
Upgrading your weapons in Clair Obscur: Expedition 33 is an important aspect of leveling up and combating more powerful opponents. There are various methods and materials available to upgrade your equipment, keeping you ahead of the game during combat. In this guide, we have explained the weapon upgrade system, what materials are required, how you can get them, and where you can utilize them.
Key Materials for Weapon Upgrades
One of the most important aspects of upgrading weapons is collecting the right materials. These resources are used at various stages to enhance the power and capabilities of your gear. Here are the main materials you’ll need:
Material | Usage |
Chroma Catalys | Used to upgrade weapons up to level 3 |
Polished Chroma Catalyst | Used to upgrade weapons up to level 9 |
Resplendent Chroma Catalyst | Used to upgrade weapons up to level 19 |
Grandiose Chroma Catalyst | Used to upgrade weapons up to level 32 |
Perfect Chroma Catalyst | Used to upgrade weapons to level 33 (max level) |

Where to Find Weapon Upgrade Materials
You can obtain upgrade materials through various means as you progress through the game. Here’s where you can find them:
- Exploration: While exploring different zones, you can discover materials as part of your loot. Hidden treasures and enemy drops are a common source.
- Defeating enemies and bosses: Some materials are awarded for defeating strong enemies and bosses. Take every opportunity to battle tougher opponents to earn these valuable resources.
- Purchasing from merchants: Some rare materials can be bought from merchants. Look for these vendors in various locations to purchase the upgrade materials you need.

Where to Upgrade Your Weapons
Once you have the required materials, head back to your camp and speak with the Curator, whom you’ll meet after completing the Soaring Waters zone early in the main story.
The Curator is located in a cave to the right of the main campfire area. There, you can select the “Upgrade Weapon” option and invest your Chroma Catalysts to enhance your chosen weapons.

Upgrading your gear in Clair Obscur: Expedition 33 is essential to survival. Gather materials, explore the world, defeat enemies, and rely on the Curator’s services to reach your full potential.
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