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Octopath Traveler 0 (Octopath 0)

All Crested Key Locations and the Eight Sacred Treasures

Add to Watchlist

☆ How to Unlock All 36 Characters
★ Tier Lists: Best Characters and Best Jobs
☆ Farming Guides: EXP, JP, Money
★ Forbidden Weapon Locations
☆ Battle-Tested Equipment Locations
★ Endings Guide | Post-Game Guide

Octopath Traveler 0 - All Crested Key Locations
The Crested Key can be used to recruit Viator and unlock the Eight Sacred Treasures in Octopath Traveler 0 (Octopath 0). Read on to learn where to find the Crested Keys, how to use them, and where each of the Eight Sacred Treasures is located.

List of Contents

All Crested Key Locations

List of All Crested Keys

Crested Key Location
Dagger Crest
Crested Key Dagger Location
Serpent's Burrow, Flatlands
(Can also be chosen as a Belonging)
Sword Crest
Crested Key Sword Location
Bard in the tavern in Valore, Woodlands
(Player needs to have any other Crested Key)
Axe Crest
Crested Key Axe Location
Young Antique Dealer in Victors Hollow, Woodlands
(Use the Purchase Path Action)
Spear Crest
Crested Key Spear Location
Isle in the Outersea: East, Coastlands
Bow Crest
Crested Key Bow Location
East Cyphlo Banks, Riverlands
(Inside a chest)
Staff Crest
Crested Key Staff Location
Harbor Black Market Merchant in Grandport Markets, Coastlands
(Use the Entreat Path Action)
Fan Crest
Crested Key Fan Location
Mystery-Chasing Explorer in Sufrataljah, Sunlands
(Use the Entreat Path Action)
Tome Crest
Crested Key Tome Location
Sweltering Caves, Highlands
(Inside a chest)

This is a list of all the Crested Keys in the game.

Can Be Chosen as a Belonging

Select Crested Key as Belonging

You may choose the Crested Key as a Belonging at the start of the game. If you do this, the Dagger Crested Key at the Serpent's Burrow will not appear in the overworld.

Best Belongings to Start With

How to Use the Crested Key

Recruit Viator

Recruit Viator
A Crested Key is required to recruit Viator to your party.

He is found in a tavern in Valore, near the path to Valore Trail. You must speak to the bard with the Crested Key in your posession, and you will be able to invite Viator to your party afterwards. You will also receive the Sword Crested Key.

Viator Character Profile and How to Recruit

Use in the Eight Sacred Treasures Quest

Sacred Treasure Quest
The Crested Keys are used to unlock the Eight Sacred Treasures, which are available during the Eight Sacred Treasures Quest. Each Crested Key corresponds with a Sacred Weapon that matches the weapon type of their crest.

Where to Find the Eight Sacred Treasures

Isle of Heroes Past

Map Image
Isle of Heroes Past Map
Overworld Image
Overworld IMage

Once you gain access to the ship, you can sail into the Outersea and travel to the Isle of Heroes Past. This area is where all eight Sacred Treasures can be found, though each one is locked behind its own corresponding key.

How to Get The Ship

List of All Eight Sacred Treasures

All Eight Sacred Treasures and Effects

Weapon Type Phys Atk Other Stats
Tempest Spear Polearms +375 Spd: +99
Extra Effect: Small chance to raise potency of own physical attacks.
Storm Blade Swords +380 Phys Def: +120
Extra Effect: Deal 1 additional attack.
Deathclaw Dagger Daggers +360 Crit: +132
Extra Effect: Small chance to paralyze target.
Spirit Axe Axes +300 Elem Atk: +350
Extra Effect: Raise potency of all elemental attacks.
Moonlit Bow Bows +363 Elem Atk: +370
Extra Effect: Small chance to reduce target's Speed.
Evenfall Fan Fans +352 Elem Atk: +373
Extra Effect: Small chance to reduce target's Elem. Def.
Solaris Tome Tomes +186 Elem Atk: +400
Extra Effect: Reduce SP cost by 25%.
Staff of Discipline Staves +198 Elem Atk: +380
Extra Effect: Restore 6 SP every turn.

Alongside the Battle-Tested Weapons, these Sacred Treasures are among the strongest endgame weapons available.

Each one offers powerful effects that can significantly shift the flow of battle, making the effort to collect every crested key more than worthwhile.

Best Weapons and Equipment

Octopath Traveler 0 (Octopath 0) Related Guides

Tips and Tricks

Beginner Tips for Octopath Traveler 0

All Octopath Traveler 0 Tips and Tricks

General Guides
Nuts Guide: When and Who to Use it On Best Party and Team Composition
Path Actions Guide Break and Boost System
Stats Explained Best Front and Back Row Formations
Row Switching Guide How to Attack From the Back Row
What to Do With Embershroom Bed How to Save
How to Talk to Animals How to Change Jobs
How to Transfer Saved Data How to Restore Reputation
How to Open Blue Chests How to Claim Pre-Order Bonuses
How to Link Save Data From Other Games Best Items to Steal
How to Entreat NPCs How to Get Ratatouille
How to Get Radiant Cornerstones How to Get Avinea
How to Get the Cow Where to Find Healing Grape Bunch
How to Get Cat Whisker How to Get Quality Stone
How to Get Quality Cloth How to Get the Storage Bag
Where to Find Cait Island How to Get Fire Soulstones
How to Get The Ship List of All Outfits
How to Get Silver Ingots How to Get Gold Ingots
Book Order Solution -
Location Guides
All 8 Crested Key Locations All 5 Letter Fragment Locations
All 3 Azure Flamestone Locations All Seed Locations
How to Find Agapea Where to Find Shrimp
Town Building Guides
How to Grow Vegetables How to Raise Livestock
How to Invite Residents Monster Arena Guide
Museum Guide Training Ground Guide
Frequently Asked Questions
Can You Change Difficulty Settings? Do Dialogue Choices Matter?
Is There Auto Battle? Are There Secret Jobs?
Should You Seal the Rings? What Does the Eerie Statue Do?
Tell the Truth or Lie to Rinyuu? Are There Secondary Jobs?
Can You Save Elrica? -

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