# Transaction costs ## Type of costs in Hibiki Run marketplace There are 2 types of costs involved when a transaction takes place in the marketplace, they are borne by the seller. * Transaction fee: 2% * Royalty for Hibiki Run NFTs: 4% * Royalty for NFTs from external project & HBK Artists/musicians: 6-20% ## Why set adjustable royalties for external projects? To enable every user to participate and enjoy a game that is [**free-to-play**](/hibiki-run-whitepaper-v3.0/how-it-works/free-to-play.md) and fun, lowering entry barrier becomes the first priority. It is vital to provide users with a variety of rewards. At the moment, there are four categories: HUT & HBK tokens, core game assets (Headphones & Omamoris), NFTs from external projects and fans (JPEGs, music, and animation), and project whitelists. The high royalty rate guarantees income to content creators and fans who invest time and effort into our community, and it encourages more talented artists and musicians to contribute to the raffle pool with abundant content. --- # 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/hibiki-run-whitepaper-v3.0/tokenomics/transaction-costs.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.