A browser-playable version of Halo: Combat Evolved is online, PC Gamer reported. Developer Mitchell Hynes shared the project on X, and it runs once the browser has downloaded the files it needs, with full mouse and keyboard support.
The version is built on a decompilation of the game by Bnunu, who have been reverse-engineering it for some time. PC Gamer reported that the decompilation, combined with a fork from team Cybersecurity, supports 128-player multiplayer and runs on Windows, Linux and Android.
Multiplayer runs peer-to-peer
There is no matchmaking. Selecting the multiplayer mode produces a room link that a player sends to others to join, and servers are peer-to-peer, so a session depends on the connection of its host. PC Gamer said the game played smoothly in its own testing and that the audio was intact, with missions slow to load.
Traffic briefly took the site offline
Attention from Hynes's post on X briefly knocked the site offline after it was automatically flagged for "suspected phishing", PC Gamer reported; it has since returned. Hynes said the site had logged almost 20,000 games across 115 countries within five hours. Word of the project subsequently reached the Halo subreddit, where players were posting lobbies for others to join.
PC Gamer described the project as "presumably legally dubious" and noted that Microsoft released Halo: Campaign Evolved last month.
