One Piece Odyssey
One Piece Odyssey: how to open locked treasure chests and where to find all of them
We’ll tell you how to get the Treasure Hunter trophy in One Piece Odyssey, for which you need the key that opens every locked treasure chest in the game.
You can stop looking now. No matter how many pots you break or golden shines you look for and chase, you’re not going to find any lost keys to open the locked treasure chests in One Piece Odyssey. The ones that Nami always mentions not to forget about so you can go back to them after figuring out how to open them. And basically you’re not going to find any because there’s only one key, and it’s obtained after a certain Side Story.
How do you open the locked treasure chests in One Piece Odyssey?
To get the master key that opens every single locked chest in the game you need to complete the “Grand Line Quiz” Side Story. This is a very simple mission, in which you need to show your knowledge about One Piece by answering questions about the manga and anime. The only problem is that you have to complete all the stages of this Side Story in Arabasta, Water Seven, Marineford, and Dressrosa (in that order).
Once you complete all 4 parts of this quest, the chests and their treasures will be there for you to plunder.
Every locked treasure chest location in One Piece Odyssey
Once you have the key, you’ll want to go around the world of the game in order to open them all up, get their loot, and get away with the “Treasure hunter” achievement. Here’s the location of every single locked treasure chest, divided by area:
Locked treasure chests in Waford
- 2 in Sky Tower (Strange Cube Floor Level 1 and 2).
- 2 in Forbidden Valley, to which you gain access after a Side Story in Dressrosa involving Adio’s family (you need to finish the adventure first).
- Waford South, on the path to Western Ruins.
- Waford South, on the path to Eastern Ruins.
- Waford South, on the Circular Inland Sea north of Adio’s house.
- Hermit’s Cave.
Locked treasure chests in Alabasta
- Desolate Valley (Desert Near Nanohana).
- Sandy Ruins.
- Bone Bridge Canyon.
- Nanohana, Eastern Highway.
Locked treasure chests in Water Seven
- 2 in the Old Sewer.
- Dock One of the Material Depot.
- Water Seven City Area, in the Red Bird Apparel Shop.
- Water Seven City Area, at Cafe Park.
Locked treasure chests in Dressrosa
- Dressrosa City Area, in the Rose Guerrero Weapon Shop.
- Dressrosa City Area, in the Coliseum Path.
- Dressrosa City Area, in the Dressrosa City Old Residential District.
- New Royal Plateau: Bottom, hidden in the 1st Level of the Great Fissure area.
Locked treasure chests in Marineford
- There’s only one, and it’s easy to find: it’s next to the shops in the Town Outskirts area.
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