diff --git a/public/UnityBuild/bubbles/Build/prod.data b/public/UnityBuild/bubbles/Build/prod.data
index ddb6bc5..71bef42 100644
Binary files a/public/UnityBuild/bubbles/Build/prod.data and b/public/UnityBuild/bubbles/Build/prod.data differ
diff --git a/public/UnityBuild/bubbles/Build/prod.wasm b/public/UnityBuild/bubbles/Build/prod.wasm
index 8aafdd9..44e6cb1 100644
Binary files a/public/UnityBuild/bubbles/Build/prod.wasm and b/public/UnityBuild/bubbles/Build/prod.wasm differ
diff --git a/src/app/page.tsx b/src/app/page.tsx
index fce235c..d57e86c 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -3,6 +3,7 @@
 import Footer from "@/components/Footer";
 import Header from "@/components/Header";
 import HeroSection from "@/components/HeroSection";
+import Leaderboard from "@/components/Leaderboard";
 // import Leaderboard from "@/components/Leaderboard";
 import { PrivyProvider } from "@privy-io/react-auth";
 import { toSolanaWalletConnectors } from "@privy-io/react-auth/solana";
@@ -37,7 +38,7 @@ export default function Home() {
           <Toaster position="top-right" richColors />
           <Header />
           <HeroSection />
-          {/* <Leaderboard /> */}
+          <Leaderboard />
           <Footer />
         </> 
       </PrivyProvider>
diff --git a/src/components/GameSelection.tsx b/src/components/GameSelection.tsx
index 147de05..cc8e889 100644
--- a/src/components/GameSelection.tsx
+++ b/src/components/GameSelection.tsx
@@ -22,13 +22,15 @@ export function GameSelection({ games, selectedGame, onSelect }: GameSelectionPr
           }`}
           onClick={() => game.isAvailable && onSelect(game)}
         >
-          <Image
-            src={game.thumbnail}
-            alt={game.name}
-            width={100}
-            height={100}
-            className="mb-2 rounded-md"
-          />
+          <div className="flex justify-center">
+            <Image
+              src={game.thumbnail}
+              alt={game.name}
+              width={100}
+              height={100}
+              className="mb-2 rounded-md"
+            />
+          </div>
           <h3 className="text-center text-sm">{game.name}</h3>
           {!game.isAvailable && (
             <p className="text-center text-xs text-gray-500 mt-1">Coming Soon</p>
diff --git a/src/components/PrivyButton.tsx b/src/components/PrivyButton.tsx
index 6f6a996..90c862d 100644
--- a/src/components/PrivyButton.tsx
+++ b/src/components/PrivyButton.tsx
@@ -13,6 +13,8 @@ import { games } from "@/data/games";
 import { WAGER_PRIZE_MULT } from "@/shared/constants";
 import { EXPLORER_ADDRESS_TEMPLATE } from "@/data/shared";
 
+const ENABLE_REFERRAL_SYSTEM = false; // Toggle for referral system visibility
+
 interface GameHistory {
   ended_time: string;
   address: string;
@@ -38,6 +40,27 @@ interface Opponent {
   x_profile_url: string;
 }
 
+interface Referee {
+  ref_id: string;
+  id: string;
+  username: string;
+  bio: string;
+  x_profile_url: string;
+  referred_id: string;
+  profilePicture?: string;
+  joinedAt?: string;
+  earnings?: number;
+}
+
+interface ApiReferee {
+  ref_id: string;
+  id: string;
+  username: string;
+  bio: string;
+  x_profile_url: string;
+  referred_id: string;
+}
+
 const GameHistoryItem = ({ game, user, gameImages, defaultPFP, failedImages, setFailedImages, handleViewTxClick }: { 
   game: GameHistory, 
   user: User, 
@@ -166,11 +189,17 @@ export default function PrivyButton() {
   const defaultPFP = '/duelfiassets/PFP (1).png';
 
   const [username, setUsername] = useState("Tester");
+  const [refId, setRefId] = useState(0);
   const [bio, setBio] = useState("");
   const [avatar, setAvatar] = useState<string | null>(null);
 
   const [isUsernameClaimModalOpen, setIsUsernameClaimModalOpen] = useState(false);
   const [newUsername, setNewUsername] = useState("");
+  const [referralId, setReferralId] = useState("");
+
+  const [isReferreesModalOpen, setIsReferreesModalOpen] = useState(false);
+  const [referrees, setReferrees] = useState<Referee[]>([]);
+  const [referralStats, setReferralStats] = useState({ earnings: 0, count: 0 });
 
   const modalRef = useRef<HTMLDivElement>(null);
   const updateSolWallet = () => {
@@ -239,6 +268,7 @@ export default function PrivyButton() {
         } else {
           setUsername(data.username || "Tester");
           setBio(data.bio || "");
+          setRefId(data.ref_id || 0);
 
           // Check if the user has a profile picture URL and update in database
           const customProfileUrl = `${API_URL}profile_pics/${user.id}.jpg`;
@@ -341,16 +371,31 @@ export default function PrivyButton() {
     }
   };
 
+  useEffect(() => {
+    // Check for referral ID in URL when modal opens
+    if (isUsernameClaimModalOpen) {
+      const urlParams = new URLSearchParams(window.location.search);
+      const refId = urlParams.get('ref');
+      if (refId) {
+        setReferralId(refId);
+      }
+    }
+  }, [isUsernameClaimModalOpen]);
 
   const handleUsernameClaim = async () => {
     if (newUsername.trim()) {
-      const apiUrl = `${API_URL}register.php?id=${user?.id}&username=${newUsername}`;
       try {
-        const response = await fetch(apiUrl);
-        const data = await response.text();
-        if (data == "0") {
+        // First register the user
+        const registerUrl = `${API_URL}register.php?id=${user?.id}&username=${newUsername}&ref_id=${referralId}`;
+        const registerResponse = await fetch(registerUrl);
+        const registerData = await registerResponse.text();
+        
+        if (registerData == "0") {
+          
+          
           toast.success("Username claimed successfully!");
           setIsUsernameClaimModalOpen(false);
+          fetchUserData(); // Refresh user data to get the new username
         } else {
           toast.error("Failed to claim username.");
         }
@@ -416,6 +461,7 @@ export default function PrivyButton() {
           );
 
           setGameImages(gameDataWithImages);
+          fetchReferralData();
         } catch (err) {
           console.error("Error fetching game history", err);
         } finally {
@@ -431,6 +477,32 @@ export default function PrivyButton() {
     window.open(`${EXPLORER_ADDRESS_TEMPLATE.replace("{address}",address)}`, "_blank");
   };
 
+  const fetchReferralData = async () => {
+    if (!refId) return;
+    
+    try {
+      const response = await axios.get<ApiReferee[]>(`${API_URL}get_users_by_referral.php?id=${refId}`);
+      const referreesData = response.data || [];
+      
+      // Transform the data to match our Referee interface
+      const transformedReferrees = referreesData.map((ref: ApiReferee) => ({
+        ...ref,
+        profilePicture: ref.x_profile_url,
+        joinedAt: new Date().toISOString(), // Since join date isn't provided in API
+        earnings: 0.01 // Each referral gives 0.01 SOL
+      }));
+
+      setReferrees(transformedReferrees);
+      setReferralStats({
+        earnings: transformedReferrees.length * 0.01, // 0.01 SOL per referral
+        count: transformedReferrees.length
+      });
+    } catch (error) {
+      console.error('Failed to fetch referral data:', error);
+      toast.error('Failed to load referral data');
+    }
+  };
+
   return (
     <>
       {user ? (
@@ -639,6 +711,69 @@ export default function PrivyButton() {
             {/* Divider */}
             <hr className="border-gray-600" />
 
+            {/* Referral Section */}
+            {ENABLE_REFERRAL_SYSTEM && (
+              <div>
+                <h3 className="text-xl font-bold mb-4">Referral Program</h3>
+                <div className="bg-gray-800 p-4 rounded-lg">
+                  <div className="flex items-center justify-between mb-4">
+                    <div className="flex items-center gap-2">
+                      <p className="text-gray-400 text-sm">Your Referral ID:</p>
+                      <p className="font-mono text-sm">{user?.id?.slice(0, 8)}</p>
+                      <button
+                        onClick={() => {
+                          navigator.clipboard.writeText(user?.id || '');
+                          toast.success('Referral ID copied!');
+                        }}
+                        className="text-gray-400 hover:text-white transition p-1"
+                      >
+                        <svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                          <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8 5H6a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2v-1M8 5a2 2 0 002 2h2a2 2 0 002-2M8 5a2 2 0 012-2h2a2 2 0 012 2m0 0h2a2 2 0 012 2v3m2 4H10m0 0l3-3m-3 3l3 3" />
+                        </svg>
+                      </button>
+                    </div>
+                    <button
+                      onClick={() => {
+                        const referralLink = `${window.location.origin}?ref=${user?.id}`;
+                        navigator.clipboard.writeText(referralLink);
+                        toast.success('Referral link copied!');
+                      }}
+                      className="bg-[rgb(248,144,22)] hover:bg-[rgb(248,200,100)] text-black px-4 py-2 rounded-md text-sm font-semibold flex items-center gap-2"
+                    >
+                      <svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M8.684 13.342C8.886 12.938 9 12.482 9 12c0-.482-.114-.938-.316-1.342m0 2.684a3 3 0 110-2.684m0 2.684l6.632 3.316m-6.632-6l6.632-3.316m0 0a3 3 0 105.367-2.684 3 3 0 00-5.367 2.684zm0 9.316a3 3 0 105.368 2.684 3 3 0 00-5.368-2.684z" />
+                      </svg>
+                      Share
+                    </button>
+                  </div>
+                  <div className="flex items-center justify-between">
+                    <div className="flex items-center gap-4">
+                      <div>
+                        <p className="text-gray-400 text-xs">Referral Earnings</p>
+                        <p className="text-lg font-semibold">{referralStats.earnings.toFixed(2)} SOL</p>
+                      </div>
+                      <div>
+                        <p className="text-gray-400 text-xs">Total Referrals</p>
+                        <p className="text-lg font-semibold">{referralStats.count}</p>
+                      </div>
+                    </div>
+                    <button
+                      onClick={() => setIsReferreesModalOpen(true)}
+                      className="bg-gray-700 hover:bg-gray-600 text-white px-4 py-2 rounded-md text-sm font-semibold flex items-center gap-2"
+                    >
+                      <svg xmlns="http://www.w3.org/2000/svg" className="h-4 w-4" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M17 20h5v-2a3 3 0 00-5.356-1.857M17 20H7m10 0v-2c0-.656-.126-1.283-.356-1.857M7 20H2v-2a3 3 0 015.356-1.857M7 20v-2c0-.656.126-1.283.356-1.857m0 0a5.002 5.002 0 019.288 0M15 7a3 3 0 11-6 0 3 3 0 016 0zm6 3a2 2 0 11-4 0 2 2 0 014 0zM7 10a2 2 0 11-4 0 2 2 0 014 0z" />
+                      </svg>
+                      View Referrees
+                    </button>
+                  </div>
+                </div>
+              </div>
+            )}
+
+            {/* Divider */}
+            <hr className="border-gray-600" />
+
             {/* Game History Section */}
             <div>
               <h3 className="text-xl font-bold mb-4">Game History</h3>
@@ -684,18 +819,78 @@ export default function PrivyButton() {
         </div>
       )}
 
+      {/* Referrees Modal */}
+      {ENABLE_REFERRAL_SYSTEM && isReferreesModalOpen && (
+        <div className="fixed inset-0 bg-black/70 flex justify-center items-center z-50">
+          <div className="bg-[rgb(30,30,30)] text-white w-full max-w-lg p-6 rounded-2xl shadow-lg space-y-6">
+            <div className="flex justify-between items-center">
+              <h2 className="text-2xl font-bold">Your Referrees</h2>
+              <button
+                onClick={() => setIsReferreesModalOpen(false)}
+                className="text-gray-400 hover:text-white transition duration-300 hover:scale-105"
+              >
+                <svg xmlns="http://www.w3.org/2000/svg" className="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                  <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M6 18L18 6M6 6l12 12" />
+                </svg>
+              </button>
+            </div>
+            <div className="max-h-96 overflow-y-auto space-y-4">
+              {referrees.length === 0 ? (
+                <p className="text-gray-500 text-center py-4">No referrees yet.</p>
+              ) : (
+                referrees.map((referee, index) => (
+                  <div key={index} className="flex items-center justify-between bg-gray-800 p-3 rounded-lg">
+                    <div className="flex items-center gap-3">
+                      <Image
+                        src={referee.profilePicture || defaultPFP}
+                        alt="Profile"
+                        width={40}
+                        height={40}
+                        className="rounded-full border border-gray-700 object-cover"
+                      />
+                      <div>
+                        <p className="font-semibold">{referee.username}</p>
+                        <p className="text-sm text-gray-400">Joined {referee.joinedAt ? new Date(referee.joinedAt).toLocaleDateString() : 'Recently'}</p>
+                      </div>
+                    </div>
+                    <p className="text-sm text-gray-400">{referee.earnings} SOL earned</p>
+                  </div>
+                ))
+              )}
+            </div>
+          </div>
+        </div>
+      )}
+
       {/* Username Claim Modal */}
       {isUsernameClaimModalOpen && (
         <div className="fixed inset-0 bg-black/70 flex justify-center items-center z-50">
           <div className="bg-[rgb(30,30,30)] text-white w-full max-w-lg p-6 rounded-2xl shadow-lg space-y-6">
             <h2 className="text-2xl font-bold">Claim Your Username</h2>
-            <input
-              type="text"
-              value={newUsername}
-              onChange={(e) => setNewUsername(e.target.value)}
-              className="w-full bg-[rgb(10,10,10)] text-white p-2 rounded-md"
-              placeholder="Enter your new username"
-            />
+            <div className="space-y-4">
+              <div>
+                <label className="block text-sm text-gray-400 mb-1">Username</label>
+                <input
+                  type="text"
+                  value={newUsername}
+                  onChange={(e) => setNewUsername(e.target.value)}
+                  className="w-full bg-[rgb(10,10,10)] text-white p-2 rounded-md"
+                  placeholder="Enter your new username"
+                />
+              </div>
+              {ENABLE_REFERRAL_SYSTEM && (
+                <div>
+                  <label className="block text-sm text-gray-400 mb-1">Referral ID (Optional)</label>
+                  <input
+                    type="text"
+                    value={referralId}
+                    onChange={(e) => setReferralId(e.target.value)}
+                    className="w-full bg-[rgb(10,10,10)] text-white p-2 rounded-md"
+                    placeholder="Enter referral ID if you have one"
+                  />
+                </div>
+              )}
+            </div>
             <button
               onClick={handleUsernameClaim}
               className="w-full bg-[rgb(248,144,22)] hover:bg-orange-400 text-white px-4 py-2 rounded-md transition duration-500 hover:scale-105"
diff --git a/src/shared/data_fetcher.ts b/src/shared/data_fetcher.ts
index ca59159..eecb44e 100644
--- a/src/shared/data_fetcher.ts
+++ b/src/shared/data_fetcher.ts
@@ -1,4 +1,5 @@
-import { API_URL } from "@/data/shared";
+import { API_URL, CLUSTER_URL } from "@/data/shared";
+import { clusterApiUrl } from "@solana/web3.js";
 
 export async function fetchUserById(id: string) {
   const url = `${API_URL}get_user_by_id.php?id=${id}`;
@@ -9,7 +10,8 @@ export async function fetchUserById(id: string) {
   
 export async function showNewGameNotification(username:string, game:string, wager:string){
   try{
-    await fetch(`${API_URL}send_telegram_notification.php?username=${username}&wager=${wager}&game=${game}`)
+    const isDevnet = CLUSTER_URL === clusterApiUrl("devnet");
+    await fetch(`${API_URL}send_telegram_notification.php?username=${username}&wager=${wager}&game=${game}&devnet=${isDevnet ? "1" : "0"}`)
   }catch(error){
     console.error("Error showing new game notification:", error);
   }