> For the complete documentation index, see [llms.txt](https://docs.shopnext.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.shopnext.io/whitepaper/how-to-play/fees-and-rules.md).

# Fees and rules

* Marketplace trading fee: 5% in NEXT, paid by NFT Card Sellers. Marketplace trading fee can be used to cover operation cost or burned.
* *All the fee (boosting, recharging, redeeming) in NEXT will be burnt.*
* Anti undercover sale: ShopNEXT marketplace is the only place to trade NFT cards. If a user transfers the card outside our marketplace, the card will be voided and cannot be used in the ShopNEXT gameplay anymore.
* After listing, it will take up to 24 hr for an NFT card to appear on the marketplace.
* Owner cannot apply the listed NFT cards to transactions or use them to increase the reward index; but karma of listed cards can still be used in calculating account average karma.