whatisgithub

What is browserquest?

mozilla/browserquest — explained in plain English

Analysis updated 2026-06-24

★ 9,363JavaScriptAudience · developerComplexity · 3/5LicenseSetup · hard

In one sentence

A deprecated multiplayer browser game built entirely with HTML5 and JavaScript that demonstrated real-time multiplayer in a web browser without plugins or downloads.

Mindmap

mindmap
  root((repo))
    What it does
      Multiplayer browser game
      Real-time HTML5
      No plugins needed
    Tech stack
      JavaScript
      HTML5
    Status
      Deprecated unmaintained
      Mozilla hosted
    License
      MPL 2.0 code
      CC game assets
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Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

What do people build with it?

USE CASE 1

Study how a real-time multiplayer game was built entirely in a browser without any plugins as a reference for HTML5 game development.

USE CASE 2

Explore the client and server architecture of an early HTML5 multiplayer game to understand how game state was synchronized.

What is it built with?

JavaScriptHTML5

How does it compare?

mozilla/browserquestrob--w/cors-anywherec3js/c3
Stars9,3639,3699,349
LanguageJavaScriptJavaScriptJavaScript
Setup difficultyhardeasyeasy
Complexity3/52/52/5
Audiencedeveloperdeveloperdeveloper

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · hard Time to first run · 1h+

Repository is deprecated and unmaintained, setup documentation exists only inside client and server subdirectories with no top-level guide.

You may use and modify the code freely, but changes to covered files must be released under MPL 2.0, game assets use a Creative Commons license.

So what is it?

BrowserQuest is a multiplayer game built entirely with HTML5 and JavaScript, created by a studio called Little Workshop and hosted under Mozilla's GitHub account. It was an experiment to show what web browsers could do for real-time multiplayer experiences without requiring any plugins or downloads. The repository is marked as deprecated and unmaintained. The README is minimal and does not describe gameplay, features, or how to run the project beyond noting that documentation exists inside the client and server subdirectories. The code is available under the Mozilla Public License 2.0, and the game assets use a Creative Commons license.

Copy-paste prompts

Prompt 1
Walk me through how BrowserQuest handles real-time multiplayer communication between players using its JavaScript client and server code.
Prompt 2
Explain the client/server split in BrowserQuest, what does the server manage and what does the client handle locally?
Prompt 3
Show me how BrowserQuest synchronizes game world state across multiple connected players in its JavaScript code.

Frequently asked questions

What is browserquest?

A deprecated multiplayer browser game built entirely with HTML5 and JavaScript that demonstrated real-time multiplayer in a web browser without plugins or downloads.

What language is browserquest written in?

Mainly JavaScript. The stack also includes JavaScript, HTML5.

What license does browserquest use?

You may use and modify the code freely, but changes to covered files must be released under MPL 2.0, game assets use a Creative Commons license.

How hard is browserquest to set up?

Setup difficulty is rated hard, with roughly 1h+ to a first successful run.

Who is browserquest for?

Mainly developer.

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