This game is rated ESRB: Teen for Language and Mild Violence.
A voice is saying your name. A WWII-era machine, long hidden in a church basement, whirs to life. Through a crackling speaker, a man asks you to find a stolen book. He only knows the title. Time is running out.
The machine, created by Bletchley Park engineers Cecil Caulderly and Beatrice Dooler, contains a vast archive of obscure books, letters, and journals fed in over the span of fifty years in an attempt to crack the code of reality. As their lives fell apart, the machine kept working.
Navigate the computer’s archive. Link its obscure texts and uncover its creators’ secrets. Communicate with the man behind the speaker to figure out your role in this mystery. Destroy the book at the core of the machine — before it’s too late.
Deduce links through the archive to locate hidden sources.
Unravel the stories and unearth the secrets of the books’ authors and the machine's creators.
Map the archive and find the book that will rewrite the world.
Talk with your handler at any time, creating a dynamic audio drama that responds as you explore.
Featuring the voices of Rebekah McLoughlin (The SCP Archives, Eternal Threads), Paul Warren (A Highland Song, Viewfinder, The Séance of Blake Manor) and Phillipe Bosher (Baldur's Gate 3, Doctor Who, The Hitchhiker’s Guide to the Galaxy).
Original soundtrack by Laurence Chapman (A Highland Song, Heaven's Vault, The Mask of the Rose).
TR-49 takes inspiration from narrative deduction games like The Roottrees are Dead, The Return of the Obra Dinn, Type Help and Her Story, and from audio dramas like The Magnus Archives and ars PARADOXICA.
Written and created by the award-winning team behind Heaven's Vault, Overboard!, and A Highland Song.
TR-49 is a narrative deduction adventure developed by inkle, releasing in 2026 for PC, Mac, and Nintendo Switch. Set around a WWII-era computing machine hidden in a church basement and built by Bletchley Park engineers Cecil Caulderly and Beatrice Dooler, the game casts the player as someone tasked with locating a stolen book before it causes irreversible harm. Over fifty years, the machine accumulated an archive of books, letters, and journals in an attempt to decode the nature of reality — and the fractured lives of its creators are embedded within those texts. Gameplay centers on navigating this archive, identifying connections between obscure documents, and gradually mapping a path to the book at the machine's core. A handler communicates through the machine's speaker throughout, and conversations with him evolve dynamically based on exploration progress, forming an interactive audio drama. Voice performances come from Rebekah McLoughlin, Paul Warren, and Phillipe Bosher, with an original score by Laurence Chapman.
