> For the complete documentation index, see [llms.txt](https://kittykingdom.gitbook.io/kittykingdom/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kittykingdom.gitbook.io/kittykingdom/game-feature/nft-market.md).

# 🎨NFT Market

NFT Market supports the trading of all assets of **KittyGame**.

Kitty sales will be conducted in the form of ducth auction. You can set the starting price and ending price, the price of Kitty will fall from the starting price to the ending price within 31 hours.

Price calculation is as follows:

StartPrice >= (basePrice + basePrice \* (\_kitty.info.rarity -1) \* 20/100 + basePrice \* \_kitty.state.level/100) \*120/100

Endprice>=basePrice + basePrice \* (\_kitty.info.rarity -1) \* 20/100 + basePrice \* \_kitty.state.level/100

BasePrice =100u


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