The add-on levels "Beneath the Ashes" and "Lara's Shadow" were originally released in 2009, exclusively on Xbox 360. They were never available on PC or PlayStation, so this marks a new opportunity for today's gamers to try them. In "Beneath the Ashes," Lara returns to the remains of Croft Manor in order to find a powerful artifact hidden in a mysterious centuries-old labyrinth deep beneath the estate. In "Lara's Shadow," players control the doppelgänger and wield all of her powers of speed and strength. This unique gameplay experience also reveals Natla's fate following the events in the main game.
To celebrate the Xbox One announcement, Crystal Dynamics has added some previously unreleased concept art to their Underworld Flickr gallery.
Underworld is now one of more than 400 Xbox 360 games now playable on Xbox One. If you'd like Microsoft to make Legend and Anniversary backward compatible as well, cast your vote here on the Xbox website.
Lara's Shadow HD Launch Trailer from 2009 (Thanks to TombRaiderUNDERWORLD)