21 Casino Review – Top UK Operator

21 Casino Overview

21 Casino online was launched in 2015 and is fully licensed by the UK Gambling Commission under licence number 52894. There are over 3,000 games in the lobby powered by big providers such as Pragmatic Play, Betsoft, Yggdrasil, and more. Sign up to claim a generous welcome bonus consisting of 70 free spins for Book of Dead.

In our 21 Casino review, we found the platform’s advantages and disadvantages, though the positives far outweigh the negatives. We were impressed with the games lobby featuring over 3,000 titles, the jackpot selection, payment methods, and the customer support.

On the other hand, we couldn’t find many live poker games or ongoing promotions for returning customers. Although not major drawbacks, changing these two aspects will improve the site’s overall rating as one of the best online casinos in the UK.

21 Casino UK is owned and operated by White Hat Gaming Ltd, a company regulated by the UK Gambling Commission with licence number 52894. It is one of the top online casinos available in the UK. Below are some important details about the site.

White Hat Gaming has won a few industry awards, including White Label Supplier of the Year at the SBC Awards in 2024. 21 Casino is known to be a trusted UK online casino. You can check out the top 20 casino sites to see how it compares to the best.

21 Casino is a safe and reliable platform for UK players. The UK Gambling Commission licenses the site under licence number 52894 and requires it to follow strict rules on fairness, player protection, and responsible gambling. It also uses 128-bit SSL encryption to protect all personal and financial data and offers responsible gambling tools, such as deposit limits and self-exclusion, to help players stay in control.

• UK Gambling Commission
• BeGambleAware
• Gambling Therapy
• GamCare
• GAMSTOP

When reviewing the 21 Casino slots catalogue, we found every game we could think of. The lobby offers over 1,500 slots from leading software providers, including NetEnt and Pragmatic Play. Games can also be filtered by different features such as Sticky Wilds, Megaways, Cluster Pays, etc.

The platform also offers around 150 jackpot slots, including Mega Moolah, King Kong Cash, Go Bananas, and Jackpot King Fishin’ Frenzy.

We were a bit disappointed to find that 21 Casino offers only around 55 live dealer games. This number is relatively small compared to competitors that often have well over 100 live games. The games are powered by Evolution and Pragmatic Play Live, featuring popular titles such as Lightning Roulette, Power Blackjack, and Monopoly Live.

UK players can deposit at 21 Casino using secure payment methods like PayPal, Skrill, Neteller, Visa, Mastercard, Instant Bank Transfer, PaysafeCard, and Apple Pay. The platform is known as one of the top online casinos accepting PayPal. The minimum deposit is £10, deposits are processed instantly, and no fees are charged. We found PayPal to be the most popular method used due to its speed and security.

21 Casino is partnered with 100+ software providers. This is made up of industry leaders such as NetEnt, Pragmatic Play, and Play’n GO, as well as smaller studios such as Switch Studios and Wishbone Games. These developers give you top-quality games with crisp animations on whatever device you are playing on.

• 4theplayer
• AGS
• Advant Play
• Area Vegas
• Armadillo Studios
• Aurum Signature Studios
• Authentic Gaming
• Barcrest
• Big Time Gaming
• Blue Guru Games
• Blue Ring Studios
• Buck Stakes Entertainment
• Chance Interactive
• Core Gaming
• Crazy Tooth Studio
• Design Works Gaming
• ELK Studios
• Electric Elephant
• Endemol Shine Gaming
• Evolution
• Eyecon
• Fantasma Games
• Felt Gaming
• Fortune Factory Studios
• Four Leaf Gaming
• Foxium
• GONG Gaming Technologies
• Gacha Studios
• Gameburger Studios
• Gamevy
• Gold Coin Studios
• Golden Rock Studios
• Greentube
• Hacksaw Gaming
• Half Pixel Studio
• Hammertime
• High Limit Studio
• IGT
• Infinity Dragon Studios
• InnoGames
• Inspired Gaming
• Iron Dog Studio
• Just For The Win
• Kalamba Games
• Leander Games
• Lightning Box
• Live 5
• Lucksome
• Max Win Gaming
• Merkur
• Microgaming
• NYX Gaming Group
• Nailed It! Games
• Neko Games
• Neon Valley Studios
• NetEnt
• NetGaming
• NoLimit City
• Northern Lights Gaming
• Old Skool Studios
• On Air
• Oros Gaming
• PG Soft
• PearFiction Studios
• Play'n GO
• Playzido
• Pragmatic Play
• Print Studios
• Prospect Gaming
• Pulse 8 Studios
• Push Gaming
• RAW iGaming
• Rabcat
• Realistic Games
• Red Rake Gaming
• Red7
• Reel Time Gaming
• Relax Gaming
• Revolver Gaming
• S Gaming
• Scientific Games
• Shuffle Master
• Side City Studios
• Silverback Gaming
• Skywind Group
• Slingo Originals
• Slingshot Studios
• Snowborn Games
• Spearhead Studios
• SpinPlay Games
• Spinmatic
• Spinomenal
• Spribe
• Stakelogic
• Storm Gaming
• Stormcraft Studios
• Switch Studios
• Thunderkick
• Tom Horn Gaming
• Triple Edge Studios
• WMS Gaming
• Wazdan
• Wishbone

The 21 Casino online customer support is helpful and efficient. You can contact the team via 24/7 live chat, email, or visit the help centre, where various questions with detailed answers are available. For quick answers, the live chat is the best option. We waited only a few seconds before we were chatting with an agent who quickly answered all our questions.

Final Thoughts: Top UK Operator

We have reached the end of our 21 Casino review, and you should now have a better idea of whether it is the platform for you. We believe it is a good choice for UK players.

The platform boasts over 3,000 games from 100+ software providers, secure payment methods, and 24/7 customer support. The welcome bonus is generous, and the site is fully licensed by the UK Gambling Commission. You can take a look at the rest of our guides below, but please remember always to gamble responsibly.