# EST The coEST, also known as Star Stone, is the main currency in the game that can be directly extracted from the chain. Most consumption scenarios in the game require the use of EST, such as refueling, repairing battleships, upgrading battleships, and engaging in battles. EST can be earned through interstellar exploration and battles, and can also be traded through the DEX platform.nverting function of EOE allows players to switch their EST to EXT directly. * EST contract address: 0x12dd58c421b68b307b6a31ed2acc81104a7625be * EST earns money by playing games. You can withdraw money to the chain for transactions at any time. #### **Mode of output** * Interstellar exploration: Output efficiency depends on the rarity and level of the warship. * Battle game: Join the battle and win. * Invitation Reward: Invite friends to purchase battleships and receive additional rewards for their consumption #### **Usage scenarios** EST is used for the following activities: * Refuel: Use EST to pay for refueling to continue interstellar exploration * Repairing the warship: After being attacked, EST needs to be paid to repair the warship, and the maintenance cost is related to the rarity of the warship * Battle game chips or tickets: Various challenges to enter the adventure require payment of corresponding EST. * Exchange EXT: EST future support will be exchanged for governance tokens according to a certain proportion #### **Pledge** Players can receive EST in the game as collateral to obtain more resource income.The reward for staking comes from the handling fee rewards generated by players in the game. --- # 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://eoe.gitbook.io/era-of-explorer/economics/est.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.