Library Of Ruina is Project Moon's 2021 deck battler, where you run a Library that mails out invitations, fights the Guests who accept, and turns the losers into Books. Every librarian is defined by one Key Page, which fixes HP, Stagger Resist, Speed and the Slash, Pierce and Blunt resistance columns, plus a deck of exactly 9 Combat Pages. Fights resolve as clashes: both sides roll dice at each other, the higher roll wins and the loser's die is destroyed, so damage is something you win rather than something you spend. Books drop the pages that build the next deck, which means the difficulty curve is assembled out of whatever you beat last.
Resource management and crafting determine how quickly your power scales. This guide covers what to prioritize, where to farm, and how to avoid wasting resources on the wrong upgrades.
Crafting Priority List
The order you should invest resources:
| Priority | Target | Why |
|---|---|---|
| 1 | Primary equipment | Biggest damage increase per resource spent |
| 2 | Core build gear | Enables your build's key combinations |
| 3 | Defensive upgrades | Survivability for boss fights |
| 4 | Secondary equipment | Situational options for specific content |
| 5 | Consumables | Temporary boosts for hard content |
Resource Farming by Area
Canard
Key resources: A Yun's Office Fixer Page 1, A Hook Office Fixer Page 1, first real Combat Pages Farming efficiency: Low value per run, but safe and consistent
Focus on gathering materials for Pierce dice upgrades here. See our maps guide for detailed area layouts.
Urban Myth
Key resources: A Hook Office Fixer Page 2, A Backstreets Butcher pages, the four Lulu's Friend pages Farming efficiency: Good early-game farming spot
Focus on gathering materials for Pierce dice upgrades here. See our maps guide for detailed area layouts.
Urban Legend
Key resources: A Zwei Fixer's Page, A Stray Dog's Page, Grade 8 and Grade 7 Fixer pages, Axe Gang Member pages Farming efficiency: Best mid-game farming, worth revisiting
Focus on gathering materials for Pierce dice upgrades here. See our maps guide for detailed area layouts.
Urban Plague
Key resources: The Carnival's Page, Salvador's Page, Tamaki's Page, Will Make Fine Silk, Ink Over Farming efficiency: High-value materials for late-game upgrades
This is where you farm materials for Slash dice max upgrades. See our maps guide for detailed area layouts.
Urban Nightmare
Key resources: Star of the City access, Floor of Philosophy, Floor of Religion Farming efficiency: Best resources in the game, requires strong build
This is where you farm materials for Slash dice max upgrades. See our maps guide for detailed area layouts.
Upgrade Path
Early Game (Canard to Urban Myth)
- Upgrade your starting equipment to functional level
- Craft basic defensive gear
- Save specialty materials, since you'll need them later
- Focus on Pierce dice once accessible
Mid Game (Urban Legend)
- Push Pierce dice to mid-level upgrades
- Start collecting materials for Slash dice
- Craft situational consumables for boss fights
- Upgrade build-specific gear pieces
Late Game (Urban Plague to Urban Nightmare)
- Max out Slash dice. This is your top priority
- Complete your build's core gear set
- Craft endgame consumables
- Optional: upgrade secondary equipment for variety
Crafting Mistakes to Avoid
- Spreading upgrades across multiple equipment: Focus one weapon to max before diversifying.
- Hoarding materials: Use them. The game provides enough if you farm efficiently.
- Upgrading the wrong gear: Check our builds guide before investing.
- Ignoring Urban Legend farming: This area has the best resource-to-time ratio in mid-game.
- Crafting consumables too early: Save specialty materials for late-game recipes.
Resource Efficiency Tips
- Open the guest's Key Page before you build. The Slash, Pierce and Blunt columns run Ineffective 0.25x, Endured 0.5x, Normal 1x, Weak 1.5x and Fatal 2x, and the stagger table is separate from the HP table, so a fight can be won on stagger with damage types that barely scratch health.
- Farm Urban Legend during mid-game for the best return on time
- Check the walkthrough to know when each resource becomes available
- Match your farming route to your build. Some classes farm faster in certain areas
More Library Of Ruina Guides
- Library Of Ruina Library Of Ruina Overview
- Library Of Ruina Best Builds
- Library Of Ruina Tier List
- Library Of Ruina Walkthrough
- Library Of Ruina Beginner's Guide
- Library Of Ruina Tips & Tricks
- Library Of Ruina Weapons Guide
- Library Of Ruina Combat Guide
- Library Of Ruina Boss Guide
- Library Of Ruina Maps & Locations
- Library Of Ruina Classes & Characters
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