- Indie
- RPG
- Simulation
Game
BOOK OF HOURS
Book of Hours is an elegant, melancholy, combat-free RPG set in an occult library, from the makers of BAFTA-nominated Cultist Simulator and the creator of Fallen London and Sunless Sea.
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?
About BOOK OF HOURS
- Released
- August 2023
- Developer
- Weather Factory
- Engine
- Unity
- Platforms
- Linux · PC (Microsoft Windows) · Mac
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Community AnnouncementsDeal Deals, demos and MOREHappy Thursday, everyone! BOOK OF HOURS and all DLC have all just been set to 60% off, their lowest discount ever. So if you've been meaning to host a salon for your occult friends, now's a good time to try HOUSE OF LIGHT. If you'd like some esoteric, melancholy ambience in real life, perhaps you fancy the OST. Or if you know someone who you think needs a strange, lonely strategy RPG about slow...
- Community AnnouncementsHush House, isometrifiedHey Librarians! I'm just posting a quick cross-post of some new isometric Hush House art from our upcoming game, Travelling At Night. I thought you'd enjoy it, so here it is in all its glory!Travelling is set in the same Secret Histories universe as BOOK OF HOURS. You'll be able to travel to Brancrug, explore the village and unearth some of Hush House's secrets (though not all of them, because...
- Community Announcements2026.1.f.3 FEATHER: Modding now available to everyoneFull modding support is now live. Many thanks to our curator-freelancer Chelnoque for making this happen. The Workshop is live here: DLL mods - that is mods which alter the base compiled code of the game - require you to subscribe to Ghirbi, the Gatekeeper. Ghirbi does nothing except indicate 'I have given permission for a mod to mess with the base game, not the content files'. Honestly, malwar...
- Community Announcements2026.1.f.3 FEATHER
- Community AnnouncementsBETA: 2026.1.f.1 'FEATHER'Welcome to 2026, everyone, The sum of the digits in this year is 10. The sum of digits in 10 is 1. There's probably something in that.New update (on the beta branch) for the new year. There's one big feature that I've already given away in the post headline, and a number of little ones.Full modding support. Find mods at had limited modding support - just locmods for community translations. Our...
- Community AnnouncementsThe advent calendar is live!"Reverend Timothy, having secured the attention of an attractive woman prepared to listen to his sermons, is now elucidating his previous *and* his next intended Christmas sermon. Coquille fastens her smile more charmingly on her face. Her eyes travel the room from end to end. There is no escape."Starting today, BOOK OF HOURS' in-game advent calendar is LIVE. 🎄From 1st - 25th December, present...
- Mods indexed
- 118
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most downloaded
Measured from the source's own counts, summed across every release.
- Memory Markers3.2k downloads
- C&H & TRN: Business Expansion & Delivery OptimizationC&H and TRN have grown tired of their original product lines — after all, selling only beef and potatoes is hardly enough to maintain the dignity of two limited companies. Following an overwhelming number of customer requests (okay, a handful), they've finally decided to clear out the dusty corne...2.6k downloads
- GHIRBI** OFFICIAL DEVELOPER MOD ** GHIRBI, the Gatekeeper, does nothing... except allow you to enable DLL mods which execute third-party code. Many of the more interesting mods on the Workshop need this to function. Why is this important? Because in theory, DLL mod authors could run malicious code on y...2.5k downloads
- 游戏内中文wiki这是基于另外一个mod进行的汉化，那个mod把游戏内的书籍阅读之后可能获得的技能，回忆添加到书籍上，把技能能够制作的道具添加到技能描述上以及一些食物制作的方法添价到食物描述上，这边仅进行AI汉化工作。2.0k downloads
- Memory MarkersYou can place Markers on books, comforts, things, and wall art by using said object with a non-lesson memory only, doing so will place a corresponding aspect on said object. You can do so many times on the same object, but only with different memories, adding a memory that the object is already m...1.8k downloads
- Oriflamme's BookSpend Trist with 6 pence to get Oriflamme's address. Then you can buy books form Oriflamme.1.6k downloads
- 噤声居屋boss直聘在甜骨头里放魂质直接出对应雇工，无需抽卡。 在原来放钱的地方放日记，如图片2 日记+铭晓=诗人（冬穹蛾） 日记+健康=逃犯（刃心鳞） 日记+刚毅=工程师 日记+晦暗=画家 日记+辩闻=修女 日记+脉律=音乐家 因为Boh自身的限制，旧存档需要先在甜骨头进行一次任意动作后才可起效1.5k downloads
- Find Assistants With Soul ElementsFind specific assistants by using an Element of the Soul with more than 24 pence(didn't cost) at the Sweet Bones. <Winter> for Elegiac Poet <Sky> for Travelling Musician <Rose> for Surrealist Painter <Forge> for Consulting Engineer <Grail> for Unusual Nun <Scale>for A Fugitive1.5k downloads
- Language TeacherSpend Trist with more than 32 pence at the Sweet Bones to find a Language teacher.1.5k downloads
- 更好的居屋Are you tired of waiting around in your House for time to pass and the seasons to change? Do you find the game's content dull and regret it? Subscribe to this mod! Use your botanical knowledge to tend to the flowers and plants, reducing the time spent on gathering, or treat the bees well and beco...1.4k downloads
- [Cheats]Cheating KeyConsider Hush House Key with Trist to obtaining 100 Lesson, 50 pounds and 10 gold.1.4k downloads
- ClockEach day spawns a verb showing exact time remaining for each part of the day. The verb stops and closes at the end of each day and the mod spawns a new one at the start time in synch with day cycle, otherwise the issue that makes the day and season timers diverge would make the mod useless for wh...1.3k downloads
- Level up a Skill with each Memory only once1.3k downloads
- Memory hint for book reading1.2k downloads
- Sweet Bones More Than Between the RibsThe Sweet Bones Inn has always been a good place to rest and a decent place to find odd jobs. But the landlady has been busy. The menu has changed. So has the back room. This mod adds the following: Six new types of regular work? — better pay, some side products, but longer hours. Batch rest — no...1.2k downloads
- BoH Korean Localization1.0k downloads
- Ordering QoL965 downloads
- More initial Soul Elements961 downloads
- Callidate InvocationWarning: This may significantly affect game balance. This mod enhances the aspects of most tools in the game, including those crafted by the Librarian. Now hammers finally remember they're blacksmiths instead of bookends, and wrenches have accepted they're not paperweights — every tool will bette...853 downloads
- Minor item changes793 downloads
- Steady DaybreakStops Daybreak from resetting your game speed to the slowest speed. Game speed will remain as whatever speed it was before. No more mashing Speed Up at dawn! At this time, this mod requires you to be on the beta branch!783 downloads
- Fabric ImprovementsYou can order Rags from C&H as well as different bolts of fabric from T.R.N.. Loom accepts Grail, Heart, Moth, Winter in its first 3 slots instead of Heart, Moth, Nectar, Rose. Its 4th slot can take ability and fabric while its 5th slot can take memory and fabric instead of each taking only fabri...737 downloads
- Memory skill and recipe spoilers (continued)Memory skill and recipe spoilers mod originally uploaded on Nexus, updated to load via games internal mod loader and rewritten to use $operations to improve crossmod compatibility. The contents added by the mod are for unmodded game only, if a mod changes how skills work or some other related mec...718 downloads
- Visitor Preference RemindersSimple mod that adds visitor preferences into their adress aspects. If enabled with Harvey Hattington mod, this mod needs to be placed below Harvey Hattington.703 downloads
Browse all 118 BOOK OF HOURS mods Sortable by downloads, rating and date.
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Why BOOK OF HOURS mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host BOOK OF HOURS mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.