diff --git a/src/IRaidGeld.sol b/src/IRaidGeld.sol
new file mode 100644
index 0000000..3a9ef2b
--- /dev/null
+++ b/src/IRaidGeld.sol
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.13;
+
+import {Army, Player, Boss, LastBossResult} from "./RaidGeldStructs.sol";
+
+/**
+ * @title IRaidGeld
+ * @dev Interface for the RaidGeld contract
+ */
+interface IRaidGeld {
+    /**
+     * @notice Registers ETH for the player
+     */
+    function registerEth() external payable;
+
+    /**
+     * @notice Registers DAO tokens for the player
+     */
+    function registerDaoToken() external payable;
+
+    /**
+     * @notice Initiates a raid
+     */
+    function raid() external;
+
+    /**
+     * @notice Adds units to the player's army
+     * @param unit The type of unit to add
+     * @param n_units The number of units to add
+     */
+    function addUnit(uint8 unit, uint16 n_units) external;
+
+    /**
+     * @notice Initiates a battle with the boss
+     * @return hasWonOrAscended An array indicating if the player has won or ascended
+     */
+    function battleWithBoss() external returns (bool[2] memory hasWonOrAscended);
+
+    /**
+     * @notice Gets the player information
+     * @param addr The address of the player
+     * @return Player The player information
+     */
+    function getPlayer(address addr) external view returns (Player memory);
+
+    /**
+     * @notice Gets the army information of the player
+     * @param addr The address of the player
+     * @return Army The army information
+     */
+    function getArmy(address addr) external view returns (Army memory);
+
+    /**
+     * @notice Gets the boss information
+     * @param addr The address of the boss
+     * @return Boss The boss information
+     */
+    function getBoss(address addr) external view returns (Boss memory);
+
+    /**
+     * @notice Gets the result of the last boss battle
+     * @param addr The address of the player
+     * @return LastBossResult The result of the last boss battle
+     */
+    function getLastBossResult(address addr) external view returns (LastBossResult memory);
+
+    /**
+     * @notice Checks if the player is registered
+     * @param addr The address of the player
+     * @return bool True if the player is registered, false otherwise
+     */
+    function isRegistered(address addr) external view returns (bool);
+
+    /**
+     * @notice Sets the buy-in amount for DAO tokens
+     * @param newAmount The new buy-in amount
+     */
+    function setDaoTokenBuyInAmount(uint256 newAmount) external;
+
+    /**
+     * @notice Deploys a swap pool with specified amounts of GELD and DAO tokens
+     * @param _geldAmount The amount of GELD tokens
+     * @param _daoTokenAmount The amount of DAO tokens
+     */
+    function deploySwapPool(uint256 _geldAmount, uint256 _daoTokenAmount) external;
+
+    /**
+     * @notice Sets the DAO address
+     * @param _dao The new DAO address
+     */
+    function setDaoAddress(address _dao) external;
+}
\ No newline at end of file
diff --git a/src/RaidGeld.sol b/src/RaidGeld.sol
index 2a255d9..7ab5d96 100644
--- a/src/RaidGeld.sol
+++ b/src/RaidGeld.sol
@@ -10,11 +10,13 @@ import { IERC20, TransferHelper } from "@uniswap/v3-periphery/contracts/librarie
 import { INonfungiblePositionManager } from "./lib/INonfungiblePositionManager.sol";
 import { CustomMath} from "./lib/CustomMath.sol";
 
+import { IRaidGeld } from "./IRaidGeld.sol";
 import {RaidGeldUtils } from "../src/RaidGeldUtils.sol";
 import {Army, Player, Raider, Boss, LastBossResult} from "../src/RaidGeldStructs.sol";
 import { Constants} from "../src/Constants.sol";
 
-contract RaidGeld is ERC20, Ownable, Constants {
+
+contract RaidGeld is ERC20, Ownable, Constants, IRaidGeld {
     uint256 public constant MANTISSA = 1e4;
     uint256 public constant BUY_IN_AMOUNT = 0.00045 ether;
     uint256 public BUY_IN_DAO_TOKEN_AMOUNT;