21 Casino Review

Our Rating of Bonuses at 21 Casino:


Whilst this is a really attractive casino with loads of great games, you are better off not taking the bonus for the simple reason that you stand to lose more than you deposit with a negative Expected Value. It's a pity because we really like the casino.

21 Casino Bonus Offers

Below you will find all the details about 21 Casino's bonus offers, with a comprehensive analysis of the fine print.


Expected Value

£350 with 10 Free Spins

No Deposit

21 Free Spins

First Impressions

From the outset, we were struck by how clean and well laid-out the 21 Casino website looks. With a subtle gray motif highlighted by the occasional splash of golden yellow, the site is almost entirely devoid of the tacky neon colors of other casino websites. While others may find the color motif a bit on the drab side, we found it to be a refreshing change of pace from the visual assault provided by other websites.

One of the benefits to such a spartan layout is that everything is where you expect to find it and all the features are easily accessible. The very top portion of the homepage only has three links provided: casino games, table games, and the promo page. This is about as simple as it gets, and those who want to get started playing without a lot of distractions will find this simplicity a welcome breath of fresh air.

Scroll down to the middle of the page and links are provided to more specific sections of the site. This provides a great way to hone in on more specific games and to explore the other areas of the site in detail. You can even search for games by name, or organize the available options by popularity, provider, and return-to-player (RTP) percentages.


21 Casino has a captivating Royalty-based theme which is somehow combined with a fresh and modern approach. It might seem like an odd combination to some, but the casino manages to tie all the elements together in a fun and unified whole. The result is a casino interface that simply invites you to keep exploring the various aspects of the site and to check out what other treats are in store.

Who they are

21 Casino is part of the Imperium Network Solutions Group, which launched the casino in January 2015. It is subject to regulation by the UK Gambling Commission, and licensed to operate by the Curacao eGaming Commission.

The casino is also certified by eCOGRA, ensuring the safety, security, and fairness of its operations. This has resulted in a high degree of reputability for the site, which to date is very well-regarded among most online gambling communities.

Game selection

21 Casino offers a wide range of premium quality casino games, with titles from some of the leading names in the casino game development industry. Among the companies that power the casino’s game selection are 1x2 Gaming, 2 by 2 Games, Amaya, Aristocrat, Elk Studios, Leander, Multicommerce, NetEnt, NYX, ThunderKick, WHG, and Quickspin. This stellar lineup ensures consistently high-quality performance and stability, and thoroughly rewarding playing experience.

How to claim the bonus

One of the things that we always look for in a casino is how easy it is to claim the bonuses. 21 Casino fully meets our stringent standards in this regard, with complete details of the bonuses clearly provided. We found it equally easy to find out how to claim winnings and bonuses as well.

That being said, we do wish that information regarding loyalty points are explained more clearly, as not all the games provide equal opportunities for earning points.

21 Casino offers an extensive selection of generous bonus offerings that can get you started with very little cash. In addition to the generous welcome bonus, the casino also offers weekly and monthly bonuses, as well as promotional offerings on certain days of the week.

VIP program

The casino has a dedicated VIP room where you can play for points that can later be redeemed for cash and other prizes. You also get loads of discounts, special promotions and extra bonuses, with bigger and better prizes the more you play.

21 Casino at a glance

Operator Caddell Limited N.V.
Related Sites Grand Ivy Casino, Hello Casino, Playgrand Casino
  • Affiliate Guard Dog | AGD
Date Founded 2015
Software Platforms
    English, German, Swedish
Currencies Australian Dollar, British Pound, Canadian Dollar, Euro, US Dollar
Largest Known Winner $51,633.00
Responsible Gambling Policy Satisfactory
Country Restrictions 21 Casino is available in your country
Last Data Check Apr 14, 2016

Bonus Overview

As welcome bonuses go, the 21 Casino offerings are pretty attractive. While most other casinos tend to impose a limit on their welcome bonuses, there is no such restriction at 21 Casino. The offer also comes with 10 free spins, further sweetening an already great deal.

Additional bonuses are offered with succeeding bonuses. These will add even more cash to your account and even more free spins.

But where the casino really stands apart is in its periodic bonus offers that get you loads of attractive perks in imaginative ways. For instance, there is a Facebook-based promotional offer in which you can get a fabulous prize simply by “liking” the casino’s Facebook page.

There is also a Hangover Bonus on Mondays and Tuesdays, which can get you a 21% match of up to €210 valid on your first deposit.

From Thursday to Sunday, your deposits will make you eligible for a 10% to 30% bonus, with higher percentages provided with lager deposits.

VIP Program

21 Casino has a dedicated VIP room where you can get a number of perks over and above the regular bonuses. In addition to VIP-exclusive bonuses and discounts, the program also gives you the chance to avail of special promotions.

Entry into the program is granted to players that meet the point requirements of the casino. Players typically start out at the Bronze level. The points you earn will then determine your eligibility to advance to the next level of the VIP program.

Bigger and better prizes are in store the higher up the VIP hierarchy you go, with the best perks offered to Platinum and Diamond VIP members. When you get to this level, you will receive a range of personalized services in addition to the other perks offered.

Keep in mind that not all games will provide you the equal number of points. Some games will provide more points than others. If you are trying to earn as many points as possible, the games to go for are slots, keno, and scratch cards, all of which get you 2 points for every €10 wager.

Below you can find the full details of every bonus at this casino, including the detailed rules and important points to be aware of before you deposit or play.

21 Casino £350 with 10 Free Spins


Min Deposit

35x B + D

Bonus Details

Valid Currencies
  • USD
  • AUD
  • CAD
  • EUR
  • GBP
Is the bonus cashable? No
Expected Value

Your assumed deposits is: £100

The bonus you will receive is: £121

The Bonus Plus Deposit needs to be wagered: 35 times

This means you have to wager £7735 to clear this bonus

If you play a slot machine game with a hous e edge of 0.030% you stand to lose £232.05

Your expected value in trying to clear a bonus of £121 is £-111.05

(If this value is negative, it means that you are likely to lose money trying to clear the bonus.)

Now remember, this is a statistical outcome that does not take into account variance. In very simple terms, you could get lucky, play through the bonus, and come out positive simply because you are playing a random game with natural variance.

The smaller the EV, the better your chance of playthrough with a positive outcome (because on average you stand to lose less in the first place).

Read more about expected value and what it means here.

How to Claim This Bonus
  1. Register an account
  2. The bonus will be credited instantly
  3. Make a deposit using your preferred method
  4. Familiarize yourself with all the bonus rules
  5. Contact support if you do not receive the bonus in a few minutes
Wagering Requirements

Wagering Multiple: 35x Bonus + Deposit Wager

Games Permitted and Contribution Percentages

Slots 100%
Scratch Cards 100%
Table Games 0%
Video Poker 0%

Withdrawal Limits When Using This Bonus

Restriction Type None

21 Casino 21 Free Spins

35x B

Bonus Details

Valid Currencies
  • USD
  • AUD
  • CAD
  • EUR
  • GBP
Is the bonus cashable? No
How to Claim This Bonus
  1. Register an account
  2. The bonus will be credited instantly
  3. Make a deposit using your preferred method
  4. Familiarize yourself with all the bonus rules
  5. Contact support if you do not receive the bonus in a few minutes
Wagering Requirements

Wagering Multiple: 35x Bonus Wager

Withdrawal Limits When Using This Bonus

Restriction Type Total Capped
Restriction Description The maximum cash out is $50.

Follows these rules very carefully

  • Never play with a betting system.
21 Casino Banking and Withdrawal Information
Methods for your country
Bank Transfers Withdrawal Turnaround 3 to 4 days
Checks Withdrawal Turnaround N/A
Credit And Debit Cards Withdrawal Turnaround N/A
Ewallet Withdrawal Turnaround 24 hours to 2 days
Manual Flush No
Reversal Time 96 to 120 Hours
Withdrawal Limits $ 10000 Weekly
Withdrawal Limits Players can withdraw up to $/£/€ 10,000 per week.

Games and Software

21 Casino is powered by some of the biggest names in casino game development, many of which should be familiar to those that have been playing online for a while. Among these are:

  • 1x2 Gaming
  • 2 by 2 Games
  • Amaya
  • Aristocrat
  • Elk Studios
  • Leander
  • Multicommerce
  • NetEnt
  • NYX
  • ThunderKick
  • WHG
  • Quickspin

Between these companies, 21 Casino is able to offer an exciting assortment of games, with most of the classic casino game genres packed full of options. There are also a number of games that depart significantly from the tried-and-proven casino game genres, providing a unique experience that isn't available from any other casino.

The game selections at the casino include:

  • Blackjack
  • Slots
  • Roulette
  • Baccarat
  • Caribbean stud poker
  • Video poker
  • Punto Banco
  • Pontoon
  • Texas Holdem

Within each of these categories are loads of interesting variations that provide a welcome twist to the familiar classics. With titles such as Gonzo’s Quest, Big Bad Wolf, Foxin Wins Again, Wild West, Monster Wins, Zombie Rush, Dracula, South Park Reel Chaos, When Pigs Fly, Space Wars, Jack and the Beanstalk, Guns n Roses, Cherry Blossoms, and hundreds more, you have a wide range of truly high-quality games to choose from.

Also available is a modest selection of niche titles such as scratch card and virtual betting games, along with sports games such as Virtual Soccer and Virtual World Cup. Although this selection is admittedly pretty slim, the games do provide a welcome breather from the other standard fare.

Progressive jackpot games

NetEnt is the sole provider of all the progressive jackpot games at 21 Casino. Far from being limited, this is actually a good thing as the company has built much of its reputation on its progressive games. As to be expected, most of NetEnt’s heavy-hitters are available here, including Mega Fortune, Hall of Gods, and Arabian Nights.

Of these titles, Mega Fortune currently has the biggest pot at about $5.6 million. Hall of Gods and Arabian Nights both have pots in excess of $1 million.

Mobile Casino

Devices Supported

We were pleased to find that playing the casino’s games from a mobile device is every bit as satisfying as playing from a computer. This is to be expected to a degree of course, as you are pretty much accessing the same page and not a dedicated mobile interface. From experience however, many casinos drop the ball when making the transition to the mobile interface, with lags, stutters, and overall performance some of the most common issues. It is to 21 Casino’s credit therefore that similar performance is provided on mobile and computer platforms.

Keep in mind that–like most casino websites–the 21 Casino is pretty resource intensive. You will therefore generally get better results by playing from a mobile device with a suitably powerful processor. In any case, you shouldn’t encounter any problems with a relatively recent model.

Not all the casino’s 250 games are available on mobile, of course. Again as with most casinos, the mobile selection is generally cut-down from the range of games available on a computer. The good news is that the mobile selection covers a pretty wide range, and you should have plenty to choose from for casino gaming on the go, among them slots, table games, video poker, bingo, and more.

Most of the bonuses available from the website are also available on mobile. In addition, you get an exclusive mobile bonus of 21 free spins with no deposit requirements, and an unlimited Welcome bonus.

Live Dealer Features

21 Casino offers a pretty good selection of live dealer games, with most of the popular casino game genres represented. Live dealer selections tend to be the slimmest among most casinos, so we appreciated the effort that 21 Casino has put into ensuring that the most sought-after games are available.

Numbering ten games in all, the live dealer selection includes:

  • Automatic roulette
  • Blackjack
  • Common draw blackjack
  • Roulette
  • VIP roulette
  • Blackjack
  • Roulette
  • Baccarat
  • Keno
  • Lottery

The live experience was generally satisfactory all throughout, with high production values, friendly and accommodating dealers, and comfortably fast gameplay. It is also gratifying to know that the bonuses offered at the site apply to the live dealer games as well.