The Game Census
BOOK OF HOURS cover art

BOOK OF HOURS

Weather Factory · 2023-08-17

SteamGOG

IndieRPGSimulation

Modes: Single player · Perspectives: Side view

Releases: Aug 17, 2023 (PC (Microsoft Windows)), Aug 17, 2023 (Mac), Aug 17, 2023 (Linux)

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?

BOOK OF HOURS is a 2023 Indie RPG Simulation game priced at $24.99, with Very Positive (89% of 4472 reviews) sentiment and an owner estimate of 200,000 .. 500,000.

245
playing now
89%
positive of 4.5k reviews
Very Positive
steam's rating (official)
200,000–500,000
owners (SteamSpy est.)
0
twitch viewers (latest)
49
Nexus mods (19k downloads)
platinum
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
$24.99
steam price (US)

245 players in-game as of 2026-10-14 12:00 UTC (census sample)

Book of Hours is a narrative RPG developed and published by indie studio Weather Factory. It was released for Linux, macOS, and Windows computer systems on 17 August 2023.

Trailer

BOOK OF HOURS trailer thumbnail

BOOK OF HOURS launch trailer: Welcome to Hush House

≈1,000,000 YouTube results for this game's trailer search

Health check

Healthy
  • · 245 players in-game at the last census sample.
  • · 400 reviews in the last 8 weeks (~50/week).
  • · Review velocity down 9% vs the prior 8 weeks.
  • · Current weekly pace is under 5% of the all-time peak week (1,375 reviews).
  • · Top 4% of 49,587 Indie games in the census by review count.

Health tier since 2026-08-28

Estimated sales: 90k–203k copies

Review-multiple estimate from 4,519 total reviews — how this is computed.

Current store prices

GOG$24.99

Deal snapshots via CheapShark, refreshed daily.

All-time low: $9.99 at Steam (2026-07-16) · bundled 4×via IsThereAnyDeal

12-month high $24.99 · on sale 13 of 73 observed days · $15.00 above the all-time low (census price snapshots)

Review momentum

PositiveNegative
1.3k1.3k20232026Week of 2023-08-01: 1,292 positiveWeek of 2023-08-01: 83 negativeWeek of 2023-09-01: 248 positiveWeek of 2023-09-01: 25 negativeWeek of 2023-10-01: 112 positiveWeek of 2023-10-01: 13 negativeWeek of 2023-11-01: 296 positiveWeek of 2023-11-01: 18 negativeWeek of 2023-12-01: 64 positiveWeek of 2023-12-01: 11 negativeWeek of 2024-01-01: 68 positiveWeek of 2024-01-01: 6 negativeWeek of 2024-02-01: 46 positiveWeek of 2024-02-01: 8 negativeWeek of 2024-03-01: 104 positiveWeek of 2024-03-01: 7 negativeWeek of 2024-04-01: 96 positiveWeek of 2024-04-01: 11 negativeWeek of 2024-05-01: 43 positiveWeek of 2024-05-01: 6 negativeWeek of 2024-06-01: 75 positiveWeek of 2024-06-01: 4 negativeWeek of 2024-07-01: 88 positiveWeek of 2024-07-01: 8 negativeWeek of 2024-08-01: 152 positiveWeek of 2024-08-01: 103 negativeWeek of 2024-09-01: 335 positiveWeek of 2024-09-01: 283 negativeWeek of 2024-10-01: 113 positiveWeek of 2024-10-01: 20 negativeWeek of 2024-11-01: 83 positiveWeek of 2024-11-01: 8 negativeWeek of 2024-12-01: 71 positiveWeek of 2024-12-01: 17 negativeWeek of 2025-01-01: 59 positiveWeek of 2025-01-01: 12 negativeWeek of 2025-02-01: 43 positiveWeek of 2025-02-01: 8 negativeWeek of 2025-03-01: 52 positiveWeek of 2025-03-01: 5 negativeWeek of 2025-04-01: 37 positiveWeek of 2025-04-01: 8 negativeWeek of 2025-05-01: 41 positiveWeek of 2025-05-01: 3 negativeWeek of 2025-06-01: 52 positiveWeek of 2025-06-01: 16 negativeWeek of 2025-07-01: 50 positiveWeek of 2025-07-01: 5 negativeWeek of 2025-08-01: 40 positiveWeek of 2025-08-01: 3 negativeWeek of 2025-09-01: 30 positiveWeek of 2025-09-01: 12 negativeWeek of 2025-10-01: 31 positiveWeek of 2025-10-01: 9 negativeWeek of 2025-11-01: 89 positiveWeek of 2025-11-01: 13 negativeWeek of 2025-12-01: 45 positiveWeek of 2025-12-01: 11 negativeWeek of 2026-01-01: 45 positiveWeek of 2026-01-01: 8 negativeWeek of 2026-02-01: 34 positiveWeek of 2026-02-01: 11 negativeWeek of 2026-03-01: 29 positiveWeek of 2026-03-01: 4 negativeWeek of 2026-04-01: 22 positiveWeek of 2026-04-01: 2 negativeWeek of 2026-05-01: 59 positiveWeek of 2026-05-01: 12 negativeWeek of 2026-06-01: 43 positiveWeek of 2026-06-01: 9 negativeWeek of 2026-07-01: 53 positiveWeek of 2026-07-01: 13 negativeWeek of 2026-08-01: 44 positiveWeek of 2026-08-01: 9 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

3421182026-09-15 13:00 — 214 players2026-09-16 22:00 — 144 players2026-09-18 05:00 — 141 players2026-09-19 13:00 — 228 players2026-09-20 20:00 — 202 players2026-09-22 04:00 — 149 players2026-09-23 11:00 — 130 players2026-09-24 19:00 — 158 players2026-09-26 02:00 — 168 players2026-09-27 10:00 — 164 players2026-09-28 17:00 — 161 players2026-09-30 01:00 — 133 players2026-10-01 08:00 — 178 players2026-10-02 16:00 — 240 players2026-10-04 00:00 — 182 players2026-10-05 08:00 — 227 players2026-10-06 15:00 — 300 players2026-10-07 23:00 — 148 players2026-10-09 06:00 — 199 players2026-10-10 14:00 — 318 players2026-10-11 21:00 — 180 players2026-10-13 05:00 — 184 players2026-10-14 12:00 — 245 players
Concurrent players, hourly average, last 30 days (census samples).
1.4k133Aug 2023Aug 2026Aug 2023 — avg 1,422 · peak 2,335Sep 2023 — avg 533 · peak 1,238Oct 2023 — avg 234 · peak 526Nov 2023 — avg 201 · peak 435Dec 2023 — avg 207 · peak 416Jan 2024 — avg 184 · peak 406Feb 2024 — avg 133 · peak 247Mar 2024 — avg 219 · peak 624Apr 2024 — avg 267 · peak 627May 2024 — avg 172 · peak 313Jun 2024 — avg 189 · peak 335Jul 2024 — avg 211 · peak 317Aug 2024 — avg 212 · peak 744Sep 2024 — avg 415 · peak 1,372Oct 2024 — avg 512 · peak 1,117Nov 2024 — avg 241 · peak 501Dec 2024 — avg 294 · peak 508Jan 2025 — avg 230 · peak 457Feb 2025 — avg 202 · peak 406Mar 2025 — avg 201 · peak 349Apr 2025 — avg 160 · peak 276May 2025 — avg 166 · peak 275Jun 2025 — avg 192 · peak 376Jul 2025 — avg 181 · peak 312Aug 2025 — avg 170 · peak 281Sep 2025 — avg 144 · peak 284Oct 2025 — avg 177 · peak 325Nov 2025 — avg 208 · peak 440Dec 2025 — avg 224 · peak 398Jan 2026 — avg 216 · peak 394Feb 2026 — avg 194 · peak 318Mar 2026 — avg 158 · peak 271Apr 2026 — avg 146 · peak 229May 2026 — avg 253 · peak 519Jun 2026 — avg 186 · peak 325Jul 2026 — avg 271 · peak 545Aug 2026 — avg 229 · peak 383
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$24.99$9.992023-08-242026-10-142023-08-24 — best price $24.992023-11-17 — best price $24.992023-12-13 — best price $22.492024-01-25 — best price $22.492024-02-28 — best price $22.492024-03-21 — best price $24.992024-04-11 — best price $22.492024-05-30 — best price $21.242024-06-19 — best price $19.992024-07-22 — best price $19.992024-08-07 — best price $24.992024-09-25 — best price $19.992024-10-28 — best price $19.992024-12-04 — best price $24.992025-02-05 — best price $24.992025-02-24 — best price $24.992025-04-14 — best price $24.992025-06-15 — best price $24.992025-08-26 — best price $17.492025-09-29 — best price $14.992025-11-25 — best price $17.492026-01-03 — best price $24.992026-02-04 — best price $24.992026-03-03 — best price $24.992026-05-04 — best price $13.742026-07-09 — best price $24.992026-08-29 — best price $24.992026-09-02 — best price $24.992026-09-06 — best price $24.992026-09-10 — best price $24.992026-09-14 — best price $24.992026-09-18 — best price $24.992026-09-22 — best price $24.992026-09-26 — best price $24.992026-09-30 — best price $24.992026-10-04 — best price $24.992026-10-08 — best price $24.992026-10-12 — best price $24.992026-10-14 — best price $24.99
Lowest recorded price across tracked stores, per day (census snapshots).

Attention

70112026-08-14 — 37 pageviews2026-08-16 — 37 pageviews2026-08-18 — 42 pageviews2026-08-20 — 33 pageviews2026-08-22 — 34 pageviews2026-08-24 — 15 pageviews2026-08-26 — 25 pageviews2026-08-28 — 19 pageviews2026-08-30 — 20 pageviews2026-09-01 — 21 pageviews2026-09-03 — 31 pageviews2026-09-05 — 37 pageviews2026-09-07 — 26 pageviews2026-09-09 — 23 pageviews2026-09-11 — 18 pageviews2026-09-13 — 18 pageviews2026-09-15 — 13 pageviews2026-09-17 — 29 pageviews2026-09-19 — 15 pageviews2026-09-21 — 27 pageviews2026-09-23 — 32 pageviews2026-09-25 — 15 pageviews2026-09-27 — 27 pageviews2026-09-29 — 25 pageviews2026-10-01 — 30 pageviews2026-10-03 — 20 pageviews2026-10-05 — 18 pageviews2026-10-07 — 29 pageviews2026-10-08 — 16 pageviews
Daily Wikipedia pageviews (attention proxy, census-recorded).

Twitch viewers

602026-10-05 07:34 — 0 viewers2026-10-05 11:34 — 0 viewers2026-10-05 13:34 — 0 viewers2026-10-05 15:34 — 0 viewers2026-10-05 17:34 — 0 viewers2026-10-05 19:34 — 1 viewers2026-10-05 21:34 — 3 viewers2026-10-07 06:34 — 0 viewers2026-10-07 08:34 — 0 viewers2026-10-07 10:34 — 0 viewers2026-10-07 12:34 — 0 viewers2026-10-07 14:34 — 0 viewers2026-10-07 16:34 — 0 viewers2026-10-07 18:34 — 0 viewers2026-10-07 20:34 — 4 viewers2026-10-08 15:34 — 0 viewers2026-10-08 17:34 — 0 viewers2026-10-08 19:34 — 0 viewers2026-10-08 21:34 — 0 viewers2026-10-08 23:34 — 2 viewers2026-10-09 01:34 — 1 viewers2026-10-09 03:34 — 0 viewers2026-10-09 05:34 — 0 viewers2026-10-11 05:34 — 0 viewers2026-10-12 15:34 — 0 viewers2026-10-12 17:34 — 0 viewers2026-10-12 19:34 — 0 viewers2026-10-12 21:34 — 0 viewers2026-10-12 23:34 — 0 viewers2026-10-13 01:34 — 0 viewers2026-10-13 03:34 — 0 viewers2026-10-14 13:34 — 0 viewers2026-10-14 15:34 — 0 viewers2026-10-14 17:34 — 0 viewers2026-10-14 19:34 — 5 viewers2026-10-14 21:34 — 0 viewers
Hourly Twitch viewers (census snapshots).

Completion

60+
achievements tracked
89.3%
earned "In the Isle's Shadow"
11%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsmacOSLinuxSingle-playerSteam AchievementsSteam Trading CardsAdjustable Text SizeColor AlternativesCustom Volume ControlsMouse Only OptionPlayable without Timed InputSave AnytimeSteam Cloud2 DLC

4 supported languages: English, Russian, Simplified Chinese, Japanese

Post-launch support: 2 DLC released, first 2023-12-15, latest 2024-09-26 (Steam store data)

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)2,8070%95

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

Player tags

RPGCraftingLife SimStrategyTabletopCard GameLore-RichManagementSimulationExploration

Census log

Computed from census-recorded observations only — dates are observation dates.

Recent updates

Players also track

Star Control®: OriginsSurvivalistForgotton AnneWeapon Shop FantasyEternity: The Last UnicornUnbound: Worlds ApartCHANGE: A Homeless Survival ExperienceTorchlight III

Similarity via IGDB.

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