Upgrading an NFT Castle
The Castle can accumulate XP after you have played a 1 vs 1 challenge or a daily challenge. Then you can use those XP to upgrade the items in the Castle to make it stronger. This helps you to breathe easier in upcoming battles and increases the value of the Castle in the market.
To upgrade the Castle, please follow the steps below:
Step 1: In the game main scene, please select the "Upgrade" button from the bottom menu, or select the Castle's avatar on top.
Step 2: In the upgrade scene, please select the item that you want to upgrade from the side menu.
Step 3: In the Item scene, please select the upgrade button to upgrade the item.
Note: Please make sure that the Castle has enough XP for the upgrade.
For improving gameplay, you should take care of your castle by upgrading different items including knights, wizard and battle towers. Castle items in the game are very useful in enhancing the attacks and defend capabilities of the castle.
Here is a list of castle items available in Castle Defense.

A steel sword is especially designed for battles against monsters.

A steel helmet that covers most of the head to offer great protection against damage.

A steel chest that designed for brave knight who faces against monsters at the forefront.

A pair of heavy iron boots that is suited to knights.

A rare jewelry that brings endless life to its wearer.

A staff made with a branch from the ancient tree which holds vast magic power.

A mystic hat, made specifically for wizards, which boost their attack speed.

An exclusive robe for wizards that protect them from various dangers.

A pair of leather boots that is suited to wizards.

A book containing a powerful magic of fire for magicians.

Reinforce the bomb shrapnel to pierce through a huge part of enemies' armor.

A supreme achievement of technology, Storm Tower creates a static field around itself to strike all incoming enemies.
Castles items can help users win battles in Castle Defense successfully. To upgrade your castles items you will have to visit the castles dashboard and select the item which you intend to upgrade as shown in the diagram below.
Upgradation by using XP is currently supported, but moving forward users will be able to upgrade their NFT Castles items by using mPOC.
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Knight's Sword
Iron Helmet
Iron Armour
Iron Boots
Knight's Ring
Wooden Wand
Wizard Hood
Fabric Robe
Iron Boots
Book of Fire
Cannon Tower
Lightning Tower