# Invitation Mechanism Players must spend HPs to play the game. Owning more HPs means that the player will have more chances to pass the levels in the game, which will more likely cause a better ranking for the player. In order to bring more players to participate in CheersLand Multi-game Universe, we designed an invitation mechanism: When the user clicks the Invite Friends button, CheersLand will generate an exclusive link based on the user's blockchain address. Once other users visit CheersLand through the exclusive link and authorize the contract to confirm the invitation relationship, both the host and guest will increase 1HP for the game. Therefore, everyone will be powered by his social network in CheersLand. The Invitation Contract developed by the CheersLand team will record the user's invitation data and calculate HPs. Now it's live on Binance Smart Chain and will integrate other blockchains in the future. The contract owner has the authority to modify the maximum amount of invitations. Since it is still in the early access stage, we set the maximum amount of invitations to 10 for each user. ![Invitation Mechanism Framework](https://231328000-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-Mi-VBLTviKJE-YA4O3U%2F-Miw6UQG_QQMrKhziJds%2F-Miw8UavZzmjrd29bjyK%2FInvitation%20Mechanism%20Framework.jpg?alt=media\&token=8abc6aef-ca62-470b-a485-05f87971a544) --- # 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://docs.cheersland.org/features/gameplay/invitation-mechanism.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.