OpenCE

PC port of Halo: Combat Evolved

DecompilationPort Type
OpenCommunityEditionDeveloper
13 Nov 2026Page Updated

Details

Developer: OpenCommunityEdition
Port Type: DecompilationThe game's code was rewritten by hand as source code that builds back into the same game, then made to run natively on PC.
Game: Halo: Combat Evolved
AI Use: AI-assistedAn AI coding tool is credited as co-author on 654 of the last 2271 commits. Source
Source Code: GitHub
Page Updated: 13 November 2026

Platform Support

Windows
Linux
Android

Screenshots

What you need: An Xbox disc image (.iso or .xiso) of Halo: Combat Evolved, made from your own disc. Any version works.

Overview

Online PlayCross-Platform Play

OpenCE is a port of the Halo: Combat Evolved decompilation to Linux, Windows and Android. The decompilation is of an Xbox build of the game, and the port replaces the console’s libraries with SDL3 and OpenGL (OpenGL ES on Android). Maps from the European release are adjusted to play like the North American ones, so players of both versions can play together.

Its system link multiplayer has new netcode and takes up to 128 players. Linux, Windows and Android machines can share a game on a local network or over the internet with an invite link, without a server from the project. A new build is released for each change that builds on all three platforms, and the game can update itself.

Many of its commits credit the AI tool Claude as co-author. The download contains no game data. It needs an Xbox disc image of Halo: Combat Evolved, made from your own disc.

How to Set It Up

Download the zip for your system and extract it. On Android, also copy the disc image to the phone.
Start the game and select your Halo disc image when asked.
The game extracts the maps folder from the image, then starts. On Linux and Windows it sits next to the program.
At start-up the game looks for a newer build and offers to install it.

Go to Downloads