The Game Census
This Book Is A Dungeon cover art

This Book Is A Dungeon

Nathan Meunier · Plug In Digital · 2015-10-09

Steam

AdventureIndie

Modes: Single player

Releases: Oct 09, 2015 (PC (Microsoft Windows))

Auto-cannibalism. Demonic Seduction. Occult Rituals. Bloodfeasting Worms. This dark, horrific Twine-based dungeon crawler pairs edgy interactive fiction with grisly pixel art and light RPG elements. Navigate this sprawling narrative-driven labyrinth bristling with otherworldly doom.

This Book Is A Dungeon is an Adventure, Indie game released in 2015, priced at $4.99, with an estimated 100,000 .. 200,000 owners and a Mostly Positive review sentiment (72% of 297 reviews).

0
playing now
72%
positive of 299 reviews
Mostly Positive
steam's rating (official)
100,000–200,000
owners (SteamSpy est.)
80/100
IGDB user rating (1 ratings)
pending
deck/linux tier (ProtonDB)
$4.99
steam price (US)

0 players in-game as of 2026-10-15 08:00 UTC (census sample)

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 7 reviews in the last 8 weeks (~1/week).
  • · Review velocity up 0% vs the prior 8 weeks.
  • · Top 24% of 29,024 Adventure games in the census by review count.
Estimated sales: 7.5k–18k copies

Review-multiple estimate from 299 total reviews — how this is computed.

All-time low: $0.36 at GameBillet (2025-06-03) · bundled 7×via IsThereAnyDeal

12-month high $4.99 · on sale 83 of 113 observed days (census price snapshots)

Review momentum

PositiveNegative
111120152026Week of 2015-10-01: 11 positiveWeek of 2015-10-01: 1 negativeWeek of 2015-11-01: 8 positiveWeek of 2015-11-01: 2 negativeWeek of 2015-12-01: 7 positiveWeek of 2016-03-01: 1 positiveWeek of 2016-05-01: 1 negativeWeek of 2016-06-01: 2 positiveWeek of 2016-06-01: 1 negativeWeek of 2016-07-01: 1 positiveWeek of 2016-08-01: 5 positiveWeek of 2016-08-01: 1 negativeWeek of 2016-09-01: 3 positiveWeek of 2016-10-01: 4 positiveWeek of 2016-10-01: 1 negativeWeek of 2016-11-01: 3 positiveWeek of 2016-12-01: 4 positiveWeek of 2017-01-01: 1 positiveWeek of 2017-01-01: 1 negativeWeek of 2017-03-01: 1 positiveWeek of 2017-05-01: 1 positiveWeek of 2017-05-01: 1 negativeWeek of 2017-06-01: 5 positiveWeek of 2017-06-01: 2 negativeWeek of 2017-07-01: 2 positiveWeek of 2017-08-01: 2 positiveWeek of 2017-08-01: 1 negativeWeek of 2017-09-01: 1 positiveWeek of 2017-10-01: 1 positiveWeek of 2017-11-01: 6 positiveWeek of 2017-12-01: 3 positiveWeek of 2018-01-01: 4 positiveWeek of 2018-01-01: 1 negativeWeek of 2018-02-01: 1 positiveWeek of 2018-02-01: 2 negativeWeek of 2018-04-01: 3 positiveWeek of 2018-04-01: 1 negativeWeek of 2018-05-01: 1 positiveWeek of 2018-06-01: 1 positiveWeek of 2018-07-01: 3 positiveWeek of 2018-07-01: 1 negativeWeek of 2018-08-01: 1 positiveWeek of 2018-09-01: 1 positiveWeek of 2018-09-01: 1 negativeWeek of 2018-10-01: 1 positiveWeek of 2018-11-01: 1 positiveWeek of 2018-11-01: 1 negativeWeek of 2018-12-01: 2 negativeWeek of 2019-01-01: 2 positiveWeek of 2019-01-01: 1 negativeWeek of 2019-05-01: 1 positiveWeek of 2019-10-01: 1 positiveWeek of 2019-11-01: 2 positiveWeek of 2019-12-01: 1 positiveWeek of 2020-01-01: 2 positiveWeek of 2020-02-01: 2 positiveWeek of 2020-04-01: 1 positiveWeek of 2020-04-01: 1 negativeWeek of 2020-05-01: 1 positiveWeek of 2020-06-01: 2 positiveWeek of 2020-06-01: 1 negativeWeek of 2020-07-01: 1 positiveWeek of 2020-07-01: 2 negativeWeek of 2020-10-01: 1 positiveWeek of 2020-11-01: 1 negativeWeek of 2020-12-01: 1 positiveWeek of 2020-12-01: 2 negativeWeek of 2021-01-01: 1 positiveWeek of 2021-02-01: 1 positiveWeek of 2021-03-01: 3 positiveWeek of 2021-03-01: 1 negativeWeek of 2021-04-01: 1 positiveWeek of 2021-06-01: 1 negativeWeek of 2021-09-01: 1 positiveWeek of 2021-10-01: 1 negativeWeek of 2021-11-01: 1 positiveWeek of 2021-11-01: 2 negativeWeek of 2022-01-01: 3 positiveWeek of 2022-02-01: 1 positiveWeek of 2022-04-01: 3 positiveWeek of 2022-05-01: 1 positiveWeek of 2022-05-01: 1 negativeWeek of 2022-06-01: 5 positiveWeek of 2022-07-01: 2 positiveWeek of 2022-07-01: 2 negativeWeek of 2022-08-01: 3 positiveWeek of 2022-08-01: 1 negativeWeek of 2022-09-01: 1 positiveWeek of 2022-09-01: 1 negativeWeek of 2022-11-01: 2 positiveWeek of 2023-01-01: 2 positiveWeek of 2023-01-01: 2 negativeWeek of 2023-02-01: 1 negativeWeek of 2023-03-01: 1 positiveWeek of 2023-03-01: 1 negativeWeek of 2023-05-01: 1 positiveWeek of 2023-06-01: 4 positiveWeek of 2023-06-01: 1 negativeWeek of 2023-08-01: 1 positiveWeek of 2023-09-01: 1 positiveWeek of 2024-02-01: 2 positiveWeek of 2024-03-01: 1 positiveWeek of 2024-04-01: 1 positiveWeek of 2024-08-01: 1 positiveWeek of 2024-09-01: 2 positiveWeek of 2025-01-01: 2 positiveWeek of 2025-04-01: 1 positiveWeek of 2025-09-01: 1 positiveWeek of 2026-03-01: 3 positiveWeek of 2026-04-01: 1 positiveWeek of 2026-06-01: 2 positiveWeek of 2026-07-01: 1 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

302026-09-15 17:00 — 1 players2026-09-17 01:00 — 0 players2026-09-18 09:00 — 1 players2026-09-19 16:00 — 0 players2026-09-21 00:00 — 2 players2026-09-22 07:00 — 1 players2026-09-23 15:00 — 1 players2026-09-24 22:00 — 1 players2026-09-26 06:00 — 2 players2026-09-27 13:00 — 0 players2026-09-28 21:00 — 1 players2026-09-30 04:00 — 0 players2026-10-01 12:00 — 0 players2026-10-02 19:00 — 0 players2026-10-04 03:00 — 3 players2026-10-05 11:00 — 0 players2026-10-06 19:00 — 0 players2026-10-08 02:00 — 1 players2026-10-09 10:00 — 0 players2026-10-10 17:00 — 2 players2026-10-12 01:00 — 0 players2026-10-13 08:00 — 1 players2026-10-14 16:00 — 0 players2026-10-15 08:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).
480Oct 2015Aug 2023Oct 2015 — avg 2 · peak 12Jan 2016 — avg 1 · peak 5Apr 2016 — avg 0 · peak 3Jul 2016 — avg 9 · peak 271Oct 2016 — avg 3 · peak 14Jan 2017 — avg 1 · peak 9Apr 2017 — avg 1 · peak 7Jul 2017 — avg 1 · peak 6Oct 2017 — avg 1 · peak 8Jan 2018 — avg 1 · peak 12Apr 2018 — avg 1 · peak 33Jul 2018 — avg 0 · peak 4Oct 2018 — avg 0 · peak 3Jan 2019 — avg 0 · peak 2Apr 2019 — avg 0 · peak 2Jul 2019 — avg 1 · peak 7Nov 2019 — avg 0 · peak 2Apr 2020 — avg 1 · peak 3Jul 2020 — avg 1 · peak 4Dec 2020 — avg 1 · peak 5Apr 2021 — avg 1 · peak 4Dec 2021 — avg 4 · peak 53Apr 2022 — avg 47 · peak 480Jul 2022 — avg 37 · peak 766Oct 2022 — avg 4 · peak 89Jan 2023 — avg 11 · peak 436Apr 2023 — avg 11 · peak 248Jul 2023 — avg 33 · peak 1,151Aug 2023 — avg 16 · peak 56
Monthly average players (source: steamcharts.com) — history via steamcharts.com; live census sampling since Aug 2026.

Price history

$5.99$0.362015-10-092026-08-202015-10-09 — best price $4.012016-05-02 — best price $5.992016-12-22 — best price $0.592017-06-23 — best price $0.492018-05-09 — best price $0.492019-11-01 — best price $4.992020-06-09 — best price $4.992020-08-12 — best price $4.992020-10-16 — best price $4.492020-12-17 — best price $0.492021-02-15 — best price $4.992021-04-16 — best price $4.992021-05-23 — best price $4.392021-08-06 — best price $4.992021-12-13 — best price $0.452022-03-04 — best price $4.992022-07-11 — best price $0.372022-10-31 — best price $4.992023-01-17 — best price $0.492023-04-11 — best price $3.892023-06-23 — best price $0.492023-08-25 — best price $4.992023-11-06 — best price $0.372024-01-29 — best price $3.892024-04-12 — best price $0.402024-07-22 — best price $3.592024-10-16 — best price $4.992025-01-18 — best price $0.792025-04-04 — best price $0.392025-07-02 — best price $0.502025-09-22 — best price $4.992025-12-04 — best price $0.792026-02-16 — best price $3.592026-04-16 — best price $4.992026-07-02 — best price $0.502026-08-20 — best price $4.00
Lowest recorded price across tracked stores, per day (census snapshots).

Details

WindowsSingle-playerSteam Trading CardsFamily Sharing

1 supported languages: English

Player tags

RPGIndieHorrorAdventureText-BasedLovecraftianPixel GraphicsDungeon CrawlerInteractive FictionChoose Your Own Adventure

Census log

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

Players also track

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Similarity via IGDB.

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