The Halo 3 Legendary edition, as well as its Halo: Reach counterpart, are both named after the Legendary difficulty setting. Artifact bag containing Dr. Halsey's personal journal and other classified documents and effects that unravel long-held secrets of the Halo universe. A book containing a selection of storyboards for the game's cutscenes, illustrated by Lee R. Wilson. While Disc 1 (Collector's Edition essentials disc) featured a still version of the Microsoft Game Studios and Bungie logos, Disc 2 (Legendary Edition essentials disc) featured the Halo 2 version of the logos in widescreen, as seen in Halo 2 Vista.

Halo: Reach Legendary Edition | Halo Alpha | Fandom Halo: Reach Legendary Edition | Halo Alpha | Fandom

Exclusive, behind-the-scenes footage and videos, a high-definition "Making of 'Halo 3'", a documentary showcasing the Bungie team and its effort to create the most anticipated title in the industry's history, numerous high-definition featurettes documenting the creative design processes involved in developing the game; and a look at some early game concepts and their evolution through the game's development. The Halo: Reach Legendary edition, as well as its Halo 3 counterpart, are both named after the Legendary difficulty setting. A plastic stand with a slot for the two DVD cases which the helmet can mount over. The stand includes an individualized ID tag at the base An interactive Xbox 360 disc (included also in the Collector's Edition). The contents of the disc are the following:

The boxset is composed of two parts: the inner box (which is the actual box itself) has an image of an activated Portal, while the outer box (which is a simple cover) has a large 3 printed on it, with the words "Halo 3 Legendary Edition" below that. On the other side of this is a large picture of the Master Chief, which can be used as a poster.