After the first downloadable episode for Tomb Raider: Underworld was delayed by 2 weeks, we did wonder whether we'd see the second episode, Lara's Shadow, hit Xbox Live Marketplace as scheduled.

Well the good news is that it has. Eidos has confirmed that Lara's Shadow is now available to download exclusively from Xbox Live.

This episode will allow gamers to experience Lara's universe as the Doppelganger, opening up new gameplay mechanics, areas and puzzles that would not be possible while playing as Lara Croft.

The Doppelganger will have faster movements, "shadow powers" and a melee attack of "devastating accuracy and speed".

Lara’s Shadow is available for 800 Microsoft Points on Xbox Live Marketplace now.