# MarketPlace The Marketplace allows NFT monetization by selling SHEEPN and earning GSPT. If a player gets a SHEEPN with the same qualities and higher rarity - among the SHEEPNs he had before, the lower rarity SHEEPNs he had before will not be of much use even if he had them. In that case, players will be able to monetize their SHEEPN by selling their excess SHEEPN in the marketplace. ## How the Marketplace Works In the SLEEPASS marketplace, NFTs are sold in an auction format. Each SHEEPN is sorted by quality and rarity, and the player who offers the highest price within a set time period can purchase the NFT. Because transactions take place off-chain, users can transact without having to worry about fees. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://slp.gitbook.io/whitepaper-en/tokenomics/marketplace.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.