How to Make an HTML5 Game

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Although Flash games have departed from this world, there is still a significant demand for browser-based and cross-platform games. Whether you yourself actively play them or not, more and more games from professional and indie developers alike come out each day.

This phenomenon is largely thanks to HTML5 games which have filled the gap to keep up with these eager gamers. In addition, thanks to the advancement of technology and new frameworks, HTML5 game development has reached extensive heights, allowing for multiplayer experiences, 3D graphics, and more! It is not unwise to say that gaming is now just as viable via a browser as it is on many other devices!

Assuming this sounds like an exciting prospect to you as a game developer, in this guide we’re going to delve into the topic of HTML5 game development and give you the run-down of how you can make your own games! Sit back, relax, and prepare to enhance your game development skills in entirely new ways!

What exactly is an HTML5 game?

Let’s start from total zero. What is HTML5? that’s a tricky question. There is an official definition of HTML5, which simply stands for the latest revision of HTML (the markup language used all over the world to build websites), and the more hyped definition (what most people understand when HTML5 is mentioned) which is all the “new” features of the web technologies that have come out in the last few years (JavaScript API’s like the Canvas or WebAudio, semantic HTML tags, etc).

For our purpose, we’ll use bits of the two. HTML5 is HTML in its latest version, which includes a whole bunch of cool features that make web technologies an open standard with endless possibilities combining HTML, CSS and JavaScript.

Having HTML along with all these superpowers that go beyond making a simple website allows us to make, among other things, games. These are HTML5 games.

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 Building blocks

The very basic building blocks of a HTML5 game are those of the web:

• HTML
• CSS
• JavaScript

Similarly to what happens with HTML5, when people talk about CSS3 they usually refer to the new things that come with CSS’s latest specifications, but in an analog manner, CSS3 is simply the latest CSS. Ignoring for a second the semantics of these definitions and thinking of the hyped versions of these terms, we also may need, in order to make HTML5 games:

• HTML5 (JavaScript API’s)
• CSS3

With the above you can make awesome games that will run on modern web browsers on mobile and desktop, but some games might require more features, so there are more building blocks that you can add.

For instance, you may want to make 3D games. If that is the case there is also WebGL, which is a JavaScript API to render 2D and 3D graphics on the browser, using the GPU for greater performance.

Server side

If you want your games to saved data remotely you’ll need a server-side for your game. You can develop your own backend using any server-side language, you’ll need well a server in this case.

• JavaScript (NodeJS)
• PHP
• Java
• Python
• Ruby

Or you can use a third-party Backend-as-a-Service provider such as Firebase or Parse. Some have free versions you can use and they’ll start charging you once you surpass certain limits. Some of these providers are particularly focused on games, some are mostly conceived for mobile apps but can be used for games too.

How to distribute a HTML5 game

The easiest way to distribute a HTML5 is to simply put it out there! By being built as a website, you can just embed it in on a page and publish it. Just like that.

If you want to distribute it through proprietary platforms you have to go through a process called wrapping. Basically, you create a native app for the platform you wanna distribute it to (iOS, Android, etc) and put your game inside so that this app acts like a web browser and “runs” your game.

For desktop platforms such as Windows, Mac or Linux there is a tool called NWjs that allows you to pack your HTML5 games for these platforms.

We can only cover the basics here, but we encourage you to read our more in-depth advice about publishing games.

HTML5 game frameworks

Most games share some concepts, that of sprites (graphic elements that represent enemies, players, elements in your game), scenes or stages, animations, sound, loading graphic assets, etc. Since most game developers want to focus on their actual game and not in creating this whole abstraction layer, it is recommended you use a HTML5 game frameworks.

HTML5 game frameworks and libraries that contain building components you can use to create your own games. These libraries are Open Source projects created and maintained by people who want to contribute to the HTML5 gamedev environment. In many cases they created the frameworks for their own games, and after realizing that other people would want to not only use it but also contribute to it they released them as Open Source code, so everybody wins.

Picking what game engine to use is an important decision, so make sure you do proper research before making your choice. No matter what engine you pick, you will have to get familiar with its code and inner working if you want to use properly, so they shouldn’t be treated as black boxes.

What can help you make your choice:

• Is your game for desktop, mobile or both?
• Do they have an active community?
• Are there many people using the framework nowadays?
• Is it being maintained or the Github page looks like an abandoned town?

Sometimes looking at real games gives you more insight than just words. This project compares different engines by making the exact same Breakout game in all of them.

Some popular free frameworks are:

• Phaser –> The most popular these days
• CreateJS
• LimeJS
• Quintus
• CraftyJS
• MelonJS
• PixieJS
• BabylonsJS –> WebGL framework for 3D rendering
• PlayCanvas
• ThreeJS
• KontraJS
• Cannon.js
• Stage.js
• Matter.js

HTML5 game development courses

Video courses are a great way to learn new technologies. The main difference between a video course and just watching YouTube videos is that there is more structure. Good courses have a clear goal and build on to it step by step. Below a list of courses and tutorials by Zenva that can give you the tools you need to create HTML5 games.

General Game Development

Phaser

WebGL, 3D, and XR

HTML5 Skills

At the GameDev Academy, as you know already we have a bunch of HTML5 game development tutorials, mostly on Phaser, LimeJs, Quintus and BabylonJS. There are other great places to find good quality HTML5 gamedev tuts:

HTML5 for Schools

Are you a teacher looking to help students get into frameworks like Phaser or teach them core and relevant web development skills? Try out Zenva Schools – an online platform offering coding-based courses for use in the classroom. The platform comes with video lessons, text summaries, quizzes, classroom management features, reporting, and more to help support learning HTML5!

HTML5 gamedev communities

You can find plenty of active communities on the Internet, some focus on gamedev in general and some others just in HTML5 gamedev.

Web:

Facebook:

Other Communities:

HTML5 gamedev challenges

• The Global Game Jam® is an annual event, usually occurring in January every year. Participants work concurrently around the globe, and around a central theme, and then work together to create a game.
• j13k competition: the competition is over but you can still read the Blog, subscribe to the Newsletter, and check the Resources for tools.

 HTML5 gamedev podcasts

I just know Lostcast, a podcast created by the guys from Lost Decade Games (whom we’ve interviewed in the past). In the podcast episodes they talk about they HTML5 games and game development in general.

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