> For the complete documentation index, see [llms.txt](https://contact-63.gitbook.io/cebg-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://contact-63.gitbook.io/cebg-whitepaper/gameplay/nft-upgrade.md).

# NFT Upgrade

### **Hero Upgrade Mechanism**

Every level can bring a stat boost.

Upgrade requirements: Spend GOLD and Energy Crystals.&#x20;

The higher the level, the more GOLD and Energy Crystals are required.

The higher the hero's level, the stronger their attributes become.&#x20;

GOLD and Energy Crystals can be obtained through gameplay or purchased in the in-game store.

### Chip Upgrade Mechanism

Upgrade requirements: Spend GOLD and Chips.&#x20;

The higher the level, the more GOLD and Chips are required.

The higher the chip's level, the stronger its attributes become. GOLD and Chips can be obtained through gameplay or purchased in the in-game store."<br>


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