Free download from BBC.
The BBC has announced that Episode 1 of Doctor Who: The Adventure Games will be available to download for free from June 5, 2010.
The first episode is set in nightmarish vision of London in 1963 and sees the Doctor and Amy confronted by the new look Daleks.
"The first episode is at 'alpha', meaning that it can be played right through, and that the graphics are close to the final quality," said executive producer Charles Cecil. "There is a lot of work going on to take it to beta, due at the end of April, at which point the game will be effectively finished with only minor issues remaining to be fixed."
The first footage of the game can be seen on the Doctor Who website.