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About Library Of Ruina
In Library of Ruina you become the Library’s owner, inviting guests whose stories become books when defeated. Librarians battle guests on a stage‑like field using cards and dice, turning victories into new books that expand the Library. The game blends narrative and strategy, letting you grow a collection of books, unlock stronger guests, and uncover the City’s secrets while seeking the ultimate perfect book.
01 / THE GUIDE
Library Battle Simulation
Guests are invited to the Library where librarians fight them using cards and dice. You can view the cards a guest will play and choose the optimal opposing card.
When combat starts, the dice roll from the selected cards decides the outcome, but effects and variables can shift the dice in your favor or against you.
- Observe the guest’s upcoming cards before selecting yours.
- Consider card effects that modify dice results.
02 / THE GUIDE
Emotional Tension
Both librarians and guests build emotion as battles progress. Librarian emotions can trigger positive outcomes or powerful effects with penalties.
Guest emotion raises combat difficulty, yet rarer books become obtainable as tension peaks.
- Watch librarian emotion bars for potential bonuses.
- Higher guest emotion may yield better books despite harder fights.
03 / THE GUIDE
Book Collection
Defeated guests turn into books that can be used as librarian bodies, materials for Library growth, or new battle cards.
Books also serve as invitation parts, allowing you to summon new guests with different secrets.
- Prioritize books that add new cards to your deck.
- Use body books to strengthen librarians.
04 / THE GUIDE
City Story
The game follows characters like Angela, the Sephirot, and Roland after Lobotomy Corporation, revealing events across the City surrounding the Library.
Accumulating books lets you invite stronger guests, deepening exposure to the City’s narrative.
- Track story progress by noting which guests you’ve invited.
- Collect books from varied guests to see more of the City’s lore.
05 / THE GUIDE
Platform Features
Library of Ruina runs on Windows and supports Steam achievements, Steam Workshop, partial controller support, Steam Cloud, remote play on tablet, and family sharing.
These features allow progress saving across devices and community‑created content.
- Enable Steam Cloud to keep your book collection synced.
- Explore Workshop for fan‑made cards or scenarios.
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