
A World War II computer. An archive of lost books. A world-changing secret. Narrative deduction meets audio drama, from the creators of Overboard!, Heaven's Vault and A Highland Song.
Modeled estimate, not a reported figure. How we estimate →
Media

About
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.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English**languages with full audio support
Engagement
Hours played at review time, across 55 reviews with recorded playtime.
Reviews
Themes across 55 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
A dizzying investigation through highlights of and commentary upon metaphysical texts and pulp sci-fi novels, TR-49 gives just enough breadcrumbs for you to put the story together yourself, with inductive leaps and a little math. Whenever I got stuck, I looked at the extensive in-game notes listing authors, texts, and file codes and I found at least one more thread to pull on... right up until the end when I felt suddenly very stupid. Metaphysics! The mysterious current-day that your POV character finds herself in isn't really examined, but it also ends up not being important. There is an old radio through which you can communicate with unseen characters (you only choose to speak or to ignore, there are no dialogue options) and this dialogue is written and performed well enough but the meat of the story is in the past, with interweaving threads covering a century of memorable characters almost none of whom you will ever get to meet and most are long dead but still there is drama in their lives and their secrets. The interface - this 50s-esque computer with a round display, levers and a split-flap display - is simple enough once you know what you're doing. A touch of friction kept me from mindlessly clicking letters and numbers but I could still search through ten or twenty possible results without much frustration. I found TR-49 a neat game of deduction and mystery, reminiscent of Obra Dinn or Her Story, and well worth the price!
Gg
很有趣的閱讀推理遊戲!知識改變世界!
Short and sweet game. Loved the premise and mechanics. Pretty straightforward, but does make you think through a puzzle and consult the automatically-written notes now and again.
This is a fantastic puzzle game. I've been hooked from start to finish.
Related
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Trends
Concurrent players on Steam, sampled daily since tracking started.
Audience
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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