> For the complete documentation index, see [llms.txt](https://firework-1.gitbook.io/firework-games/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://firework-1.gitbook.io/firework-games/spark-era/introduction/spark-era-origin/nft-asset-trading-system.md).

# NFT asset trading system

In order to facilitate players' gaming activities, we create the SPARK ERA's NFT asset trading system where players can trade their NFT assets.

Functionality:

* NFT asset listing.
* NFT asset screening.
* NFT asset purchase.
* NFT asset quick sale.
* NFT asset auction.

The SPARK ERA's NFT asset trading system will charge a 3.5% transaction fee when each transaction is successful. 1% of the transaction fee will be used for the repurchase of FIRE tokens.