# Marketplace Hibiki Run's in-app market place is a common platform for traders and players to buy and sell their NFTs rewarded from Raffle machine. ## Platform fee For each transaction (in Matic), Hibiki Run will reserve 2% of platform fee ## Royalty For each transaction of NFT trading, Hibiki Run offers royalty to all external projects and HBK artists/musicians: * **4%** Royalty for NFTs originated from Hibiki Run team (headphone, game accessories, PFP NFTs, Music NFT, etc) * **20%** of Royalty for external projects and Fans which created and donated free NFTs into in-app raffle pool (jpeg, wav) --- # 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://whitepaper.hibikirun.com/index/how-it-works/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.