Auto-cannibalism. Demonic Seduction. Occult Rituals. Bloodfeasting Worms. This Book Is A Dungeon has it all and more. This dark, horrific Twine-based dungeon crawler pairs edgy interactive fiction with grisly pixel art and light RPG elements. Prepare to be disturbed, titillated, and savaged by unholy denizens aplenty in your quest to navigate this sprawling narrative-driven labyrinth bristling with otherworldly doom.
Warning: this game will kill you. often.
Part of the intended challenge is in experimenting to see where different paths and choices lead you. It's impossible to experience all of the content in a single runthrough. Experiment, be bold, and uncover your fate, wherever it may lead!
Features:
Experience a grim story-driven horror adventure
Solve cryptic and disturbing puzzles
Die in dozens of horrible ways
Enjoy light RPG elements, including combat and inventory
Discover multiple endings
BONUS: 40,000 word game dev diary
This game is not for the squeamish or faint of heart.
Bonus game dev diary ebook
This Book Is A Dungeon was originally created as an interactive fiction and self-publishing experiment. It was initially launched as a game inside a Kindle book that served as a developer diary documenting the entire process for creating the game from start to finish. As part of the Steam Edition, you can access a free download link for a PDF version of the dev diary within the main menu.
windows Minimum
OS: Windows XP Service Pack 2+
Processor: Intel Pentium 4 or later
Memory: 512 MB RAM MB RAM
To activate the game, you need a Steam Account
Login or register at the official Steam Website and download Steam client
Install and start application, login with your Account name and Password
Click the Games Menu.
Choose Activate a Product on Steam...
Follow the onscreen instructions to complete the process
After the successful code verification, go to the "MY GAMES" tab and start downloading.
News & Updates
2026-04-15
Complete Our Side Quest and Win
As you probably know, in a huge variety of game titles there are usually a lot of mainline task objectives, but very often there are multiple side quests that would advance you further in the gameplay. This is exactly why we decided to run a Side Quest promotion on our YUPLAY site. In order to participate in it you have to make an order over 20€ between 17.04.2026 18:10 CET and 20.04.2026 02:00 CET, and you will get a 1€ voucher for next purchase…
The Easter season is here and since we like this part of the year so much, we have made sure to have prepared a special YUPLAY promotional campaign for those of you that are ready to go into the Raid Party and grab a FREE gaming title. All you have to do is make an order above 20€ between 02.04.2026 15:00 CET and 08.04.2026 15:00 CET, and you will get a FREE game as ab Easter present from us…