Its sales are rivaled only by its sequels, Halo 2 and Halo 3.

Considered a classic, Combat Evolved is one of the most popular video games for the Xbox with eight million copies sold. It focuses on John-117 and the crew of the UNSC Pillar of Autumn who, fleeing from the Fall of Reach, stumble on the Forerunner Halo Installation 04, only to be forced into a desperate battle against the Covenant and the Flood. Halo: Combat Evolved is a 2001 first-person shooter science-fiction video game developed by Bungie Studios and the first game in the Halo series. ' Halo: Combat Evolved! Buy one! Heck, buy two! That's an order, soldier!' - Sergeant Johnson upon completion of the Halo: Combat Evolved demo ESRB: Mature (M) for Blood, Gore, and Violence