Halo 3: ODST is a new game in the Halo saga that lets people experience events leading up to the epic story told in Halo 3 through the eyes of an ODST (Orbital Drop Shock Trooper), as they search for clues leading to the whereabouts of their scattered squad and the motivations behind the Covenant's invasion of New Mombasa. The release adds a new di ...Read Moremension to an all-encompassing universe that gamers around the world have known and loved for close to eight years.

How long is Halo 3: ODST?
When focusing on the main objectives, Halo 3: ODST is about 6 Hours in length. If you're a gamer that strives to see all aspects of the game, you are likely to spend around 26½ Hours to obtain 100% completion.