NFTs on Sui work differently compared to EVM chains, but they offer many of the same features—like ownership, transferability, metadata, and royalties—with some key advantages. Sui uses an object-based model, where each NFT is a unique object rather than just a token ID. This gives you more flexibility because the NFT can carry dynamic data and be updated or composed with other objects. Unlike Ethereum, where NFTs usually follow a standard like ERC-721, Sui doesn’t enforce strict standards—instead, it gives you tools to define your own logic and behavior through Move modules.

Yes, you can absolutely build an NFT marketplace on Sui. In fact, marketplaces already exist on Sui, such as BlueMove and Clutchy, which support buying, selling, minting, and even auctions. The Sui architecture supports efficient on-chain operations with low fees and fast transaction finality, making it well-suited for scalable marketplaces. You also benefit from native features like programmable NFTs, verifiable ownership, and gas-efficient transfers.

To get started building NFTs or a marketplace on Sui, check out the official developer resources at https://docs.sui.io or explore open-source code examples shared by the community.