PC Steam $29.99 Region US
Games Indie Library Of Ruina
Library Of Ruina: header artwork
Indie · ProjectMoon

Library Of Ruina

Library Of Ruina
Steam Deck Playable Windows ESRB · Mature 17+
Very Positive · 94% of 43,164
DeveloperProjectMoon
GenreIndie
ControllerPartial
Wait Price verdict · US updated 18 hr. ago

The current price is 100% of the way from its all-time low to full price. Seasonal sales have priced it lower.

Why this verdict
Price position between all-time low and full price 100%
All-time low $10.19 · 20d ago
Player reviews 94% positive of 43,164
Quality score 94/100
Value score 0/100

Offers

Official store prices and labeled keyshop comparisons

Official stores (2)
Steam
checked 18 hr. ago Lowest price
Store low $10.19 · Lowest across stores $10.19
Steam, official store, $29.99
$29.99 Buy on Steam
Xbox
checked 8 hr. ago
Store low $29.99 · Lowest across stores $10.19
Xbox, official store, $29.99
$29.99 Buy on Xbox
Direct store link. Payment stays with the store.
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Price history

Accepted price history and recorded lows

Historical lows
All-time low ATL $10.19 2026-07-03
3-month low $10.19
12-month low $10.19
Current $29.99
Sale cadence
Recorded sale starts 1
Since the latest sale started 19.4 days
Price events From the accepted price history
Jul 16, 2026
Sale ended · back to $29.99
Jul 3, 2026
New all-time low $10.19

Editions

Explicitly grouped editions, with the cheapest offer tracked for each

Purchase options

DLC (2)

Add-on content for this game

About this game

What this game is, in the developer's words

"May you find your book in this place." Combat between the guests and the librarians breaks out as if it were on a stage. Defeated guests turn into books, and the Library grows onward. And eventually, get your hands on… The one singular, perfect book.



“May you find your book in this place.”



Become the owner of the Library and receive your guests.

Your librarians will fight for the Library.

Combat between the guests and the librarians breaks out as if it were on a stage.

Defeated guests turn into books, and the Library grows onward.

A good book will allow you to invite new guests with greater secrets.

Amass a collection of books and explore the secrets of the City.

And eventually, get your hands on…

The one singular, perfect book.



[Introduction to the Game]


“May you find your book in this place.”

Become the owner of the Library and receive your guests.

Your librarians will fight for the Library.
Combat between the guests and the librarians breaks out as if it were on a stage.
Defeated guests turn into books, and the Library grows onward.

A good book will allow you to invite new guests with greater secrets.
Amass a collection of books and explore the secrets of the City.

And eventually, get your hands on…
The one singular, perfect book.


[A Library Battle Simulation]


Library of Ruina is a game that uses the concept of a “Library Battle Simulation”.
You will invite guests to the Library and engage in combat with them to gain 'Books' with their stories.

Battles are played with the 'Librarians' and the 'Guests' using cards and dice.
You can plan against the guests’ moves by looking at the cards they will use and select the most optimal card to oppose them.

When combat begins, how the dice from your chosen card fall will determine victory or defeat in the struggle.
However, the outcome of the dice is not simply determined by pure luck.
Certain effects and variables will shift the outcome of the dice for and against your favor.

Be sure to carefully choose which cards you utilize to win the battle with your guests.
Behold the outcome of your choices and how luck unfolds as your librarians and guests skirmish.
You can go through an exhilarating experience, putting it all on the line with thrills just like betting.


[Conflicts that Build Emotion]


Confrontation in the Library is not just about killing your enemies, it is about heightening emotions.
The emotions of the librarians and guests rise as the battle progresses, and as it grows fiercer and comes to a head, they will surge.

Depending on your librarian's feelings, positive outcomes or powerful effects with penalties can occur.
In addition, as the emotional tension of the guests grows, the difficulty of combat increases, yet at the same time, rarer books can be acquired.
Furthermore, dialogue can appear depending on the situation of the battle and will make one’s viewing experience of the match unfolding even more enjoyable.


[Books Can Be Anything]


A guest who dies in the Library will turn into a book.
These books can be a librarian's body, materials to grow the Library, or new cards for battle.
You can also use books as the parts of an invitation to bring forth another guest.

Invite different guests to acquire various books, then utilize them accordingly.
How you make use of your collection to grow the Library is up to you.


[The Story of the City and the Library]


In Library of Ruina, you will be witness to the stories of Angela, the Sephirot, and Roland following the ending of Lobotomy Corporation.
You will also watch various events occurring around the huge city in which the Library is located.

Accumulate books to grow your Library and librarians, and invite more powerful guests to gain better books.
From lowly canards to urban legends and beyond...
Throughout the game, you will gradually become familiar with the story of the City.

May you find your book in this place…

Media

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Latest news

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Library Of Ruina price history and current deals

Library Of Ruina for PC currently sells from $29.99 at authorized stores. Its all-time low is $10.19, set on 2026-07-03.

Compare Library Of Ruina editions

Library Of Ruina comes in 2 editions: Library Of Ruina, Library Of Ruina. The edition list shows what each one includes.

Library Of Ruina reviews, playtime, and age rating

43,164 people have reviewed Library Of Ruina. 94% are positive. Steam calls that Very Positive. ESRB rates it Mature 17+, flagged for Violence, Blood and Gore, Strong Language.

Frequently asked questions

Answered from this game's own data. Where I have none, I say nothing.

How does the current Library Of Ruina price compare?
The price verdict is wait. The current price is 100% of the way from its all-time low to full price. Seasonal sales have priced it lower.
How do the Library Of Ruina editions compare?
Library Of Ruina offers Library Of Ruina, Library Of Ruina. The standard edition contains the base game. Larger editions can include expansions.
How does $29.99 compare with the Library Of Ruina price history?
$29.99 is 100% of the way from the all-time low of $10.19 to the full price. A lower price is recorded in the history.
Which stores list Library Of Ruina?
Library Of Ruina is tracked at Steam, Xbox. This section lists authorized stores and links to their store pages.
Where can I buy Library Of Ruina cheap?
From $29.99 at Steam right now. Its recorded low is $10.19, set on 2026-07-03. Today's price sits 100% of the way from that low to full price.
Is Library Of Ruina worth playing?
43,164 people have reviewed Library Of Ruina. 94% are positive. Steam calls that Very Positive.
What age rating does Library Of Ruina have?
Library Of Ruina is rated Brazil 14+, ESRB Mature 17+, Indonesia 18+, South Korea 18+, Germany (Steam rating) 16+ across boards. The ESRB rating flags Violence, Blood and Gore, Strong Language.
Scores
Steam reviews Very Positive · 94%
94% positive of 43,164
Media (8)
Tech
Steam DeckPlayable
SteamOSSupported
ControllerPartial
Requirements
System requirements platform
Minimum
Minimum:
  • Requires a 64-bit processor and operating system
  • OS *: Windows 7
  • Processor: Intel Core i5
  • Memory: 8 GB RAM
  • Graphics: GeForce GTX 560+
  • DirectX: Version 10
  • Storage: 10 GB available space
Recommended
Recommended:
  • Requires a 64-bit processor and operating system
  • OS *: Windows 7
  • Processor: Intel Core i5
  • Memory: 8 GB RAM
  • Graphics: GeForce GTX 560+
  • Storage: 10 GB available space
Minimum
Minimum:
    Recommended
    Recommended:
      Minimum
      Minimum:
        Recommended
        Recommended:
          Achievements (76)
          Two Shakes of a Rat’s Tail
          Two Shakes of a Rat’s Tail 86.9%

          Complete your first reception. You’ve made your baby steps!

          Extraction of Secret Worlds
          Extraction of Secret Worlds 84.3%

          Burn a book for the first time.

          Whoopsie-daisy!
          Whoopsie-daisy! 80.6%

          Enter a combat phase without slotting any Speed die for all librarians who can act. Your finger probably slipped for this one.

          Breaking Their Immersion
          Breaking Their Immersion 79.5%

          Clear an Abnormality battle.

          Overwritten
          Overwritten 76.5%

          Use an Abnormality page.

          Your Shield
          Your Shield 76.1%

          Stagger a guest by deflecting.

          Alexandria Simulator
          Alexandria Simulator 57.1%

          Burn 100 books in total.

          A Pity
          A Pity 56.1%

          Acquired all the listed rewards from a book that contains an Objet d’art page.

          Facts
          DeveloperProjectMoon
          PublisherProjectMoon
          GenresIndie · RPG · Strategy
          ModesSingle-player
          Steam features
          WorkshopCloudRemote PlayFamily Sharing
          Ratings
          Brazil14+

          Violência, Linguagem imprópria

          ESRBMature 17+

          Violence, Blood and Gore, Strong Language

          Indonesia18+

          Rokok dan/atau rokok elektronik, minuman beralkohol, narkotika, psikotropika, dan/atau zat adiktif lainnya, Kekerasan, Penggunaan bahasa

          South Korea18+
          Germany (Steam rating)16+

          Gewalt, Drogen, Derbe Sprache

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