diff --git a/admin/index.php b/admin/index.php
index 0e14c4d..5b9e026 100644
--- a/admin/index.php
+++ b/admin/index.php
@@ -811,6 +811,10 @@ tr:hover td{background:rgba(255,255,255,.015)}
         <label class="gm-edit-label">Player URL * <span style="font-weight:400;color:var(--text2)">shown to players — opens the game</span></label>
         <input class="fi-sm" id="gf-player-url" type="url" placeholder="https://game.example.com/play" style="width:100%;padding:10px 12px">
       </div>
+      <div style="margin-bottom:10px">
+        <label class="gm-edit-label">Username URL Param <span style="font-weight:400;color:var(--text2)">— optional: query param name the platform uses to pre-fill login (e.g. <code style="background:rgba(255,255,255,.07);padding:1px 5px;border-radius:3px">username</code>)</span></label>
+        <input class="fi-sm" id="gf-alias-param" type="text" placeholder="e.g. username, user, login" maxlength="50" style="width:100%;padding:10px 12px">
+      </div>
       <!-- Agent Fields — EDIT mode (master admin only) -->
       <div id="gf-agent-edit" style="background:rgba(155,93,229,0.06);border:1px solid rgba(155,93,229,0.2);border-radius:8px;padding:12px 14px;margin-bottom:10px;display:none">
         <div style="font-size:12px;font-weight:700;color:var(--purple);letter-spacing:1px;text-transform:uppercase;margin-bottom:10px">🔐 Agent Info — Admin Only</div>
@@ -3051,8 +3055,9 @@ function editGame(id) {
   document.getElementById('gf-name').value      = g.name;
   document.getElementById('gf-slug').value      = g.slug;
   document.getElementById('gf-slug').disabled   = true;
-  document.getElementById('gf-player-url').value = g.player_url;
-  document.getElementById('gf-color').value      = g.color || '#f0c040';
+  document.getElementById('gf-player-url').value  = g.player_url;
+  document.getElementById('gf-alias-param').value = g.url_alias_param || '';
+  document.getElementById('gf-color').value        = g.color || '#f0c040';
   document.getElementById('gf-color-hex').value  = g.color || '#f0c040';
   document.getElementById('gf-sort').value       = g.sort_order;
   document.getElementById('gf-active').value     = g.is_active;
@@ -3171,8 +3176,9 @@ async function saveGame() {
     id:          id ? parseInt(id) : undefined,
     name:           document.getElementById('gf-name').value.trim(),
     slug:           document.getElementById('gf-slug').value.trim(),
-    player_url:     document.getElementById('gf-player-url').value.trim(),
-    agent_link:     document.getElementById('gf-agent-link').value.trim(),
+    player_url:       document.getElementById('gf-player-url').value.trim(),
+    url_alias_param:  document.getElementById('gf-alias-param').value.trim(),
+    agent_link:       document.getElementById('gf-agent-link').value.trim(),
     agent_login:    document.getElementById('gf-agent-login').value.trim(),
     agent_password: document.getElementById('gf-agent-password').value.trim(),
     games_link:     document.getElementById('gf-games-link').value.trim(),
diff --git a/api/platforms.php b/api/platforms.php
index 72935c0..dbeddc5 100644
--- a/api/platforms.php
+++ b/api/platforms.php
@@ -12,14 +12,14 @@ switch ($action) {
 
     // ── Public: active platforms for player app ───────────
     case 'list':
-        $stmt = db()->query("SELECT slug,name,player_url,color,icon_path FROM platforms WHERE is_active=1 AND is_deleted=0 ORDER BY sort_order ASC, id ASC");
+        $stmt = db()->query("SELECT slug,name,player_url,url_alias_param,color,icon_path FROM platforms WHERE is_active=1 AND is_deleted=0 ORDER BY sort_order ASC, id ASC");
         $rows = $stmt->fetchAll();
-        // Normalize to match old CFG format
         $out = array_map(fn($r) => [
-            'id'    => $r['slug'],
-            'name'  => $r['name'],
-            'url'   => $r['player_url'],
-            'color' => $r['color'],
+            'id'          => $r['slug'],
+            'name'        => $r['name'],
+            'url'         => $r['player_url'],
+            'alias_param' => $r['url_alias_param'] ?? '',
+            'color'       => $r['color'],
         ], $rows);
         echo json_encode(['success'=>true, 'platforms'=>$out]);
         break;
@@ -35,25 +35,26 @@ switch ($action) {
     case 'create':
         if (!$isAdmin || $_SERVER['REQUEST_METHOD'] !== 'POST') { echo json_encode(['success'=>false,'error'=>'Forbidden']); exit; }
         $d = json_decode(file_get_contents('php://input'), true);
-        $slug           = preg_replace('/[^a-z0-9_]/', '', strtolower(trim($d['slug'] ?? '')));
-        $name           = substr(trim($d['name']           ?? ''), 0, 100);
-        $player_url     = substr(trim($d['player_url']     ?? ''), 0, 500);
-        $agent_link     = substr(trim($d['agent_link']     ?? ''), 0, 500);
-        $agent_login    = substr(trim($d['agent_login']    ?? ''), 0, 200);
-        $agent_password = substr(trim($d['agent_password'] ?? ''), 0, 200);
-        $games_link     = substr(trim($d['games_link']     ?? ''), 0, 500);
-        $agent_guide       = trim($d['agent_guide'] ?? '');
-        $sub_agent_login   = substr(trim($d['sub_agent_login']    ?? ''), 0, 200);
-        $sub_agent_password= substr(trim($d['sub_agent_password'] ?? ''), 0, 200);
-        $cashier_login     = substr(trim($d['cashier_login']      ?? ''), 0, 200);
-        $cashier_password  = substr(trim($d['cashier_password']   ?? ''), 0, 200);
-        $color          = preg_match('/^#[0-9a-fA-F]{3,8}$/', $d['color'] ?? '') ? $d['color'] : '#f0c040';
-        $sort_order     = (int)($d['sort_order'] ?? 99);
-        $is_active      = isset($d['is_active']) ? (int)(bool)$d['is_active'] : 1;
+        $slug            = preg_replace('/[^a-z0-9_]/', '', strtolower(trim($d['slug'] ?? '')));
+        $name            = substr(trim($d['name']           ?? ''), 0, 100);
+        $player_url      = substr(trim($d['player_url']     ?? ''), 0, 500);
+        $url_alias_param = preg_replace('/[^a-zA-Z0-9_\-]/', '', trim($d['url_alias_param'] ?? ''));
+        $agent_link      = substr(trim($d['agent_link']     ?? ''), 0, 500);
+        $agent_login     = substr(trim($d['agent_login']    ?? ''), 0, 200);
+        $agent_password  = substr(trim($d['agent_password'] ?? ''), 0, 200);
+        $games_link      = substr(trim($d['games_link']     ?? ''), 0, 500);
+        $agent_guide        = trim($d['agent_guide'] ?? '');
+        $sub_agent_login    = substr(trim($d['sub_agent_login']    ?? ''), 0, 200);
+        $sub_agent_password = substr(trim($d['sub_agent_password'] ?? ''), 0, 200);
+        $cashier_login      = substr(trim($d['cashier_login']      ?? ''), 0, 200);
+        $cashier_password   = substr(trim($d['cashier_password']   ?? ''), 0, 200);
+        $color           = preg_match('/^#[0-9a-fA-F]{3,8}$/', $d['color'] ?? '') ? $d['color'] : '#f0c040';
+        $sort_order      = (int)($d['sort_order'] ?? 99);
+        $is_active       = isset($d['is_active']) ? (int)(bool)$d['is_active'] : 1;
         if (!$slug || !$name || !$player_url) { echo json_encode(['success'=>false,'error'=>'Slug, name, and player URL are required']); exit; }
         try {
-            $stmt = db()->prepare("INSERT INTO platforms (slug,name,player_url,agent_link,agent_login,agent_password,games_link,agent_guide,sub_agent_login,sub_agent_password,cashier_login,cashier_password,color,sort_order,is_active) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
-            $stmt->execute([$slug,$name,$player_url,$agent_link,$agent_login,$agent_password,$games_link,$agent_guide,$sub_agent_login,$sub_agent_password,$cashier_login,$cashier_password,$color,$sort_order,$is_active]);
+            $stmt = db()->prepare("INSERT INTO platforms (slug,name,player_url,url_alias_param,agent_link,agent_login,agent_password,games_link,agent_guide,sub_agent_login,sub_agent_password,cashier_login,cashier_password,color,sort_order,is_active) VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)");
+            $stmt->execute([$slug,$name,$player_url,$url_alias_param,$agent_link,$agent_login,$agent_password,$games_link,$agent_guide,$sub_agent_login,$sub_agent_password,$cashier_login,$cashier_password,$color,$sort_order,$is_active]);
             echo json_encode(['success'=>true,'id'=>db()->lastInsertId()]);
         } catch (Exception $e) {
             echo json_encode(['success'=>false,'error'=>'Slug already exists or DB error']);
@@ -64,30 +65,31 @@ switch ($action) {
     case 'update':
         if (!$isAdmin || $_SERVER['REQUEST_METHOD'] !== 'POST') { echo json_encode(['success'=>false,'error'=>'Forbidden']); exit; }
         $d = json_decode(file_get_contents('php://input'), true);
-        $id             = (int)($d['id'] ?? 0);
-        $name           = substr(trim($d['name']           ?? ''), 0, 100);
-        $player_url     = substr(trim($d['player_url']     ?? ''), 0, 500);
-        $agent_link     = substr(trim($d['agent_link']     ?? ''), 0, 500);
-        $agent_login    = substr(trim($d['agent_login']    ?? ''), 0, 200);
-        $agent_password = substr(trim($d['agent_password'] ?? ''), 0, 200);
-        $games_link     = substr(trim($d['games_link']     ?? ''), 0, 500);
-        $agent_guide       = trim($d['agent_guide'] ?? '');
-        $sub_agent_login   = substr(trim($d['sub_agent_login']    ?? ''), 0, 200);
-        $sub_agent_password= substr(trim($d['sub_agent_password'] ?? ''), 0, 200);
-        $cashier_login     = substr(trim($d['cashier_login']      ?? ''), 0, 200);
-        $cashier_password  = substr(trim($d['cashier_password']   ?? ''), 0, 200);
-        $color          = preg_match('/^#[0-9a-fA-F]{3,8}$/', $d['color'] ?? '') ? $d['color'] : '#f0c040';
-        $sort_order     = (int)($d['sort_order'] ?? 99);
-        $is_active      = (int)(bool)($d['is_active'] ?? 1);
+        $id              = (int)($d['id'] ?? 0);
+        $name            = substr(trim($d['name']           ?? ''), 0, 100);
+        $player_url      = substr(trim($d['player_url']     ?? ''), 0, 500);
+        $url_alias_param = preg_replace('/[^a-zA-Z0-9_\-]/', '', trim($d['url_alias_param'] ?? ''));
+        $agent_link      = substr(trim($d['agent_link']     ?? ''), 0, 500);
+        $agent_login     = substr(trim($d['agent_login']    ?? ''), 0, 200);
+        $agent_password  = substr(trim($d['agent_password'] ?? ''), 0, 200);
+        $games_link      = substr(trim($d['games_link']     ?? ''), 0, 500);
+        $agent_guide        = trim($d['agent_guide'] ?? '');
+        $sub_agent_login    = substr(trim($d['sub_agent_login']    ?? ''), 0, 200);
+        $sub_agent_password = substr(trim($d['sub_agent_password'] ?? ''), 0, 200);
+        $cashier_login      = substr(trim($d['cashier_login']      ?? ''), 0, 200);
+        $cashier_password   = substr(trim($d['cashier_password']   ?? ''), 0, 200);
+        $color           = preg_match('/^#[0-9a-fA-F]{3,8}$/', $d['color'] ?? '') ? $d['color'] : '#f0c040';
+        $sort_order      = (int)($d['sort_order'] ?? 99);
+        $is_active       = (int)(bool)($d['is_active'] ?? 1);
         if (!$id || !$name || !$player_url) { echo json_encode(['success'=>false,'error'=>'ID, name, and player URL required']); exit; }
         if ($isMasterAdmin) {
             // Master admin: update all fields including agent info
-            db()->prepare("UPDATE platforms SET name=?,player_url=?,agent_link=?,agent_login=?,agent_password=?,games_link=?,agent_guide=?,sub_agent_login=?,sub_agent_password=?,cashier_login=?,cashier_password=?,color=?,sort_order=?,is_active=? WHERE id=?")
-                 ->execute([$name,$player_url,$agent_link,$agent_login,$agent_password,$games_link,$agent_guide,$sub_agent_login,$sub_agent_password,$cashier_login,$cashier_password,$color,$sort_order,$is_active,$id]);
+            db()->prepare("UPDATE platforms SET name=?,player_url=?,url_alias_param=?,agent_link=?,agent_login=?,agent_password=?,games_link=?,agent_guide=?,sub_agent_login=?,sub_agent_password=?,cashier_login=?,cashier_password=?,color=?,sort_order=?,is_active=? WHERE id=?")
+                 ->execute([$name,$player_url,$url_alias_param,$agent_link,$agent_login,$agent_password,$games_link,$agent_guide,$sub_agent_login,$sub_agent_password,$cashier_login,$cashier_password,$color,$sort_order,$is_active,$id]);
         } else {
-            // Regular admin: update only non-sensitive fields
-            db()->prepare("UPDATE platforms SET name=?,player_url=?,color=?,sort_order=?,is_active=? WHERE id=?")
-                 ->execute([$name,$player_url,$color,$sort_order,$is_active,$id]);
+            // Regular admin: update non-sensitive fields including alias param
+            db()->prepare("UPDATE platforms SET name=?,player_url=?,url_alias_param=?,color=?,sort_order=?,is_active=? WHERE id=?")
+                 ->execute([$name,$player_url,$url_alias_param,$color,$sort_order,$is_active,$id]);
         }
         echo json_encode(['success'=>true]);
         break;
diff --git a/index.php b/index.php
index 19ce328..fdd542d 100644
--- a/index.php
+++ b/index.php
@@ -661,6 +661,7 @@ body::before{content:'';position:fixed;inset:0;background-image:linear-gradient(
     </div>
     <div class="section-title"><span>PLAY NOW</span></div>
     <div class="platform-grid" id="platform-grid"></div>
+    <div id="platform-alias-toast" style="position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(10px);background:rgba(0,0,0,.88);color:#fff;font-size:14px;font-weight:700;padding:10px 18px;border-radius:24px;white-space:nowrap;opacity:0;transition:opacity .3s,transform .3s;pointer-events:none;z-index:999;border:1px solid rgba(0,229,255,.25)"></div>
   </div>
 
   <!-- ═══ BUY TOKENS (milkyswipe style) ═══ -->
@@ -1405,19 +1406,40 @@ async function refreshUser() {
 }
 
 // ─── PLATFORMS ─────────────────────────────────────────────
+function openPlatform(slug, url, aliasParam) {
+  const alias = savedAliases[slug] || '';
+  let launchUrl = url;
+  if (alias && aliasParam) {
+    const sep = url.includes('?') ? '&' : '?';
+    launchUrl = url + sep + encodeURIComponent(aliasParam) + '=' + encodeURIComponent(alias);
+  }
+  window.open(launchUrl, '_blank', 'noopener');
+  if (alias) {
+    navigator.clipboard?.writeText(alias).catch(() => {});
+    const t = document.getElementById('platform-alias-toast');
+    if (t) {
+      t.textContent = '📋 "' + alias + '" copied — paste into login';
+      t.style.opacity = '1'; t.style.transform = 'translateY(0)';
+      clearTimeout(t._timer);
+      t._timer = setTimeout(() => { t.style.opacity='0'; t.style.transform='translateY(10px)'; }, 3000);
+    }
+  }
+}
+
 function buildPlatforms() {
   if (!CFG.platforms || !CFG.platforms.length) return;
 
   const grid = document.getElementById('platform-grid');
   if (grid) {
     grid.innerHTML = CFG.platforms.map(p => `
-    <a href="${p.url}" target="_blank" class="platform-card" style="--p-color:${p.color}">
+    <div class="platform-card" style="--p-color:${p.color};cursor:pointer"
+         onclick="openPlatform('${p.id}',${JSON.stringify(p.url)},${JSON.stringify(p.alias_param||'')})">
       <div class="platform-img-wrap">
         <img src="/assets/img/${p.id}.svg" alt="${p.name}" onerror="this.style.display='none'">
       </div>
       <div class="platform-name">${p.name}</div>
       <div class="play-btn">TAP TO PLAY →</div>
-    </a>`).join('');
+    </div>`).join('');
   }
 
   // Populate selects — clear dynamic options first to prevent duplicates on re-call