Square Enix have announced that Lara Croft and the Guardian of Light is to receive a major update on Xbox Live Arcade tomorrow with full online functionality and co-op play.

Also available tomorrow is a DLC pack, which is free for 30days, entitled 'All the trappings'. The DLC adds a new area to conquer and features a combination of puzzle, exploration and combat experiences.

"We're delighted the Online Co-op is ready and going live - as a thank you to the patient Xbox gamers, and for a limited time only we will be giving away our first DLC pack for free. Download it, have a go and while you're there try the online co-op mode, it's great fun," said Darrell Gallagher, General Manager of Crystal Dynamics.

The co-op and DLC update for PlayStation 3 and PC players will be coming soon.