# INTRODUCTION

- [Marketplace](https://docs.phala.world/introduction/marketplace.md): https://phala.world/marketplace
- [Delegation NFTs](https://docs.phala.world/introduction/marketplace/delegation-nfts.md): Will be listed soon!
- [Roadmap](https://docs.phala.world/introduction/roadmap.md)
- [Interaction of PhalaWorld NFTs](https://docs.phala.world/introduction/interaction-of-phalaworld-nfts.md)
- [Incubation and customization](https://docs.phala.world/introduction/incubation-and-customization.md): The first round of incubation has ended!
- [Species and careers](https://docs.phala.world/introduction/species-and-careers.md)
- [The Shell NFT](https://docs.phala.world/introduction/the-shell-nft.md)
- [Background story of Origin Shell](https://docs.phala.world/introduction/the-shell-nft/background-story-of-origin-shell.md)
- [The Spirit NFT](https://docs.phala.world/introduction/the-spirit-nft.md)
- [Attributes](https://docs.phala.world/introduction/the-spirit-nft/attributes.md)
- [Spirit World Ranks](https://docs.phala.world/introduction/the-spirit-nft/spirit-world-ranks.md)
- [The Seal NFT](https://docs.phala.world/introduction/the-seal-nft.md): COMING SOON!
- [PhalaWorld Pioneer Badge](https://docs.phala.world/introduction/the-seal-nft/phalaworld-pioneer-badge.md)
- [FAQ](https://docs.phala.world/introduction/faq.md)


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