Rumors flew earlier this week when a short trailer leaked teasing Doctor Who: The Eternity Clock, a game that has been the subject of many murmurs but until now has had very little to back up its existence.

This morning, the BBC announced that the Doctor and companion River Song are indeed coming to you via PC, PlayStation 3 and PlayStation Vita early in 2012. In The Eternity Clock, the pair must "learn to master the complexities of time travel with exceptional time-based gameplay" in order to save the Earth, as is the Doctor's wont. Changing events in one "layer" of time in-game will affect other layers, leading to a large number of possible scenarios depending on how the game's puzzles are solved. As usual, nothing attached to the words "Doctor Who" is as simple as it seems.

Supermassive Games is developing the title, with writing in tandem with BBC Wales. Fans of the series will be ecstatic to know that actors Matt Smith and Alex Kingston will be lending their voices to the game. More details will be released early next year, including more information on the other elusive Doctor game currently in the works, Three Rings and SEGA's free-to-play MMO, Doctor Who: Worlds in Time.