
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
one of the best puzzle games i've ever played. fantastic story!
It opens with the Lady of Shallott, what more do you need? Seriously, if you liked Lathe of Heaven, Ars Paradoxica, or anything in between, this is a lovely game. I'm having to go back now and take notes - the little red dots tell you when you're missing a link but notes definitely help!
Absolutely awesome game. I have enjoyed the last 6 hours simply trying to get through the archive. A nice story, with an excellent gameplay behind it. Among my favourite games of all time. By far.
wonderful game
It's like someone read Danielewski's [i]House of Leaves[/i] and figured out a way to make a game out of it.
If you want to legitimately feel like Alan Turing I'd highly suggest playing this. Incredibly compelling and alluring story that gives you just the right amount of clues in order to figure the rest out on your own. Almost all the dialogue is optional, and doesn't impede gameplay. Searching the archive eventually becomes second nature, to the point where finding the very last entry felt easier than finding the first 5. Easily one of the best puzzle games I've played in a long while.
This game is pretty amazing and engaging. Despite its minimal set (you are the whole time in front of the machine) you get pretty soon sucked into the story. - or better the stories. But maybe they are all connected and it is only one story! It is challenging, but solvable
I thoroughly enjoyed this one. The puzzle part of the game is mostly identifying missing portions of code through reading text. The story was interesting and there are multiple endings.
A very strong puzzle game that falls a little short toward the end. Otherwise, finding sources and puzzling together the setting for this game was a genuine treat. Highly recommended.
Incredible game. If you love picecing things together using few clues available, you'll love this. Absolutely sublime game. I recommend playing it without ever consulting a guide, the satisfaction you feel when you find new things and see progress is indescribable. Worth every penny.
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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