PC; Inkle
The UK game developer’s latest is a database mystery constructed from an archive of fictional books. Their combined contents threaten to crack the code of reality

Bletchley Park: famed home of the Enigma machine, Colossus computer, and, according to the premise of TR-49, an altogether stranger piece of tech. Two engineers created a machine that feeds on the most esoteric books: treatises on quantum computing, meditations on dark matter, pulp sci-fi novels and more. In the mid-2010s, when the game is set, Britain finds itself again engulfed by war, this time with itself. The arcane tool may hold the key to victory.

You play as budding codebreaker Abbi, a straight-talking northerner who is sifting through the machine now moved to a crypt beneath Manchester Cathedral. She has no idea how it works and neither do you. So you start tinkering. You input a four-digit code – two letters followed by two numbers. What do these correspond to? The initials of people and the year of a particular book’s publication. Input a code correctly and you are whisked away to the corresponding page, as if using a particularly speedy microfiche reader. These pages – say, by famed fictional physicist, Joshua Silverton – are filled with clues and, should you get lucky, further codes and even the titles of particular works. Your primary goal is to match codes with the corresponding book title in a bid to find the most crucial text of all, Endpeace, the key to understanding the erudite ghosts of this machine.