
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
Fun detective like puzzle game
A short, clever puzzle game that mixes worldbuilding, discovery, mystery, and adventure all in on.
.
A short but fun dive into repairing a broken library catalog.
An excellent entry into the deduction puzzle genre.
Unlocked all the achievements, but it was not that intriguing tbh
Incredible game. I usually don't have patience for reading in games like this, but you learn very quickly that you must do so to beat it. With an incredible narrative (and solid voice acting), it skirts and teases the paradoxes that come with time distortion/quantum realities beautifully. I would recommend this game to literally anybody.
Weird.
It was really, really confusing at the start as to what was happening, but that is the point I later realized. I guess I just like 90's internet detective games cause I loved this vibe and kind of game. The story is a bit complicated and is definitely not rooted in the physics of our world, but it was very interesting and I got pretty into both the story and game in the second half. I like how you choose the different endings. Overall I quite liked it, and it scratched the Roottree itch for a bit.
The intro was so frustrating that I had to stop playing. The tutorial popups, achievement popups, and voice-overs talking about what I'm reading before I've even started reading it, Just let me investigate!
Related
Related
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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