Doctor Who Legacy is "coming soon" to iOS and Android devices.

Releasing to celebrate the show's 50th anniversary, the upcoming app was teased with a picture of the Doctor's famous TARDIS and the hashtag "savetheday".

According to its Twitter profile, Doctor Who Legacy is a free-to-play game from the BBC, Tiny Rebel Games and Seed Studio.

The Doctor Who 50th anniversary special, titled 'The Day of the Doctor', will be simulcast globally and screened in cinemas worldwide on Saturday, November 23.

The game is likely to release around the same time, although exact launch dates are yet to be revealed.

Previous Doctor Who games include puzzle platformer Doctor Who: The Eternity Clock, which was released on Steam last year, as well as PS3 and Vita.

Originally the start of a trilogy, The Eternity Clock sequels have since been cancelled.

> Our review of Doctor Who: The Eternity Clock: Out of time

Watch a trailer for Doctor Who: The Eternity Clock: