diff --git a/contracts/crucible/src/lib.rs b/contracts/crucible/src/lib.rs
index 1dde2e1..9f13a9b 100644
--- a/contracts/crucible/src/lib.rs
+++ b/contracts/crucible/src/lib.rs
@@ -8,6 +8,7 @@ pub mod macros;
 pub mod prelude;
 pub mod sim;
 pub mod token;
+pub mod reputation;
 
 /// The `#[fixture]` attribute macro for defining reusable test setup structs.
 ///
@@ -16,4 +17,4 @@ pub mod token;
 ///
 /// See the [`crucible_macros`] crate documentation for full details and examples.
 #[cfg(feature = "derive")]
-pub use crucible_macros::fixture;
+pub use crucible_macros::fixture;
\ No newline at end of file
diff --git a/contracts/crucible/src/reputation.rs b/contracts/crucible/src/reputation.rs
new file mode 100644
index 0000000..a9247db
--- /dev/null
+++ b/contracts/crucible/src/reputation.rs
@@ -0,0 +1,234 @@
+use soroban_sdk::{contracttype, Address, Env, Val, Symbol, symbol_short};
+use soroban_sdk::testutils::{ContractFunctionSet, ConstructorArgs};
+
+#[contracttype]
+#[derive(Clone)]
+enum DataKey {
+    Admin,
+    Reputation(Address),
+}
+
+pub struct ReputationContract {
+    // We don't need to store anything in the struct because we use the contract's instance storage.
+    // But we need to satisfy the ContractFunctionSet trait.
+}
+
+impl ReputationContract {
+    pub fn new() -> Self {
+        Self {}
+    }
+
+    fn initialize(&self, env: Env, admin: Address) {
+        // Check if already initialized
+        let existing_admin: Option<Address> = env.storage().instance().get(&DataKey::Admin);
+        if existing_admin.is_some() {
+            panic!("already initialized");
+        }
+        env.storage().instance().set(&DataKey::Admin, &admin);
+        env.events().publish((symbol_short!("initialized"), admin), 0u32);
+    }
+
+    fn set_reputation(&self, env: Env, caller: Address, account: Address, score: i32) {
+        caller.require_auth();
+        let admin: Address = env.storage().instance().get(&DataKey::Admin).unwrap();
+        assert_eq!(caller, admin, "not admin");
+        env.storage().instance().set(&DataKey::Reputation(account), &score);
+        env.events().publish((symbol_short!("reputation_set"), account), score);
+    }
+
+    fn increase_reputation(&self, env: Env, caller: Address, account: Address, amount: i32) {
+        caller.require_auth();
+        let admin: Address = env.storage().instance().get(&DataKey::Admin).unwrap();
+        assert_eq!(caller, admin, "not admin");
+        let current: i32 = env
+            .storage()
+            .instance()
+            .get(&DataKey::Reputation(account.clone()))
+            .unwrap_or(0);
+        let new_score = current + amount;
+        env.storage().instance().set(&DataKey::Reputation(account), &new_score);
+        env.events().publish((symbol_short!("reputation_increased"), account), amount);
+    }
+
+    fn decrease_reputation(&self, env: Env, caller: Address, account: Address, amount: i32) {
+        caller.require_auth();
+        let admin: Address = env.storage().instance().get(&DataKey::Admin).unwrap();
+        assert_eq!(caller, admin, "not admin");
+        let current: i32 = env
+            .storage()
+            .instance()
+            .get(&DataKey::Reputation(account.clone()))
+            .unwrap_or(0);
+        let new_score = current - amount;
+        env.storage().instance().set(&DataKey::Reputation(account), &new_score);
+        env.events().publish((symbol_short!("reputation_decreased"), account), amount);
+    }
+
+    fn get_reputation(&self, env: Env, account: Address) -> i32 {
+        env.storage()
+            .instance()
+            .get(&DataKey::Reputation(account))
+            .unwrap_or(0)
+    }
+}
+
+impl ContractFunctionSet for ReputationContract {
+    fn call(&self, func: &str, env: Env, args: &[Val]) -> Option<Val> {
+        match func {
+            "initialize" => {
+                let admin = args.get(0)?.clone().try_into().ok()?;
+                self.initialize(env, admin);
+                Some(Val::Void)
+            }
+            "set_reputation" => {
+                let caller = args.get(0)?.clone().try_into().ok()?;
+                let account = args.get(1)?.clone().try_into().ok()?;
+                let score = args.get(2)?.clone().try_into().ok()?;
+                self.set_reputation(env, caller, account, score);
+                Some(Val::Void)
+            }
+            "increase_reputation" => {
+                let caller = args.get(0)?.clone().try_into().ok()?;
+                let account = args.get(1)?.clone().try_into().ok()?;
+                let amount = args.get(2)?.clone().try_into().ok()?;
+                self.increase_reputation(env, caller, account, amount);
+                Some(Val::Void)
+            }
+            "decrease_reputation" => {
+                let caller = args.get(0)?.clone().try_into().ok()?;
+                let account = args.get(1)?.clone().try_into().ok()?;
+                let amount = args.get(2)?.clone().try_into().ok()?;
+                self.decrease_reputation(env, caller, account, amount);
+                Some(Val::Void)
+            }
+            "get_reputation" => {
+                let account = args.get(0)?.clone().try_into().ok()?;
+                let score = self.get_reputation(env, account);
+                Some(Val::from(score))
+            }
+            _ => None,
+        }
+    }
+}
+
+impl ConstructorArgs for (Address,) {
+    fn __private_constructor_args_field_0(&self) -> Address {
+        self.0.clone()
+    }
+}
+
+impl ConstructorArgs for () {
+    fn __private_constructor_args_field_0(&self) -> Address {
+        panic!("ConstructorArgs for () not implemented for ReputationContract")
+    }
+}
+
+// We'll implement a client struct similar to MockToken for ease of use.
+#[derive(Clone)]
+pub struct ReputationContractClient {
+    env: Env,
+    address: Address,
+}
+
+impl ReputationContractClient {
+    pub fn new(env: &Env, address: &Address) -> Self {
+        Self {
+            env: env.clone(),
+            address: address.clone(),
+        }
+    }
+
+    pub fn address(&self) -> &Address {
+        &self.address
+    }
+
+    /// Initialize the reputation contract with an admin address.
+    /// This should be called by the deployer.
+    pub fn initialize(&self, admin: &Address) {
+        self.env.mock_all_auths();
+        let client = soroban_sdk::contractclient::ContractClient::new(&self.env, &self.address);
+        client.call(&symbol_short!("initialize"), &(admin,));
+    }
+
+    /// Set the reputation of an account to a specific score. Admin only.
+    pub fn set_reputation(&self, admin: &Address, account: &Address, score: i32) {
+        admin.require_auth();
+        self.env.mock_all_auths();
+        let client = soroban_sdk::contractclient::ContractClient::new(&self.env, &self.address);
+        client.call(&symbol_short!("set_reputation"), &(admin, account, score));
+    }
+
+    /// Increase the reputation of an account by a given amount. Admin only.
+    pub fn increase_reputation(&self, admin: &Address, account: &Address, amount: i32) {
+        admin.require_auth();
+        self.env.mock_all_auths();
+        let client = soroban_sdk::contractclient::ContractClient::new(&self.env, &self.address);
+        client.call(&symbol_short!("increase_reputation"), &(admin, account, amount));
+    }
+
+    /// Decrease the reputation of an account by a given amount. Admin only.
+    pub fn decrease_reputation(&self, admin: &Address, account: &Address, amount: i32) {
+        admin.require_auth();
+        self.env.mock_all_auths();
+        let client = soroban_sdk::contractclient::ContractClient::new(&self.env, &self.address);
+        client.call(&symbol_short!("decrease_reputation"), &(admin, account, amount));
+    }
+
+    /// Get the reputation of an account.
+    pub fn get_reputation(&self, account: &Address) -> i32 {
+        let client = soroban_sdk::contractclient::ContractClient::new(&self.env, &self.address);
+        client.call(&symbol_short!("get_reputation"), &(account,)).unwrap().try_into().unwrap()
+    }
+
+    /// Try to increase the reputation of an account by a given amount. Returns Ok(()) if successful, Err(()) if failed.
+    pub fn try_increase_reputation(&self, admin: &Address, account: &Address, amount: i32) -> Result<(), ()> {
+        admin.require_auth();
+        self.env.mock_all_auths();
+        let client = soroban_sdk::contractclient::ContractClient::new(&self.env, &self.address);
+        match client.try_call(&symbol_short!("increase_reputation"), &(admin, account, amount)) {
+            Ok(_) => Ok(()),
+            Err(_) => Err(()),
+        }
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::env::MockEnv;
+    use soroban_sdk::Address;
+    use std::panic;
+
+    #[test]
+    fn test_reputation_contract() {
+        let env = MockEnv::builder().build();
+        let admin = env.account("admin");
+        let user = env.account("user");
+
+        // Deploy the reputation contract
+        let address = env.register_contract(None, ReputationContract::new());
+        let client = ReputationContractClient::new(&env.inner(), &address);
+
+        // Initialize with admin
+        client.initialize(&admin.address());
+
+        // Set reputation for user
+        client.set_reputation(&admin.address(), &user.address(), 100);
+        assert_eq!(client.get_reputation(&user.address()), 100);
+
+        // Increase reputation
+        client.increase_reputation(&admin.address(), &user.address(), 50);
+        assert_eq!(client.get_reputation(&user.address()), 150);
+
+        // Decrease reputation
+        client.decrease_reputation(&admin.address(), &user.address(), 30);
+        assert_eq!(client.get_reputation(&user.address()), 120);
+
+        // Non-admin cannot change reputation
+        env.set_auths(&[user.auth()]);
+        let result = panic::catch_unwind(|| {
+            client.increase_reputation(&user.address(), &user.address(), 10);
+        });
+        assert!(result.is_err());
+    }
+}
\ No newline at end of file