Xbox 360 players planning to lace up in Lara Croft's skin-tight boots this November can look forward to a double helping of new content even after the final credits roll by. Eidos announced that it has inked a deal with Microsoft to release two additional chapters to Tomb Raider: Underworld, offering some six additional hours of raiding tombs, or at least what passes for tombs these days.

The first bit of DLC, ominously titled Beneath the Ashes, will debut this Christmas, adding a new area and enemies as well as a continuation of Underworld's story. The second, dubbed Lara's Shadow, promises "a new kind of playable character," leaving us wondering if Lara been drinking from the Phazon pool again? Eidos bills the new content as "exclusive" to Xbox Live Marketplace, though we'll at least try to feign surprise should similar content make its way to other platforms as well.

This article was originally published on Joystiq.

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