City of the Daleks has been unveiled as the first of four new adventures which take the form of downloadable computer games available for PC and Mac. This first episode will be available for free download from www.bbc.co.uk/doctorwho on June 5th 2010.

The TARDIS materializes in 1963 - and London is in ruins. The Daleks have seized control of time and the only chance of saving Earth lies in a desperate quest to Skaro, the Daleks' home planet - before time catches up with Amy, the last survivor of the human race!

Written by Phil Ford (Doctor Who: Dreamland; Sarah Jane Adventures) and executive produced by Steven Moffat, episode one of Doctor Who: will see you helping the Doctor and Amy on an new adventure in an original story which forms part of the current series.

'City of the Daleks' features the new breed of Daleks which premiered on television in Saturday's 'Victory of the Daleks'. Nicholas Briggs provides the voice of the Daleks, alongside Matt Smith and Karen Gillan who recreate their roles as the Doctor and Amy.

"This is quite a series opener," says Phil Ford, writer, Doctor Who. "We destroy London even before the credits role - so you can only begin to imagine where we travel to from there. City of the Daleks is as big-budget as you can imagine: from London we head to Kaalann, the capital city of the Daleks, one constructed from pure anger and hate. And these new Daleks don't like to be messed with, so players are about to enjoy a new interactive episode which is as heart-pulsing as anything you've seen before."