Phaser.js vs Kaboom.js: Which Game Library Should Beginners Start With?

If you’ve been searching for a JavaScript game library and keep landing on Phaser.js and Kaboom.js, you’re in the right place. Both libraries let you build browser games with JavaScript, but they feel very different to use, and that difference matters a lot when you’re just starting out. This guide walks you through both options honestly, so you can pick the one that fits your goals and write your first line of game code today.

What Are Phaser.js and Kaboom.js?

A game library is a collection of pre-written JavaScript code that handles the hard parts of game-making for you. Things like drawing characters on screen, detecting when two objects collide, and managing game scenes, all of that would take weeks to build from scratch. A library gives you those tools ready to use, so you can focus on building your actual game.

There’s a reason game libraries have become such a popular on-ramp for developers: building games forces you to actually use JavaScript, not just read about it. You’re wiring up real logic, handling state, responding to user input, and debugging things that break in ways tutorials never warn you about. That hands-on pressure is exactly why making games to learn JavaScript is such an effective strategy — and it’s also why choosing the right library to support that process matters so much.

Phaser.js is a mature 2D game library that has been around since 2013. It has a long track record, active development, and has been used in commercial projects. Think of it as the steady, well-documented choice with a big community behind it.

Kaboom.js launched around 2021 with a different goal: get beginners making games as fast as possible, with a playful API and minimal setup. It found a following quickly, especially among beginners and game jam participants. However, Kaboom.js is no longer actively maintained. We’ll cover what that means for you in a dedicated section below.

How Does the Code Actually Feel to Write?

This is where the two libraries feel most different. Phaser uses a class-based style, meaning you organize your game into structured scenes and objects. If you’ve written any JavaScript before, you may have seen the class keyword. Phaser leans on that pattern heavily. It’s organized, like chapters in a book, but it does require you to learn that structure upfront.

Here’s a minimal Phaser.js example that loads a sprite and displays it on screen:

// Phaser.js: display a character sprite
const config = {
  type: Phaser.AUTO,
  width: 800,
  height: 600,
  scene: {
    preload: preload,
    create: create
  }
};

const game = new Phaser.Game(config);

function preload() {
  this.load.image('player', 'player.png');
}

function create() {
  this.add.image(400, 300, 'player');
}

Kaboom uses a component-based style. You describe what a game object can do by stacking simple labels, called components, onto it. There’s less boilerplate to write up front, which feels freeing when you’re starting out.

// Kaboom.js: display a character sprite
kaboom();

loadSprite("player", "player.png");

scene("main", () => {
  add([
    sprite("player"),
    pos(400, 300),
  ]);
});

go("main");

Kaboom’s code reads almost like a list of instructions. Phaser’s code requires you to understand the preload, create, and update pattern first. Neither is wrong, but Kaboom’s style often clicks faster for complete beginners on day one.

Is Kaboom.js Still Maintained?

This question comes up constantly, and you deserve a direct answer. Kaboom.js is no longer actively maintained. The GitHub repository has seen very little activity in recent years, bugs are not being fixed, and the original developer has moved on.

What does that mean practically? Older tutorials may reference APIs that no longer work correctly. If you hit a bug, there’s no team working to fix it. The community has shrunk, so finding answers when you get stuck is harder.

The good news: a community fork called Kaplay.js picked up where Kaboom left off. Kaplay keeps the same fun, component-based style but has active development and a growing community. If you love the Kaboom approach, Kaplay is the version to use in 2025.

Which Library Has Better Community Support?

Is Phaser.js good for beginners in terms of community?

Phaser has one of the strongest communities of any JavaScript game library. There’s an official forum with thousands of answered questions, an active Discord server, and hundreds of YouTube tutorials covering everything from your first sprite to full platformer games. When you get stuck at 11pm debugging a collision detection issue, that community matters enormously.

How hard is Kaboom.js to learn without community support?

Kaboom’s community was never as large as Phaser’s, and it has shrunk further since active development stopped. You’ll find some tutorials and YouTube videos, but many are outdated. Kaplay’s community is growing but still young. If you rely heavily on finding answered questions and active forums when you get stuck, this is a real limitation to factor in.

What Can You Build With Each Library?

Phaser is built for polished, complete 2D games. Platformers, top-down RPGs, puzzle games, and even simple mobile games are all within reach. The library includes arcade physics (a system that handles gravity, velocity, and collisions automatically), tilemap support for building levels from grid-based maps, and asset preloading to manage images and sounds efficiently. A good beginner project: a side-scrolling platformer where a character collects coins.

Kaboom and Kaplay shine for quick prototypes and game jams. You can get a working game on screen in under an hour. The tradeoff is that larger, more complex projects can feel harder to organize as your game grows. A great beginner project: a simple top-down game where your character moves around and avoids obstacles.

Both libraries run entirely in the browser. No downloads required for your players. That’s a real win for sharing your first game with friends.

Phaser.js vs Kaboom.js: Side-by-Side Comparison

Beginner-focused comparison of Phaser.js and Kaboom.js

Criteria	Phaser.js	Kaboom.js / Kaplay
Ease of Setup	Add a CDN link, write config object	Add a CDN link, call kaboom()
Learning Curve	Moderate — class-based structure to learn	Low — component labels feel natural
Documentation Quality	Excellent, well-maintained official docs	Kaplay docs improving; Kaboom docs outdated
Community Size	Large and active	Small but growing (Kaplay)
Maintenance Status	Actively maintained	Kaboom abandoned; Kaplay is the active fork
Best For	Long-term learning, portfolio projects	Fast prototypes, game jams

Which One Should You Start With?

For most beginners, Phaser.js is the safer starting point. It has active development, a large community, excellent documentation, and thousands of tutorials. If you get stuck, help is one forum search away. The skills you build with Phaser, including class-based JavaScript, scene management, and event handling, also transfer directly to broader web development work.

That said, your personal goal matters. Ask yourself three questions:

1. Do you want structured learning with lots of community backup, or do you prefer jumping straight into a working game?
2. Are you building a portfolio project, or just having fun with a quick prototype?
3. Do you plan to grow your game over time, or keep it small and simple?

If you answered “structured learning, portfolio, and growth,” choose Phaser.js. If you answered “quick prototype and just having fun,” Kaplay is worth exploring, since it carries the Kaboom spirit with active maintenance behind it.

Your First Step: Getting Started Today

Steps to Get Started with Phaser.js

1. Create a new folder on your computer for your project.
2. Create an index.html file inside that folder.
3. Add the Phaser.js CDN link inside your HTML file’s <head> tag.
4. Create a game.js file and write your first scene with a preload and create function.
5. Open index.html in your browser and see your first game object appear.

Steps to Get Started with Kaplay.js

1. Create a new folder on your computer for your project.
2. Create an index.html file inside that folder.
3. Add the Kaplay CDN link to your HTML file.
4. Call kaboom() in your script and add your first game object using the add() function.
5. Open index.html in your browser and watch your first character appear on screen.

Your first game will be simple. A moving box, a jumping character, a sprite that appears on screen. That is exactly the point, and it counts as a real win. Every game developer started with something that small.

Before you dive in, it’s worth getting a handle on the core concepts that underpin every browser game — things like the game loop, canvas rendering, and handling user input. None of it is as intimidating as it sounds, and having that foundation makes your first coding session feel a lot less like guesswork. A solid beginner’s guide to JavaScript game dev can walk you through exactly those building blocks, so you hit the ground running instead of spinning your wheels on basics.

Pick your library, write your first line of code, and build something today. You’re more capable of this than you think.

Frequently Asked Questions

What is the easiest JavaScript game library for beginners?

Kaplay (the maintained fork of Kaboom.js) has the lowest initial learning curve. Phaser.js is slightly steeper but offers far more tutorials and community support for when you get stuck.

Can I make a game with Phaser.js without experience?

Yes. Phaser.js works well for complete beginners. The official documentation includes starter examples, and hundreds of beginner tutorials are available on YouTube and across the web.

Is Kaboom.js still maintained in 2025?

No. Kaboom.js is no longer actively maintained. Use Kaplay.js instead, which is a community fork that continues Kaboom’s approach with active development and updated documentation.

Which JavaScript game library has better documentation?

Phaser.js has significantly better documentation, with a full API reference, official examples, and a dedicated community forum. Kaplay’s docs are improving but still newer and less complete.

Do I need Node.js to use Phaser.js or Kaboom.js?

No. Both libraries can run directly in the browser using a CDN link. You don’t need Node.js or any build tools to get started with your first game.