Library of Ruina cover art

Library of Ruina

2021Project MoonPlayStation 4, PC (Microsoft Windows), Xbox One, Nintendo Switch

"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.

What it feels like

An active, present threat pervades the library as guests are encountered and defeated, with a looming sense of supernatural danger. An unhurried, interpretive tone invites reflection on the library's nature, the guests, and the meaning of collecting them as books.

Menacing55%
Contemplative30%

What it's about

The setting centers on psychological unease and the surreal premise of a living library that consumes visitors as books. Horror elements—the consumption of guests, transformation into books, cosmic dread—are intentionally unsettling and central to atmosphere. The nature of the library, its purpose, and the identity of the perfect book remain enigmatically withheld and gradually revealed.

Psychological Horror60%
Horror50%
Mystery28%

How it plays

Combat is fundamentally driven by card-based units and actions; guests engage in turn-based card battles as the core loop. Building and refining decks of cards is the primary progression and strategic system, defining loadouts and party composition. All combat unfolds in discrete alternating turns between librarians and guests with no real-time pressure.

Card Battler95%
Deckbuilding90%
Turn-Based Combat90%
Party Management70%
Character Builds45%
Moral Choice35%
Skill Checks35%

How it looks and sounds

Character design and visual presentation follow Japanese anime-inspired aesthetics with stylized character portraits.

Anime Style45%

How it's structured

A bounded narrative arc with authored story beats and progression toward obtaining the singular perfect book provides campaign structure. Persistent unlocks, defeated guests turned to books, and library growth accumulate across runs to strengthen the librarians. Each combat encounter functions as a discrete run where defeat resets the immediate battle, though meta-progression carries across attempts.

Campaign75%
Meta-Progression65%
Run-Based65%
Branching Narrative35%
Chrono Ark75% match

Shares Deckbuilding, Turn-Based Combat, Card Battler, Run-Based.

Both lean into Deckbuilding, Turn-Based Combat, Card Battler, Run-Based.

Deckbuilding90%Turn-Based Combat80%Card Battler75%Run-Based95%
Roguebook65% match

Shares Card Battler, Deckbuilding, Turn-Based Combat, Run-Based.

Both lean into Card Battler, Deckbuilding, Turn-Based Combat, Run-Based.

Card Battler88%Deckbuilding92%Turn-Based Combat85%Run-Based95%

Shares Deckbuilding, Card Battler, Turn-Based Combat, Run-Based.

Both lean into Deckbuilding, Card Battler, Turn-Based Combat, Run-Based.

Deckbuilding95%Card Battler90%Turn-Based Combat75%Run-Based85%

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