gaming•Mon, October 5, 2026•4 min read

Halo: Combat Evolved Is Now Playable Directly in Your Web Browser

Developer Mitchell Hynes has released a fully functional browser-based version of the original Halo: Combat Evolved. This impressive project, built on recent decompilation work, supports split-screen co-op and massive 128-player multiplayer battles.

A Masterpiece in Your Browser

The iconic 2001 shooter Halo: Combat Evolved has arrived in an unexpected place: your web browser. Developer Mitchell Hynes has successfully ported the original Xbox version of the game to the web, allowing users to jump into the campaign or multiplayer battles without needing a console or an official launcher.

The browser port brings the classic Halo experience to the modern web.

Technical Achievement and Features

This project is more than a simple emulation; it is built on the recent decompilation of the original Xbox code. Because it runs directly in the browser, it is highly accessible, with reports suggesting it can achieve 70-80 FPS even on modest hardware. Hynes’ build includes several features that have made the community take notice:

Full campaign playability.
Split-screen co-op support.
Experimental 128-player multiplayer lobbies.
Native mouse and keyboard controls.

The transition to a web-based format has been wildly popular, with early reports indicating nearly 20,000 games played across 115 countries within the first five hours of launch. While the project is a technical marvel, users should be aware that the port is optimized for Chromium-based browsers and currently struggles on iOS and Android devices.

In an act that is both technically impressive and presumably legally dubious, a developer has got a build of the original Halo: Combat Evolved working in a web browser.
— PC Gamer

Key Takeaways

Mitchell Hynes created a browser-based version of the original Halo: Combat Evolved using decompiled code.
The game supports the full campaign, split-screen co-op, and massive 128-player multiplayer.
It is best played on Chromium-based browsers for the highest performance.
The project gained immediate traction, with thousands of matches played in its first hours.
Users are advised that, like many fan projects, its long-term availability is uncertain.

FAQ

Is the browser version of Halo free?

Yes, the project is currently accessible for free, though usage requirements may evolve as legal and hosting constraints are addressed.

Can I play this on my phone?

The developer has noted that the port does not run well on iOS or Android devices; it is primarily optimized for PC.

Does it support multiplayer?

Yes, the browser port supports multiplayer, including experimental support for up to 128 players.

Is this an official Microsoft project?

No, this is an unofficial, community-made project created by developer Mitchell Hynes.