
Explore the wonderful world of books through deceptively simple cryptograms. 10% of every purchase benefits Project Gutenberg, an online library of over 60,000 free ebooks.
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): 0/day in the week to Aug 24 → 0.14/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 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

Genres
Engagement
Reviews
Themes across 47 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
非常好游戏,使我学习英语
The most fun is when the program directs you To a free copy of the book each passage is drawn from
залипалово, даже если не знаешь английского можно догадаться ну или узнать новые слова
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English
Hours played at review time, across 47 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
simple and relaxing
I really liked this game. All of the puzzles are entertaining, the difficulty progression is very good and the excerpts chosen are all good as well.
Hundreds of cryptograms, varying levels of difficulty and links to the books if you are so inclined.
This is a very relaxing and enjoyable codebreaking game. It's always a substitution code, so it's easy to get the hang of the methodology. Controls are simple and effective. Difficult level is just difficult enough to be a good distraction, but there are hints and difficulty levels if you want more relaxation. Great little game! I also ended up downloading a LOT of books for my e-reader, and I'm looking forward to discovering the various classics.
这种题为什么要放莎士比亚,全是莎士比亚才会用的单词 Rapunzel根本就不是个词,不知道这个名字的人根本就不会知道
It is a cutely-made simple decoding game. Has enough content, nice sounds, amazingly nice artworks, and good excerpts from various genres and time periods of literary works. Pleasant and totally worth it.
Straight forward concept, but really well executed - looks good, music is good, and ciphers are varied and stay interesting. Really enjoyed it!
Players by region
Where this game's players are, estimated from review languages.
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