The exclusive 360 content, â€˜Beneath the Ashesâ€™ and â€˜Laraâ€™s Shadowâ€™, are said to offer â€œentirely new content specifically designed to extend the Tomb Raider: Underworld experience.â€
Tomb Raider: Underworld â€“ Beneath the Ashes takes place after the Underworld story has finished and will feature an incredible new environment to explore, additional secrets to unlock and different enemies to fight.
Tomb Raider: Underworld – Laraâ€™s Shadow will introduce players to a new kind of playable character and create a unique Tomb Raider experience.â€
The two chapters will add six more hours of gameplay, and the first (Beneath the Ahse) will be hitting the Xbox LIVE Marketplace before the year ends, and the second hits 2009.
Other than that, Eidos have also revealed that a demo for Tomb Raider Underworld will hit Xbox LIVE this month.