
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 →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 1.43/day in the week to Aug 10 → 3.71/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 24 chart moves that followed a price cut of more than 20% went a median of 9 places towards #1, and the 2,419 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
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.
Engagement
Reviews
Themes across 160 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
One of my favorite games in a while. Really like the main puzzle mechanic, creepy vibes, and unfolding storyline. Incredibly impressed by how interesting a lot of the deductions involved were, and how completely the game let me loose with little guard rails. Highly recommend!
Another excellent Inkle game. I don't think I found all the secrets, but I still had a great time with the system.
This game is so fun and interesting I played for like six hours without realising. I did cheat a bit, I like puzzles but I am really not good at them so I needed a bit of extra help. It is so incredibly intriguing and the story is so strongly written its ridiculous. The only thing is some of the links between finds were pretty vague and at a point hard to justify, and the endings can be difficult to figure out but also like I'm not that smart so who cares
Media

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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
Hours played at review time, across 160 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Very engaging little game. Had a bit of a struggle figuring things out for some of the endings, but nothing that takes away from the game.
Delightful little game ... some five hours to complete, with some good world-building. I got to "the" book (you'll know what I mean when you reach it) on my own, but then was lost as to how to proceed and had to look up in some detail the final steps, which was a little sad.
Cheap and interesting sci-fi story. But you have to like puzzles and reading or use a guide. What you see is what you get.
The inspiration from Type Help (aka The Incident at Galley House) is most obvious, in that it is a game where you need to interact with a machine holding a broad story and can only expose small chunks of the narrative through noticing important details in the sections that you've already seen. I appreciate that this game is a little less linear than its inspiration whose full interface has a bit more subtlety, which makes the environment feel much more open. Like Type Help, it takes a big chance on the overall story, and I think it sticks the landing a little better (and much much better than Her Story, to give another game in the same specific genre). I got through my initial playthrough in about eight hours, so it passes the dollar per hour test even at full price. And I've got enough enthusiasm to play through the game again to finish up all of the achievements that I missed the first time through. If you're in a mood for interactive fiction where figuring out who you are and how the interface works is part of the story, then this is a fantastic way to scratch that itch.
excellent game! The story unfolds organically and I liked how nothing is really given. Clever code system
Unlocked all the achievements, but it was not that intriguing tbh
It's like someone read Danielewski's [i]House of Leaves[/i] and figured out a way to make a game out of it.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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