# Other features ## Our own marketplace * Players may exchange their NFT (which has XP and ranks connected) or their chest (yes, players can sell a legendary chest after receiving it for free!) on our own marketplace. * We streamline the transaction and connect them with a larger audience. Its use has the extra benefit of being entirely decentralized, allowing for unfettered cross-border transactions. ## Past games * The application provides access to all past games. * Solving a past game does not earn ranking points, but does earn XP points. ## Referral Players will be able to invite people to win tokens. --- # 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://metamindgames.gitbook.io/metamindgames/the-application/other-features.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.