with sublime usability and easy touch controls. The games and promotions are placed at your fingertips so you can touch and swipe your way to your preferences. The entire gaming portfolio is available to play through mobile thanks to mobile-friendly HTML5 technology. The mobile gaming performance is smooth and free of any lag, so you can enjoy the slots and tables without compromise.


21 Casino scores 9/10 for Banking

You can safely and securely get your real money balanced topped up through a choice of trusted payment options, including your standard debit cards, and a plethora of eWallets, including PayPal, Neteller, and Skrill. You can rest assured that all deposits and withdrawals will transact without a hitch thanks to the robust SSL encryption in place.

Deposit methods include: Visa Delta, Visa Electron, Visa, Mastercard, Bank Transfer, Trustly, PayPal, Paysafecard, Skrill, Neteller.

Withdrawal methods include: Visa Delta, Visa Electron, Visa, Mastercard, Bank Transfer, Trustly, PayPal, Skrill, Neteller.

All deposits are processed instantly other than bank transfers. Withdrawal times vary depending on the original deposit method. 

You can be waiting up to three working days if you use your debit card, while the likes of PayPal and Neteller offer instant cashouts, so you don’t have to wait around for your winnings. 

Due to the strict regulation in place, all players will need to verify their accounts before any withdrawals can be processed. You can verify your account by sending in some personal documents to prove that you are who you say you are.

  • PayPal Logo
  • Skrill Logo
  • Paysafecard Logo
  • Neteller Logo
  • Visa Logo
  • Mastercard Logo
  • Trustly Logo


21 Casino is managed by White Hat Gaming Limited, a company registered in Malta under company reference C73232.

White Hat Gaming Limited is licensed and regulated in Great Britain by the Gambling Commission under account number 52894.

For non-UK players, White Hat Gaming Limited is licensed by the Malta Gaming Authority under licence number MGA/B2C/370/2017.

  • UK Gambling Commission Logo
  • Malta Gaming Authority Logo

Help & Support

24/7 chat support

21 Casino scores 9/10 for Customer Support

21 Casino is committed to providing a stress-free gaming experience and therefore has a friendly and knowledgeable support team on hand around the clock. 

Should you find yourself in a spot of bother, you can reach out to the support agents through live chat or email at [email protected]

The email response times are very respectable, with replies usually landing in your inbox the same day.

Our Verdict

4.3 stars from the Slots Gods team is a pretty resounding thumbs-up. And it would be even higher if they upped the ante a bit on promotions.

21 Casino, live since 2015, is a slick, sharp site to visit and play at – an ‘engaging betting environment’. It has a classic land-based theme which aims to give off an air of sophistication and prestige. And it works.

The site includes a varied and eclectic mix of games that should satisfy even the most discerning of enthusiasts. Slots, virtual and live tables and more from leading developers including (but not limited to) the likes of Microgaming, NetEnt, and Red Tiger are all part of the attractive 21 Casino package. The team behind the brand maintains a high standard – keeping a watchful eye on the latest industry innovations and trends and adopting them when there’s a good fit.

With 1,200 games to choose from 21 Casino is at the smaller end of slots site collections, but put in context that’s still a different game to play every day for around 3-and-a-half years.

Yes, a definite thumbs-up. 

Overall score: 4.3/5

Paul Clare
Reviewed by Paul Clare Last updated:

Paul spent plenty of time in arcades up and down the UK discovering all of the best fruit machines and watching them grow into the incredible online slots we see today. He still loves the basic format but also has a soft spot for games with big bonus rounds that progress as you play. Immortal Romance is one of his favourite slots of all time.

Browse 21 Casino's Slots

Here are all of 21 Casino's slot games that have made it onto our website. We only review the best and most popular online slots that we think are worthwhile playing. Click through to read our full review, or tap the 'Play now' button to get started:


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