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.\

Free Bungie PRO with Legendary Map Pack
Bungie PRO is an expansion of your Halo 3 Xbox LIVE file share/storage space where you can store films, screenshots, map variants, and lots more. For a limited time, anyone who purchases the Legendary Map Pack will receive a special four-month promotional subscription to Bungie PRO. 

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

The Rats Nest level from the Heroic Map Pack.

Halo 3 has officially become a global phenomenon, garnering more than $300 million in sales in the first week alone. The critically-acclaimed Xbox 360 exclusive is the fastest-selling video game ever and one of the most successful entertainment properties in history. Read more …

Halo 3 New York City Launch
Check out all the excitement in the Big Apple over the launch of Halo 3. Our own Major Nelson is on hand with all the images and details. Read more …

A lucky Halo 3 fan rewarded for his commitment.

Seattle Launch Event
Seattle fans of Halo 3 are turning up the heat at their own launch event. Read more …

Get ready to finish the fight 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 …

Tips for the Final Campaign
Master Chief's final campaign has begun. And your strategy and tactics for dealing with the enemy must evolve. Take a look at our game tips for some help. Read More …