Halo Custom Edition is the custom edition of Halo: Combat Evolved for personal computers, released on September 30, 2003. It is a modified version of the original game that allows players to create custom content, such as maps, game modes, and vehicles.

The game is based on the Halo game engine, and requires the original Halo game disc to play. However, it also includes a custom map editor, called the Halo Editing Kit, which allows players to create their own content. The game was developed by Gearbox Software, and is distributed by Microsoft.

On July 5, 2007, the Halo Custom …