What are HTML5 Casino Games?

What are HTML5 Casino Games?

Staff Writer
Updated April 10, 2024

HTML5 Casino Game guide

If there’s one thing that always stands for iGaming, it’s the dedication towards innovation. Over the years, the industry has seen a number of novelties and groundbreaking tech solutions implemented, but none made such a splash as the use of HTML5 to build casino games. And even though now HTML5 seems to be the go-to option for most game-makers, it’s our duty to explain the concepts behind HTML5 casino games.

What’s HTML5?

Let’s start from the basics. What’s HMTL?

It’s a mark-up language used for the development of web applications. It’s a new-generation technology tool, often used for games and similar content. It is a very important tool for the creation of mobile casino games on the internet.

Some of the perks HMTL gives to casino game-makers is ease-of-use and the simplicity of the design. It’s given studios a great headway in terms of adaptability, accessibility, and versatility; it’s also great for promotional uses and marketing. In other words, it’s perfect for any company that wants to create good casino games.

HTML5 VS Flash

HTML vs Flash

Before we had the pleasure of enjoying HTML5-built games, casino software companies worked with Flash. Flash technology is quite simple to understand – it’s the tech that’s behind any kind of moving image.  The Flash platform allows you to generate animations such as graphics for a variety of purposes, including games. Another thing you can do on the platform is access said content and view it as a ‘player’.

However, Flash, with all its perks and benefits, was a very limited technology. Adobe, the company that developed Flash, completely eradicated Flash a couple of years ago. And guess what replaced Flash?

That’s right – HTML5 was introduced to replace Flash technology and offer a more stable and reliable framework for animated graphics in games, etc.

We will not bore you with details about the differences between the two because, honestly, there’s not need. You need only to know that Flash is pretty much non-existent and obsolete now, and almost all casino games work using HTML5 today.

How to Get Started with HTML5 Games

HTML5 casino games are not just games on desktops, but also games on mobile platforms. And since mobile casinos – both browser-based and app-based – are flourishing right now, it’s only fair to try to understand how these casino games work.

If you want to start playing casino games on a mobile device, it can be very confusing when you first start looking around for a suitable mobile casino. We understand that. Not only are there many different sites that you can join, but the way in which you can access the games will depend on what type of smartphone or tablet you own.

That’s why we have this guide.

In this guide, we shall introduce you to the many different mobile gaming platforms that you can access and play on a mobile device. We will educate you on a mobile gaming platform that offers you exactly the type of games you want to play, and a gaming platform that is better suited to how you want to play those games!

HTML5 Games 101

The HTML5 gaming platforms are nothing more than regular casino game platforms commonly used throughout the industry. This is simply a mobile gaming platform that you can access via the web browser that the vast majority of modern mobile devices are equipped with.

If you want to play casino games on mobile, all you need to do is locate a casino that supports mobile gaming, register, and start playing.

There are two ways you can achieve this.

There’s the mobile web browser path, as well as a casino mobile app. To be honest, mobile casino apps are starting to grow in popularity, but almost every online casino has a suitable web browser version of the site. But worry not, we will explain how both methods work.

Accessing Browser-Based Mobile Casinos

Playing games on mobile browsers is the easier way, for sure. To play casino games via your mobile device's web browser, first go to the website of the mobile casino you want to play at. Just fire up your mobile devices or tablet’s web browser (Safari, Mozilla, Chrome, Opera, or whatever) and then simply enter the address of the online casino.

Once the browser loads the site, you can proceed like you would on desktop – register/log into your account, place a deposit, claim a bonus, and play games.

Another thing to note is that you can play most HTML5 web browser-based casino games on most mobile casino sites for free without having to sign up and register as a new player first. However, if you want to play the games offered on your chosen mobile site for real money, you will of course need to register as a real money player, which usually takes no longer than a minute or so.

Then, once you have registered, you can make a deposit into your newly opened mobile account. Oh, and before you deposit – we always recommend checking first whether the casino offers special bonuses for joining via mobile, because some do. Not many, but the casinos that pride themselves on being top of the line in terms of mobile gambling will surely have an offer or two for mobile gamers.

The key benefit of playing via browsers instead of casino apps is storage. Simply put, you do not need to use storage to play games – just visit the casino and they are all there. However, some punters argue that browser-based gambling is tedious due to registration. More specifically, every time you visit the site, you are required to login. While some players don’t mind that, many find it bothersome.

Downloading Casino Apps

download casino apps

It takes a while to access and find your way around a mobile casino website using a web browser. Therefore, there is another, much easier way to access and play the games. And that, ladies and gentlemen, is to download that site's casino app.

Please note that this option is available at a limited number of casinos. Not all operators have mobile casino apps! Furthermore, there are certain rogue casinos that market their downloadable casino app, but it’s neither reliable nor safe to download. Hence, if you do decide to take this route, go for recommended brands only.

You will find a link to a downloadable casino app somewhere on a mobile casino's website. When you click on it, you can simply click on the download button on the screen and the casino app will then be instantly downloaded to your mobile device.

Downloading the app usually does not take very long. It depends on how fast your mobile internet connection is or the size of the download file. But, once the download finishes, install the app. A shortcut will automatically appear on the screen of your mobile device.

You will then get a prompt to log in and register as a new user. If you already have an online account at the casino, log in to the casino using your account details. If not, quickly create a new account and then visit the lobby to play for free or for real money.

Once you have the casino app on your mobile device, tap the shortcut to launch the app. It will immediately launch, and any updates to the app will be automatically downloaded to it. You do not have to update the app every time there’s an update, don’t worry.


There are two ways in which you can easily and quickly access and play a wide range of mobile casino games. The choice is completely yours. If you want to play casino games regularly on your mobile device, it's probably best to download a casino app. Apps are easy as you download it only once, and that’s it. However, if you don’t want to waste storage on your device, visiting the site using mobile browsers might be a good choice.

If you want to learn more about playing casino games on the internet – be it on mobile, tablet, or desktop – we invite you to read more of our guides. Explore our guide database and find manuals for all sorts of casino terms. We also offer in-depth guides and strategies for playing common casino games.

Frequently Asked Questions

  • Do I need to download HTML5 casinos?

No, you do not need to download any type of casino content if you don’t want to. Casino apps are different than downloading casino lobbies – apps are built for smartphones and tablets, allowing them access to entire lobbies and casino services. Download casinos are old-school casinos that gave players a chance to download lobbies to their desktops and then play there. It’s an obsolete practice today.

  • Can I play for real money HTML casino games?

Yes, you can. That’s actually the whole point of online casino games, and regardless of the technology behind them, all casino games support real-money gambling.

  • Are BTC games HTML?

Yes, they are. If you want to find more BTC casinos and BTC games – or crypto games for that matter – check out our crypto guides above.

  • Is there HTML5 baccarat?

There are baccarat games built using HTML5, yes. You can play both RNG and live baccarat today, both on tablets and mobile phones. Check out our baccarat game database for glossary, games, and strategies.

  • What type of games can I play?

There’s virtually no limits when it comes to the choice of games you can play as HTML5 games. Slots are obviously the most popular choice, with table games such as roulette, baccarat, blackjack, and poker as close favorites. Nowadays, live games are becoming more and more popular, along with crypto and crash games. We also cannot forget bingo, which never goes out of style.



The team behind CasinosOnline consists of casino experts united in their desire to spread knowledge to a wider audience. The aim is, and always has been, to help even the most inexperienced players gain their footing in this exciting industry.

The enthusiastic members dedicate time and energy to the creation of potent and insightful content. With years of experience in various fields of this industry, our expert authors know precisely what to look for while searching for casino quality.


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