Every browser game you play was made by someone who started as a beginner. Making your own browser game is more accessible than most people think — you don't need a game engine, expensive software, or formal programming education to create something playable and shareable. Here's how to start.
What You Need
To make a browser game you need: a text editor (VS Code is free and excellent), a browser to test in (Chrome or Firefox), and basic knowledge of HTML, CSS, and JavaScript. If you don't know JavaScript yet, it's worth learning the fundamentals first — the Mozilla Developer Network (MDN) has free tutorials that cover everything you'll need. You don't need to be a professional programmer; understanding variables, functions, loops, and basic object-oriented concepts is sufficient.
The HTML5 Canvas
The HTML5 Canvas element is the foundation of most browser games. It's essentially a drawing surface in your webpage that JavaScript can draw on and update many times per second to create animation. A basic game loop uses canvas like this: draw everything at its current position, update all positions by one frame's worth of movement, clear the canvas, draw everything again. Repeat sixty times per second. That's the foundation of every browser game from Pong to Krunker.
Start Simpler Than You Think You Should
The biggest mistake new game developers make is starting with a complex idea. Make a rectangle that moves when you press arrow keys. Then make it bounce off walls. Then add a second rectangle that moves automatically (this is your enemy). Then add collision detection so touching the enemy resets the player. Congratulations — you've made a game. Every additional feature (sound, art, scoring, multiple levels) is a layer on this foundation.
Free Resources for Learning
MDN Web Docs has complete JavaScript and Canvas tutorials. The YouTube channels "Traversy Media" and "Chris Courses" have free browser game development tutorials. "The Coding Train" on YouTube makes creative coding approachable and entertaining. Khan Academy has interactive programming courses. All of these are free and more than sufficient to go from zero to a working game.
Publishing Your Game
Once you have a working game, GitHub Pages is the easiest way to make it playable by anyone in the world. Create a GitHub account, create a repository, upload your game files (an index.html and any JavaScript files), enable GitHub Pages in the repository settings, and your game is live at a public URL. It's free, requires no server management, and the same technology that powers this site. Your game will be playable by anyone in the world within minutes of you uploading it.