Your Browser Just Became an Xbox: Fan-Made Halo Lets You Play the 2001 Classic With 128 Players

Mitchell Hynes’ browser project supports the complete campaign, split-screen co-op and online multiplayer, though some features remain untested and performance depends on hardware

Halo: Combat Evolved
A fan-made project lets players run Halo: Combat Evolved in a desktop browser, with the full campaign, split-screen co-op and potentially online multiplayer support Screenshot from xda-developers.com

Halo: Combat Evolved, the iconic 2001 Xbox shooter, is now playable straight from your web browser—thanks to the work of fan-made project made by Mitchell Hynes.

More than two decades after Master Chief first blasted his way across the Xbox, the legendary shooter has found an unlikely new home online. Mitchell Hynes brings the classic game to browsers, offering players a chance to experience a beloved piece of gaming history without firing up an Xbox.

The browser version comes just days after Halo: Combat Evolved was decompiled, a process that essentially reconstructs a game's software into code that developers can inspect and modify, which led fans to tweak it and give Halo a new port, mods, and all technical experiments.

Despite being designed for Xbox, the browser version can reach up to 120fps on suitable hardware, though results will naturally vary depending on the hardware you use.

And yes, this isn't just a brief test where you play for ten minutes and close the browser; you can play through every mission from start to finish. All you need to do is open a compatible desktop browser, load the project, and start playing.

Halo: Combat Evolved Played in a Web Browser

For those looking to play with friends, a split-screen co-op mode is available. In a tweet, Mitchell Hynes also mentioned that the browser version of Halo CE supports online multiplayer for up to 128 players (though this remains untested). This capability has been demonstrated through browser-to-browser multiplayer matches, which ran quite smoothly.

A 25-Year-Old Xbox Game Is Running at Up to 120fps

This breakthrough has been warmly welcomed by Halo fans. According figures shared by Hynes, within five hours of launch, 20,000 games had been played across 115 countries, with an average frame rate of 94fps.

With all these successful tweaks, some have suggested modifying the game to make it playable on other platforms, such as iOS, Android, even handheld consoles like the Nintendo DS.

'For those wondering, it doesn't play well on mobile. There are lots of iOS/Android ports of the Halo CE decompilation. Try one of those,' he explained.

For many gamers, however, the appeal goes beyond the technology — it is also a trip down memory lane. Halo: Combat Evolved is another example of a classic game finding a new life outside the hardware it was originally built for.

Red Dead Redemption has followed a similar path, expanding from its original console release to PC, PlayStation 4 and 5, Xbox Series X|S, Nintendo Switch and, more recently, iOS and Android. Rockstar says the newer versions are designed to let more players experience John Marston's story across modern devices.

That wider availability is changing the way players revisit the games they grew up with. Instead of digging out an old console or hunting for outdated hardware, a growing number of classic titles are being brought to platforms people already use today.

And with Halo now reaching the browser, the nostalgia trip could be becoming even easier: some of gaming's most familiar worlds may no longer be tied to the machines that made them famous.

Giving new hope for other classic games to revive nostalgia.