> For the complete documentation index, see [llms.txt](https://mad-shapes.gitbook.io/cosmic-champs-whitepaper-1/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mad-shapes.gitbook.io/cosmic-champs-whitepaper-1/nfts/marketplace.md).

# Marketplace

Players can buy, sell, and trade Cosmic Champs NFTs on a marketplace using COSG. Our preferred marketplace is [Algogems](https://algogems.io/shops/cosmicChamps/sales) as they allow sales in COSG. For the foreseeable future, all Cosmic Champs NFT shuffles for new seasons will occur here. Each transaction on Algogems will incur a small royalty fee that goes into the community treasury to help the Cosmic Champs ecosystem flourish. Our vision is to build our own marketplace so we can deliver a more tailored experience to our users and increase the flow of revenue to the community treasury. It’s a win-win!