BBC Have released The Games Of Rassilon which will release a new game for every episode of the series.
The Game which is for The Impossible Astronaut is available here

Legends tell of a Time Lord challenge that would test the guile, intelligence and fortune of those brave enough to step forward. The challenge was known as The Game of Rassilon.

The Time Lords may be near to extinction and Gallifrey consigned to history, but after centuries in abeyance the game will be soon be resurrected...”