Doctor Who: The Adventure Games - Shadows of the Vashta Nerada

The BBC have announced that the fourth Doctor Who Adventure Game will be available for download on Christmas Day.

The interactive episode is called "Shadows of the Vashta Nerada" and is written by Phil Ford.

Kicking off immediately after the cliff-hanger ending of episode three, the latest Adventure Game picks up the story of the Doctor and Amy who've materialised just south of London (and about a 1000 miles to the left), inside a sea-bed colony called Poseidon. Shadows of the Vashta Nerada features a cracking plot which surrounds a real-world conspiracy and, of course, it takes place at Christmas.

'We've gone all-out for the season finale,' says Steven Moffat, executive producer and lead writer, Doctor Who. 'Shadows of the Vashta Nerada takes place entirely underwater - something which would be impossible for the TV series, as water is so expensive. It's thrilling, terrifying, educational and fun. Just steer clear of those shadows...'

The game will be available for download for PC and Mac via the official Doctor Who website for free in the UK. Non-UK residents will be able to purchase to release.

Doctor Who: The Adventure Games will return in 2011.

(Source: BBC - Doctor Who)