The Covenant control Earth. The Flood is unleashed and on the loose. With the fate of the galaxy hanging in the balance, Master Chief is the only one that can save the human race. Master Chief, the last of his kind, is a warrior born for combat, bred for war … and humanity’s only hope.
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You are humanity's last hope.

Legendary Map Pack
The Legendary Map Pack download for Halo 3 features three new multiplayer maps. Available April 15, the maps include Ghost Town, Avalanche, and a special surprise map that has yet to be revealed.

Heroic Map Pack
The Heroic Map Pack downloadable content for Halo 3 features three new multiplayer maps, each with a different play style. Available December 11, maps include Standoff, Rat's Nest, and Foundry.

The Rats Nest level from the Heroic Map Pack.

Get ready to finish the fight on September 25 with these three Halo 3 editions at your favorite game retailer:

Legendary Edition: Individually numbered and available while supplies last, the Legendary Edition includes a copy of Halo 3 in a collectible Spartan Mjolnir Mark VI helmet case, as well as an exclusive collection of storyboard art and the same bonus disc included with the Limited Edition. You'll also get the Legendary Edition disc, including remastered, high-res versions of the Halo and Halo 2 cinematics; an expanded digital "Bestiarum" guide to the creatures and cultures of Halo 3; The Cortana Chronicles; and exclusive machinima episodes. More Halo 3 Editions.

A hero is more than a person, a hero is a belief. A belief that, against impossible odds, the world can be saved—and that the world is still worth saving. Heroes inspire that belief in us. They renew our faith and give us that most precious of all gifts—hope. The world needs heroes. That's why, when a true hero arrives, the world will honor him. Watch the videos to find out more…

The Story So Far …
It is the year 2552. Humanity has long been at war with the terrifying alien civilization that collectively calls itself The Covenant. The war with the Covenant has reduced humanity to ragged tatters. Master Chief is the last fighting member of the legendary Spartan II military program and humanity's last, best hope. More of the story …

Character Bios
Master Chief is the last of the Spartan II soldiers. An elite group of genetically superior, highly trained super-soldiers, Spartans stand nearly seven feet tall, and in Mark VI Mjolnir powered assault armor, weigh almost 1000 pounds. More character bios …