Ever wanted to join The Doctor in the TARDIS and fight off intergalactic nasties like Autons, Clockwork Robots and Daleks?  Well, now you can!

Created by BBC Worldwide and Three Rings (the game studio behind Puzzle Pirates) Doctor Who: Worlds In Time, a new social MMORPG that is free to play, but extra items and advantages can be purchased within the game.

New players can create their own character – choosing gender, hairstyle, and even species.  You are then transported into a multi-dimensional adventure that features puzzles, comic-style visuals and witty dialogue.

The game was made available to BETA testers earlier this year, but now everyone can log on and play the social game – which is in a similar vein to Farmville and Mafia Wars.

You can view a trailer for the game below, and start playing at this link.

Will you play the new game? And if you already have, what are your thoughts?