Buy This Book Is A Dungeon PC Key

Looking for a cheap This Book Is A Dungeon key? As of 21 Aug 2026 the cheapest key costs $0.17 at Difmark. We compare 20 offers from 20 stores, spanning $0.17 to $4.99. In keyshops the lowest price is $0.17, in official stores it starts at $0.50. With this many sellers the gap between the extremes is often several times over, so picking the store matters more here than waiting for a sale. The price ranks among the lowest we have recorded, cheaper on only 12% of days with data. On PC you buy a key that you activate in Steam or another client, and this is the widest market we track, with more than a quarter of games carrying a keyshop offer.

Release: 09 Oct 2015
Nathan Meunier
Metacritic:
tbd tbd
Steam:
Mostly Positive (186)
Buy in Official Store:
-89%
$0.50
Buy in Keyshops:
-96%
$0.17
In keyshops, the price is close to its historical low.
See price history

Official Stores (9)

DRM:
Steam
Steam
Green Man Gaming
This Book is a Dungeon
Windows
4d ago
DRM:
Steam
Green Man Gaming
$4.99 $0.50
-89%
Gamesplanet FR
This Book Is A Dungeon
Windows
11h ago
DRM:
Steam
Gamesplanet FR
$4.67 ~$4.20
-10%
Gamesplanet DE
This Book Is A Dungeon
Windows
12h ago
DRM:
Steam
Gamesplanet DE
$4.67 ~$4.20
-10%
GamersGate
This Book Is A Dungeon
Windows
4d ago
DRM:
Steam
GamersGate
$4.99 $4.49
-10%
-10% with XDD10copy
-10% with XDD10copy
Playsum
This Book Is A Dungeon
Windows
5d ago
DRM:
Steam
Playsum
$4.99 $4.49
-10%
-10% with XDDEALScopy
-10% with XDDEALScopy
Gamesplanet US
This Book Is A Dungeon
Windows
1w ago
DRM:
Steam
Gamesplanet US
$4.99 $4.49
-10%
Gamesplanet UK
This Book Is A Dungeon
Windows
12h ago
DRM:
Steam
Gamesplanet UK
$5.44 ~$4.90
-9%

Keyshops (11)

DRM:
Steam
Steam
Difmark
This Book Is A Dungeon (PC)
Windows
3w ago
DRM:
Steam
Difmark
$4.99 ~$0.17
-96%
-15% with XDDEALScopy
-15% with XDDEALScopy
This Book Is A Dungeon
5.0
Windows
5h ago
DRM:
Steam
Yuplay
$4.99 $0.37
-92%
-3% with XD3OFFcopy
-3% with XD3OFFcopy
This Book Is A Dungeon Steam Key GLOBAL
5.0
Windows
22h ago
DRM:
Steam
Eneba
$4.67 ~$0.39
-91%
-10% with XDD10copy
-10% with XDD10copy
Gameseal
This Book Is A Dungeon (PC) Steam Key - GLOBAL
Windows
20h ago
DRM:
Steam
Gameseal
$0.69 ~$0.62
-10%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy
Loaded
This Book Is A Dungeon PC
Windows
7h ago
DRM:
Steam
Loaded
$4.99 $0.89
-82%
G2A
This Book Is A Dungeon Steam Key GLOBAL
Windows
5h ago
DRM:
Steam
G2A
$4.99 $1.21
-75%
-8% with G2A8XDDcopy
-8% with G2A8XDDcopy
CJS-CDKeys
This Book Is A Dungeon Steam Key (GLOBAL)
Windows
13h ago
DRM:
Steam
CJS-CDKeys
$5.44 ~$1.45
-73%

About This Book Is A Dungeon

This Book Is A Dungeon - about the game

This Book Is A Dungeon is a single-player indie adventure game that blends interactive fiction with dungeon crawling elements on PC. Built in Twine, it presents a grim horror experience where players navigate a narrative labyrinth filled with occult themes, grotesque encounters, and branching choices that shape the outcome.

Gameplay

The core loop revolves around reading descriptive text passages and selecting highlighted options to advance. Movement occurs by clicking directional choices provided by the character, while a map helps track progress through the dungeon layout. Light RPG systems add depth through combat encounters that include randomized elements and an inventory for managing items collected along the way.

Puzzles appear as cryptic and disturbing challenges that require careful reading and experimentation to solve. Death occurs frequently and in varied gruesome forms, serving as a deliberate design choice that encourages players to test different paths rather than avoid failure. Pixel art illustrations accompany key scenes, enhancing the visual contrast to the text-heavy format.

Inventory management and combat decisions feed into the overall progression, though the emphasis stays on story consequences over complex statistics. Multiple playthroughs reveal different branches, as a single run cannot cover every possible outcome or ending.

Game Modes

The game operates entirely as a single-player experience with no multiplayer components. Its structure centers on a linear yet highly branching narrative that players explore through repeated attempts. Experimentation with choices forms the primary challenge, as different decisions lead to unique sequences of events, encounters, and conclusions.

Replay value stems directly from the design intent to uncover all content across several sessions. No separate modes such as endless runs or competitive variants exist; the focus remains on the core adventure loop of navigation, puzzle-solving, and survival through the horror elements.

Story and Atmosphere

The narrative unfolds in a dark, horrific setting inspired by occult and Lovecraftian motifs. Themes include auto-cannibalism, demonic seduction, bloodfeasting worms, and ritualistic horrors that players encounter through text descriptions and pixel art depictions. The tone stays grim and macabre while varying enough to maintain engagement across explorations.

Player choices influence not only survival but also the mental and physical scenarios that develop. The story-driven approach rewards bold decisions, with the warning that the game will kill the character often as part of its intended challenge.

Is It Worth Playing?

Player reviews on the platform show Mostly Positive feedback, with 78 percent of 190 reviews rating it favorably. Reception highlights the engaging writing, cohesive atmosphere, and effective delivery of horror through interactive fiction. Some note frustration with navigation in the text-based maps, particularly for those less accustomed to the format.

The game suits players who enjoy dark horror themes, text adventures, and the process of experimenting with choices to reach different endings. It includes a bonus 40,000-word developer diary accessible from the main menu, providing insight into its creation as an interactive fiction experiment originally tied to a Kindle release.

Those sensitive to extreme content or preferring action-heavy gameplay may find it unsuitable. For fans of grim narrative experiences with light RPG touches, it delivers a complete, self-contained adventure that has remained available since its 2015 release without further seasonal updates.

Interface:
English

Age rating

Unavailable
Metacritic:
tbd tbd
Steam:
Mostly Positive (186)

Minimum:

  • Processor: Intel Pentium 4 or later
  • Memory: 512 MB RAM MB RAM

Recommended:

  • Processor: Intel Pentium 4 or later
  • Memory: 512 MB RAM MB RAM
Historical low
Price history from official stores
$0.00
Steam
6 months ago
Price history from keyshops
$0.17
Difmark
3 weeks ago

FAQ

9 questions

Before you start looking for a cheap This Book Is A Dungeon PC key, check the essentials. Developed by Nathan Meunier. Published by Plug In Digital. PC released date: 09 Oct 2015. Genres: Indie, Adventure. Categories: Family Sharing, Steam Trading Cards, Single-player.

Q

Where to buy a cheap This Book Is A Dungeon Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a This Book Is A Dungeon key for as low as $0.17. This deal is available at Difmark and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest This Book Is A Dungeon price on PC. Check the This Book Is A Dungeon price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the This Book Is A Dungeon Steam price is $4.99. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find This Book Is A Dungeon on sale even outside seasonal promotions. We currently detect 20 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, This Book Is A Dungeon is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

On days when both store types carried the game, the keyshop was cheaper by a median of 66%. We have recorded offers from 20 stores in total, and from 7 in the most recent reading. Half of all readings fell between $0.39 and $3.52. The spread between offers was wide: from $0.17 to $4.99.

Yes. This Book Is A Dungeon has an official page on the Steam Store. You can also buy a This Book Is A Dungeon Steam key from third-party sellers. Our price comparison currently includes 20 offers with Steam DRM. Pick one to ensure your This Book Is A Dungeon download happens on Valve's platform.

Not at this time. Valve marks This Book Is A Dungeon as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

According to our data This Book Is A Dungeon is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best This Book Is A Dungeon deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for This Book Is A Dungeon

1 Difmark Difmark Keyshop
-96% $0.17
2 Yuplay Yuplay Keyshop
-92% $0.37
3 Eneba Eneba Keyshop
-91% $0.39
-89% $0.50
5 Gameseal Gameseal Keyshop
-10% $0.62

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