Librarian: Tidy Up The Arcane Library!

3,072 books, scattered across two floors, and not one of them tells you where it belongs without you checking a map first — that’s the entire opening state of Librarian: Tidy Up the Arcane Library!, a first-person organization simulator where the job is exactly what the title says.

Sorting Rules in Librarian: Tidy Up the Arcane Library!

The library is split into 14 subject sections on the first floor and 17 on the second, each governed by wall maps that tell you where a given category belongs — shelves for destructive magic, the travels of otherworld, mystery fiction, and dozens of other themed series. A shelf only counts as complete once its label glows blue, and getting there requires two things at once: every book in a series has to be grouped together, and the volumes within that series have to sit in correct left-to-right order. A single book out of sequence, or one volume that’s wandered into a neighboring row, keeps the whole section dark even if every book is technically shelved somewhere nearby.

That distinction trips people up constantly. Players report finishing what looks like a full shelf only to find the indicator still unlit, and the cause is almost always a volume order mistake or a series accidentally split across two shelves rather than a missing book.

Keys and Chest Upgrades in Librarian: Tidy Up the Arcane Library!

Four hidden keys unlock passive upgrades from chests scattered around the starting room. The Crimson Octagon Key, found hanging beneath the crest near the entrance, unlocks Jump and is worth grabbing first since it’s needed to reach the Azure Star Key on the second floor. The Golden Diamond Key sits inside a decorative vase on the stair banister and grants Carry Capacity +3, while the Emerald Club Key is buried in a pile of books on a bench and unlocks Sprint. These are minor, passive boosts rather than active spells, which matters later for anyone chasing a specific achievement.

Speedrun-minded players prioritize all four keys immediately, since Jump, Sprint, and the Carry Capacity boosts compound with every later system in the game.

Major Magic: Assemble, Insight, and Auto-Shelving

Completing rows earns points that unlock active spells layered on top of the passive key upgrades. Assemble is the standout — it summons every other volume in a series directly to your hands, turning a scavenger hunt across two floors into a single cast. Insight highlights matching volumes in a disorganized pile, which helps once the floor is covered in loose books from multiple series at once, and Auto-Shelving instantly places whatever you’re carrying onto the correct shelf in order. Later systems referred to in player guides as Shelf Guide and Sorting build on these, letting you offload more of the manual placement work as your points accumulate.

Once Assemble and Auto-Shelving are both leveled up, the pace of the game changes noticeably — what starts as a genuine spatial puzzle in the early rows increasingly becomes about efficiently chaining spells rather than hunting for individual volumes.

Achievements and the Anti-Magic Master Challenge

Full completion means sorting all 3,072 books across all 400 rows, which unlocks The Grand Librarian achievement. Separate from that is Efficiency Librarian, earned by finishing the entire library within three hours — a target experienced players have hit while also writing guides and avoiding minor magic simultaneously. Anti-Magic Master sits at the opposite end: it requires completing the game while avoiding all active major spells, including Assemble, Insight, and Auto-Shelving, which turns the same 400 rows into a much slower manual task. There’s also a joke achievement, sometimes called “You Are Fired,” for filling every shelf without completing a single row correctly.

A Recall Stone near the podium on the stairs, added in a post-launch update, lets you pull back any of the last unshelved books once you’re down to roughly ten remaining — a fix specifically aimed at books that end up stuck or hard to reach.

How many books are in Librarian: Tidy Up the Arcane Library!?

The full library contains 3,072 books spread across 400 rows and 31 total subject sections between the first and second floors.

Where are the four keys in Librarian: Tidy Up the Arcane Library!?

The Crimson Octagon Key hangs beneath the entrance crest, the Golden Diamond Key is hidden in a stair-banister vase, the Azure Star Key sits atop a back shelf on the second floor, and the Emerald Club Key is buried under books on a bench near the scale.

Why won’t my shelf turn blue in Librarian: Tidy Up the Arcane Library!?

The most common cause is a volume placed out of order within its series, or part of a series split across two different shelves — the section only lights up blue once every book is both present and correctly ordered.

Between the Recall Stone, the Anti-Magic Master route, and the sheer number of ways to misplace a single volume of a ten-book series, Librarian: Tidy Up the Arcane Library! turns out to have more depth in its shelving rules than its cozy premise lets on.