Circuit Breaker offers a Doctor Who: Lost in Time mobile game titled Castling.

In Circuit Breaker, the Fugitive Doctor, portrayed by Jo Martin, must work with UNIT operatives Osgood and Andrew Turner to return alien artefacts with corrupted energy signatures, which have mysteriously appeared in UNIT’s Black Archive, back to the places in time and space they belong.

Based on the long-running Sci-Fi show, Doctor Who: Lost in Time is an idle game where players explore time space and collect energy to save the universe. Players must uncover a conspiracy across time and space trying to destroy the Doctor.

Players encounter many familiar faces as they collect the cards of all the incarnations of the Doctor, their companions and more. New characters and Doctors continuously appear.

Here is the first look at the deadly Sontaran Shock Troopers who will be appearing in Castling written by Mario Mentasti.

Castling is available to download form East Side Games from 6 August for a limited time.