> For the complete documentation index, see [llms.txt](https://whitepaper.winnfthero.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://whitepaper.winnfthero.io/3.-nfts.md).

# 3. NFTs

NFTs define a player's role in the game. Through the circulation of NFTs, players can easily realize or transfer value. WIN NFT HERO has built a marketplace for players to trade both hero and equipment NFTs freely.