
Restore a crumbling occult library by a winter sea. Build the world’s foremost collection of grimoires and arcana. Master the invisible arts. BOOK OF HOURS is a narrative crafting RPG set in a 1930s world of hidden gods and secret histories. What sort of Librarian will you choose to be?
Modeled estimate, not a reported figure. How we estimate →
Prices
The United States storefront in every case, so this compares stores and not countries.
Prices
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
Every market we collect.
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): 56.83/day in the week to Jul 17 → 3.29/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 23 chart moves that followed a price cut of more than 20% went a median of 14 places towards #1, and the 2,515 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




Sums Steam only; GOG publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $24.99 | 4.5Kreviews | 89% | — | $4M |
| $24.99 | 72ratings | 88% | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Updates
Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Engagement
Reviews
Themes across 876 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
回忆褪色,灵魂焕新,看看天气,再挑一本适合今天看的书
I have heard that this game is easier if you've played the developer's other games. I had to use a guide to help with the beginning, but I was quickly sucked in. The game is super fun, super sneaky (in a good way), and the lore is EPIC. If you (like me) dig lore and games that don't require a lot of button mashing, this one is definitely for you. It is truly worth the effort.
一个玩了之后想当图书管理员的游戏。和密教模拟器不一样,司辰之书的故事缓慢安宁,在这里可以犯错,在这里永远有重来的机会,在这里不需要着急,时间缓慢的流淌,阅读历史,然后写下新的历史。这是一款像生命本身的游戏。
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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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, Russian, Simplified Chinese, Japanese
Hours played at review time, across 878 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
太好玩了!喜欢密教世界观的有福啦!
The UI holds this game back, on Steam Deck it's insufferable to play.
很有趣的游戏,想要爽玩有一定门槛。 最初自己玩会有大概几小时的试错期,然后会有十几个小时是跟着机制在忙着瞎玩,接下来会体会到游戏内容本身的趣味性。 几种语言学的变体很有意思。单说游戏内体验,并没有游戏外考据的乐趣高。 开书开房间的时候,找匹配的道具会比较眼花缭乱,当休闲方式来整理会比较好,如果想尽快推进,只玩过二十多小时的时候,体感是进度缓慢,找不到游戏大神们速通的诀窍,只能自己慢慢摸索。
Steep learning curve at first but ultimately worth it.
.
ITS JUST ABSOLUTELY PEAK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I have been sleeping on this for awhile, but the DLC brought me back to full attention! (I have come nowhere near it yet but the idea has me excited to power toward it). I only have one real complaint, and that's that I wish I could somehow get it to stop playing silence. This soundtrack is so epic it is immersion breaking for me. Of course there's always the chance this is possible and I just couldn't be bothered to stop playing to figure it out. lmao 10/10 stars for lore reveal and many run potential!
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
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.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $8.4M | 14.2K | 80% | $19.99 | |
| $290.6K | 808 | 71% | $14.99 | |
| $90.1K | 216 | 74% | $18.99 | |
| $32.4K | 89 | 82% | $11.99 | |
| $1.2K | 6 | 83% | $5.00 | |
| — | 0 | — | — |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $4M | 8.2K | 93% | $19.99 | |
| $4M | 4.1K | 79% | $24.99 | |
| $4M | 8.1K | 89% | $29.99 | |
| $4M | 19.1K | 82% | $9.99 | |
| $4M | 8.2K | 95% | $14.99 | |
| $4M | 11.6K | 97% | $14.99 |