Biggest Online Casinos

Biggest Online Casinos

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While smaller casinos do have their advantages, large online casinos are known for consistently offering players an unbeatable online casino gaming experience. The bigger online casinos offer the most casino games and slots, giving players a wider choice of games. If players are seeking out for some of the biggest online casinos in the world, they will be happy to know that their search stops here with BestCasinos, which presents a comprehensive list of casinos that have at least 500 online casino games in their portfolios.

While choosing an online casino to play at, players usually take into consideration bonus offers, licensing and ownership, customer support, and banking details. They also spend a lot of time researching the casino’s software and game portfolio. If players do not want to be stuck with a casino that offers a limited number of games, they should consider registering at the biggest online casinos.

The biggest online casinos also offer the largest number of games. Their game library includes not only slots, but also table and card games, video poker games, specialty games, instant play games, lottery games, scratch cards, and keno and craps. In other words, large online casinos have something for everybody, irrespective of the size of their bankroll, gaming taste, age, and gender.

Since most big online casinos use the latest HTML5 technology, they can be accessed on a wide range of devices, including Mac computers, PCs, smartphones, and tablets. Players do not have to download any casino gaming software. They just need to create one account to play games, claim bonuses and rewards, and take part in the promotions on any device under the sun.

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9 Biggest Online Casinos FOUND
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RATING: 88%RATING: 88%
Up to €300 Welcome Bonus + 100 Free Spins
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Canada, Europe, Finland, Germany, International, Netherlands, Norway, Sweden, United Kingdom Software: Betsoft, Big Time Gaming, Evolution Gaming, Genii
, GiG Games, Microgaming, NetEnt, NYX, Play'n Go, Quickspin, Red Tiger, Yggdrasil Games: 700+ Cash Out Time: 12 hours
WHAT'S HOT?
Truckload of casino games from respectable developers. Hassle-free and faster payouts. Proactive and intelligent customer support.
RATING: 94%RATING: 94%
Get €100 Bonus + 200 Free Spins
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Canada, Europe, Finland, Germany, Netherlands, Sweden, United Kingdom Software: Betsoft, Big Time Gaming, Elk Studios, Evolution Gaming, IGT, Merkur Gaming, Microgaming, NetEnt, Next Generation, NYX, Play'n Go, Quickspin, WMS Games: 2,200+ Cash Out Time: 12 hours
WHAT'S HOT?
Award-winning gambling venue. Extensive offering of casino games. Top-quality live dealer - 50+ titles. Engaging bonuses. Fast withdrawals.
RATING: 92%RATING: 92%
100% up to £400 Welcome Bonus + 100 Free Spins
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Canada, Denmark, Europe, Finland, Germany, International, Netherlands, Nigeria, Norway, Pakistan, Singapore, Sweden, United Kingdom Software: Betsoft, Big Time Gaming, Evolution Gaming, iSoftBet, Microgaming, NetEnt, Novomatic, NYX, Play'n Go, Thunderkick, Yggdrasil Games: 1000+ Cash Out Time: 12 hours
WHAT'S HOT?
King of mobile casino. Award-winning gambling venue. Slick, easy-to-navigate interface. Impressive array of casino games. Top-notch live dealer.
RATING: 92%RATING: 92%
100% up to €200 Sign-up Bonus
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Africa, Canada, Finland, Ireland, Netherlands, New Zealand, Norway, Russia, Sweden, United Kingdom Software: 1x2Gaming, Aristocrat, Betsoft, Big Time Gaming, Blueprint, Cryptologic, EGT, Elk Studios, Evolution Gaming, Habanero, IGT, iSoftBet, Leander, Merkur Gaming, Microgaming, NetEnt, Next Generation, NYX, Play'n Go, Playtech, Quickspin, Red Tiger, Rival, Thunderkick, WMS, Yggdrasil Games: 3,500 Cash Out Time: 12 hours
WHAT'S HOT?
World’s largest slots casino. Huge jackpots. Generous deposit bonuses. Free cash giveaways. 2,000+ casino games.
RATING: 90%RATING: 90%
100% up to €100 Welcome Bonus
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Canada, Finland, Germany, Netherlands, New Zealand, Norway, Sweden, United Kingdom Software: Betsoft, Big Time Gaming, Blueprint, Evolution Gaming, Genii
, GiG Games, IGT, Microgaming, NetEnt, NYX, Play'n Go, Quickspin, Thunderkick, Yggdrasil Games: 400+ Cash Out Time: 12 hours
WHAT'S HOT?
Innovative, user-driven interface. Unique gaming experience. Instant rewards & no wagering requirements. High-quality casino games.
RATING: 88%RATING: 88%
100% up to £300 Sign-Up Bonus
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Africa, Asia, Canada, Europe, Finland, Germany, Sweden, United Kingdom Software: Big Time Gaming, Evolution Gaming, Microgaming, NYX, Playtech Games: 250+ Cash Out Time: 12 hours
WHAT'S HOT?
Long-standing reputation. Slots, table games, card games, jackpots, live dealer. William Hill Macau. Impressive bonuses & promotions.
RATING: 92%RATING: 92%
Up to €1200 Bonus + 200 Free Spins
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Canada, Europe, Finland, Germany, International, Netherlands, New Zealand, Norway, Sweden, United Kingdom Software: Big Time Gaming, Elk Studios, Evolution Gaming, IGT, Leander, Merkur Gaming, Microgaming, NetEnt, Novomatic, NYX, Play'n Go, Quickspin, Thunderkick, WMS, Yggdrasil Games: 600+ Cash Out Time: 12 hours
WHAT'S HOT?
Wide selection of casino games. Completely instant-play casino. Impressive offering of innovative slots. Unique adventure promotions.
RATING: 84%RATING: 84%
100% up to $200 Bonus + 50 Free Spins
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Canada, Finland, Germany, Norway, South Africa, Sweden, United Kingdom Software: Aristocrat, Betsoft, Evolution Gaming, Microgaming, NetEnt, Next Generation, NYX, Play'n Go, Quickspin Games: 1300+ Cash Out Time: 12 hours
WHAT'S HOT?
1,000+ different games available. Top-notch live dealer casino. Impressive welcome bonus. Free-to-play casino games. Fast deposit and withdrawals.
RATING: 84%RATING: 84%
$1500 Signup Bonus & 300 Free Spins
* New Customer Offer. T&C's Apply. 18+. Please Gamble Responsibly.
Target Markets: Canada, Germany, Norway, Sweden, United Kingdom Software: Evolution Gaming, Microgaming, NetEnt, NYX, Play'n Go, Quickspin Games: 600+ Cash Out Time: 12 hours
WHAT'S HOT?
Over 1,000 different casino games from industry giants, ‘out-of-this-world’ gaming experience. Free spins, casino bonuses. Mobile compatible.

Online Casinos with the Most Casino Games

Online Casinos with the Most Casino Games

What is the biggest online casino is a question easy to ask and tricky to answer.

That is why we here at Best Casinos have deployed an army of online casino experts. Their mission is to check and examine a great number of online gambling venues. After that, their task revolved around reviewing these handpicked online casinos based on numerous, strict criteria.

It took a lot of time, effort and dedication to compile relevant standards and lists before unveiling them before you. We at BestCasinos.com choose only the best and finest for our readers. Our online casino recommendations are honest and unbiased.

Discovering the biggest online casinos in Europe is time-consuming and requires dedication. We want you to have the most quality casino content, so that’s why we have done the heavy lifting for you.  What follows is a compilation of key touchstones considered in finding the largest online casinos in the world.

Licensing & Security

The aspect you need to look at before all others!

Legitimate online casinos are checked above all based on their licenses. So we need to address the elephant in the room immediately.

Having at least a couple of distinguished regulatory bodies makes a good online casino. But having 3+ strict supervisory organs is optimal for the biggest online casinos.

The most reputable and rigid monitory firms are the UK Gambling Commission (UKGC), the Malta Gaming Authority (MGA), Gibraltar Betting and Gaming Association (GBGA), and the Swedish Gambling Authority (Spelinspektionen). There are many others like Alderney, Ireland and Curacao, but the above are known for their strictness. Only the largest online casinos possess their licences.

You can check every online casino’s licensors on the bottom of the homepage. Simply scroll down and you will see the stamps of approval.

What’s more, a big online gambling name takes care of your safety through other means of protection. One of the measures for precaution is the utilisation of the SSL protocols. Secure Socket Layer encryption makes sure all your financial transactions are intact.

They safeguard your request for deposit/withdrawal by establishing a secure connection between you and the operator.

Likewise, a reliable and trustworthy online casino posts its audits for the public to see. Some of the most eminent agencies are eCogra and TST. These independent auditing bodies check the regulation of all activity at the casino premises.

Moving on to the main part of the list, here is a visual representation of what we deem crucial in the process of recognising a big online casino:

How to Recognise Big Casinos Online

Multi Software Casinos

All the biggest online casino companies know that it’s important to have a plethora of casino suppliers by their side. Sure, sticking with one slot provider can be a good tactic for some casino operators. However, it is usually favourable to boast at least several developers support the game library.

The main reason behind this logic is the diversity of styles. While players usually prefer a particular kind of visuals, they like to shift to others from time to time. You might be into fantasy slots, but you can get tired of them. Perhaps then you’d like to give branded video slots a shot. Or animal slots might be up your alley. At the end of the day, it is good to have a choice.

From a technical point of view, the gameplay and mechanics of those slots should be user-friendly. What we mean by this above all is a solid payout percentage (RTP). RTP stands for return to player. For information about the highest-paying slots from various slot providers, check out our top RTP lists:

Additionally, it’s also nice to check out different approaches to the same theme.

Therefore, you can play Asian or Egyptian slots from Realtime Gaming (RTG), NetEnt, Play’n GO or Microgaming. And that’s just one instance. You can experiment with a litany of slots if your favourite online casino partners with multiple manufacturers.

Lastly, let’s not forget jackpots. Progressives are a burning topic, especially among high-limit players. They take some time to accumulate, but when they do, that pay out immensely. Progressive jackpots are made for patient players. Big online casinos should offer at least a dozen jackpots.

Rich Slots & Casino Games Lobby

It is not only slots that concern us. We at Best Casinos are aware that some players might be fonder of table and card games, as well as live dealer games. Besides hundreds of diverse slots, a big online casino will boast a display of Roulette and Blackjack variants. Baccarat, Sic Bo, Keno, Craps and video poker should also be members of the team.

The same rules apply to live casino. A live dealer lounge is an ever-welcome guest at all the biggest online casinos. In today’s fast-paced world, few people have time to go to a physical casino. Instead, they opt for an ultra-lifelike, authentic live gambling experience from home.

At the largest online gambling venues, players can play Live Roulette, Live Blackjack and Live Baccarat, to mention a few. Big software suppliers like Evolution Gaming, NetEnt and Playtech are the most famous and prolific live dealer providers.

Helpful Customer Service

A frequently overlooked factor of a successful online casino is a good customer support team. But what does “good” in this context mean? To start with, the client service team should be available 24/7.

That means an around-the-clock service, and approachability at all times. So, if an online casino’s customer service operates 24 hours a day, 7 days a week, that’s already a good start.

Besides, various communication methods are also typical of a big online casino. The most popular option right now is Live Chat. The live facility is hot with players because it provides instant help and is hassle-free. It is simple and quick, and it solves issues immediately. Furthermore, the second most popular support option is the phone.

The biggest online casinos offer its international players toll-free phone numbers. Moving on, every online gaming brand should cater to an e-mail service. Some players prefer written correspondence; it is simple as that. A comprehensive FAQ section is always welcome, as well as an online enquiry form. The latter is available directly on the website; all you need to do is fill it out with required info.

Attractive Promotions

Let’s be honest, promotions and bonuses are what first attract your attention when checking out a casino.

How cool is it to see that the casino you are considering offers a no deposit bonus?

That means that you just need to sign up and you’ll have free cash to spend on your favourite games! There are also first and second deposit bonuses at hand. All of these are reserved for new customers only.

Nevertheless, existing clients are not left hanging. As a regular player at a big casino, you can benefit from daily deals and exclusive promotions.

Daily promotions are hosted by a big number of casinos. They have a special deal surrounding a specific game or banking method on a particular day. Here on BestCasinos.com, you can find a definitive list of the best daily deals in the industry. You can play any day of the week and get free stuff, such as comp points.

On the other hand, some casinos are keener on short-lived campaigns that are announced from time to time. Luckily for you, professionals at Best Casinos keep their eyes peeled and post the ongoing promos regularly.

So, a big online casino has to have attractive promotions and bonuses.

Numerous Banking Methods

The next thing on our list concerns finances. A necessary part of your real money online casino journey is banking. To gamble for real money, you have to have a means of financial transactions. It depends on a few criteria which one works for you, and your casino of choice should offer it.

At the time of writing, the most popular payment method is an e-wallet. With this banking option, you get fast and easy transfers where additional costs don’t ensue. Great examples of popular electronic money wallets are:

Apart from electronic wallets, mobile payment options are also quite popular. Good choices are:

Moreover, having a selection of prepaid vouchers and various bank transfers is a green light for a big casino.

Finally, you’d likely want your online casino to let you utilise your preferred currency. In addition to traditional national currencies, nowadays the biggest casinos accept cryptocurrencies like Bitcoin and Ethereum.

Device Optimisation

Last, but certainly not least is the technical adaptability of the casino. Every self-respecting online casino is optimised for performance across all platforms.

Times have changed over the years and fewer players use the desktop version. The world has gotten faster and most people don’t have the time to sit down before a computer. Instead, they like to enjoy a mobile casino, be it on an Apple or Android phone.

A modern player likes to be able to play on the go. Therefore, all the biggest online casinos in the world are mobile-friendly. That means easily accessed on smartphones, tablets and Blackberry phones.

In most cases, you are not required to download any software. You can simply load the homepage of the casino in your mobile browser.

And those are the basic things that make an online casino good and big.

Reasons for the Popularity of Big Online Casinos

Let’s sum up what makes the biggest online casinos on the planet. The most trusted online casino will have a checklist that at all times needs to be complete.

First and foremost is safety. This regards the likes of licensing, encryption protocols and auditing services. Second of all is the partnership with numerous, big software providers. As a result, the third factor comes, which is an ample selection of diverse games. This game portfolio should encompass classic and video slots, table and card games, jackpots, live casino games and speciality titles.

Next up is banking. A plethora of various payment methods should be at your disposal at all times. In times of wonder, a good customer service team should be at hand. A helpful agent of a big casino will pick up the phone 24/7, and answer your queries round the clock.

Taking walk on the fun side, it’s always great to see a fine selection of rewarding promotions and bonuses. Ultimately, all of the above mentioned should be available on mobile, as well.

So, it all comes down to these 7 factors that make the biggest online casino.

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