diff --git a/www/html/Game/public/js/play.js b/www/html/Game/public/js/play.js
index 8fad99b..d68412e 100644
--- a/www/html/Game/public/js/play.js
+++ b/www/html/Game/public/js/play.js
@@ -29,6 +29,8 @@
   const QUIZ_QUESTION_MISSION_MAP_ID = 'mng8a80o';
   /** Stack ซ้อนตึก — ฉากภารกิจ (HOWTO → นับถอยหลัง → เล่น → สรุป) รูปใน `/Game/img/TowerBlock` */
   const STACK_TOWER_MISSION_MAP_ID = 'mnn93hpi';
+  /** ครบชั้นนี้ขึ้นไป — ยกจุดแกว่ง/เชือกขึ้น (world px) ป้องกันชนกองสูง (เฉพาะ Tower mission) */
+  const STACK_TOWER_SWING_LIFT_FROM_LAYER = 9;
   /** Violent Crime mission: asteroid strikes ship → invuln → 3 strikes = eliminated */
   const SPACE_SHOOTER_MISSION_MAX_ASTEROID_HITS = 3;
   const SPACE_SHOOTER_MISSION_HIT_INVULN_MS = 1400;
@@ -6553,6 +6555,16 @@
     return { enabled: raw.enabled !== false, pxPerLayer, maxPx };
   }
 
+  /** ยกจุดยึดเชือกขึ้นเมื่อหอสูง (y ลดลง = สูงขึ้นในโลก) — เฉพาะ mnn93hpi */
+  function getStackTowerSwingLiftWorldPx(layerCount, layerWorldHPx) {
+    if (!isStackTowerMissionUiMapPlay()) return 0;
+    const n = Math.floor(Number(layerCount) || 0);
+    if (n < STACK_TOWER_SWING_LIFT_FROM_LAYER) return 0;
+    const lh = Math.max(10, Number(layerWorldHPx) || Math.max(14, (tileSize || 32) * 0.3));
+    const tiers = n - (STACK_TOWER_SWING_LIFT_FROM_LAYER - 1);
+    return Math.min(lh * 20, tiers * lh * 0.98);
+  }
+
   /** world px ตามความสูงหอ (mnn93hpi) — ใช้เลื่อนกล้องให้บล็อก/ฉากไปกับมุมมอง */
   function getStackTowerBgScrollHeightBoostPx() {
     if (!isStackTowerMissionUiMapPlay() || !stackMini) return 0;
@@ -6863,29 +6875,31 @@
     const tw = m.widthTiles * tileSize;
     const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
     const lh = m.layerWorldH || Math.max(14, tileSize * 0.3);
+    const swingLift = getStackTowerSwingLiftWorldPx(m.layers.length, lh);
+    const swingAttachY = m.swingWorldY - swingLift;
     let y1 = m.floorWorldY - (m.layers.length + 1) * lh;
-    if (y1 <= m.swingWorldY) y1 = m.swingWorldY + lh * 0.55;
+    if (y1 <= swingAttachY) y1 = swingAttachY + lh * 0.55;
     const landOff = hit.landOffsetTiles || 0;
     const landCxWorld = (m.topCenterX + landOff) * tileSize;
     const xLeft0 = swingXW - tw / 2;
     const xLeft1 = landCxWorld - tw / 2;
     const offN = Math.min(1, Math.abs(landOff) / Math.max(0.01, m.swingAmp));
-    const dur = Math.max(400, Math.min(1280, 240 + (y1 - m.swingWorldY) * 0.92 + offN * 560));
+    const dur = Math.max(400, Math.min(1280, 240 + (y1 - swingAttachY) * 0.92 + offN * 560));
     const tiltMax = hit.miss
       ? 0.28 * (0.25 + offN)
       : 0.16 * offN * (hit.perfect ? 0.1 : 1);
     const isHumanPreview = !!(previewActor && previewActor.human);
     const botIdPreview = previewActor && previewActor.botId ? previewActor.botId : null;
-    const cableTopYRel = Math.max(0, m.swingWorldY - tileSize * 6);
+    const cableTopYRel = Math.max(0, swingAttachY - tileSize * 6);
     const craneXRel = m.craneWorldX != null ? m.craneWorldX : m.topCenterX * tileSize;
-    const releaseRopeAng = Math.atan2(m.swingWorldY - cableTopYRel, swingXW - craneXRel);
+    const releaseRopeAng = Math.atan2(swingAttachY - cableTopYRel, swingXW - craneXRel);
     stackFall = {
       t0: performance.now(),
       dur,
       xLeft0,
       xLeft1,
       tw,
-      y0: m.swingWorldY,
+      y0: swingAttachY,
       y1,
       hit,
       tiltMax,
@@ -6894,7 +6908,7 @@
       previewBotId: botIdPreview,
       releaseRopeAng,
       releaseAttachWorldX: swingXW,
-      releaseAttachWorldY: m.swingWorldY,
+      releaseAttachWorldY: swingAttachY,
     };
     return true;
   }
@@ -7060,7 +7074,9 @@
     const layerWorldH = m.layerWorldH || Math.max(14, tileSize * 0.3);
     const stripH = m.blockStripH || Math.max(16, tileSize * 0.32);
     const floorY = m.floorWorldY;
-    const guideTopY = Math.max(0, m.swingWorldY - tileSize * 6.5);
+    const swingLiftDraw = getStackTowerSwingLiftWorldPx(m.layers.length, layerWorldH);
+    const swingDrawY = m.swingWorldY - swingLiftDraw;
+    const guideTopY = Math.max(0, swingDrawY - tileSize * 6.5);
     const [gtx, gty] = worldToScreen(m.topCenterX * tileSize, guideTopY);
     const [gbx, gby] = worldToScreen(m.topCenterX * tileSize, floorY);
     ctx.strokeStyle = 'rgba(255,255,255,0.22)';
@@ -7116,7 +7132,7 @@
     } else {
       const twWorld = m.widthTiles * tileSize;
       const drawStripPx = stripH * zoom;
-      const cableTopY = Math.max(0, m.swingWorldY - tileSize * 6);
+      const cableTopY = Math.max(0, swingDrawY - tileSize * 6);
       const craneX = m.craneWorldX != null ? m.craneWorldX : m.topCenterX * tileSize;
       let blockLeftWorld;
       let blockTopWorld;
@@ -7131,7 +7147,7 @@
       } else {
         const swingXW = (m.topCenterX + m.swingAmp * Math.sin(m.phase)) * tileSize;
         blockLeftWorld = swingXW - twWorld / 2;
-        blockTopWorld = m.swingWorldY;
+        blockTopWorld = swingDrawY;
       }
       const cxMid = blockLeftWorld + twWorld / 2;
       const [tcx, tcy] = worldToScreen(craneX, cableTopY);
diff --git a/www/html/Game/public/play.html b/www/html/Game/public/play.html
index 07ac273..af9f0b4 100644
--- a/www/html/Game/public/play.html
+++ b/www/html/Game/public/play.html
@@ -2009,7 +2009,7 @@
   </div>
   <script src="/Game/socket.io/socket.io.js"></script>
   <script src="js/version.js?v=0.0184"></script>
-  <script src="js/play.js?v=0.270"></script>
+  <script src="js/play.js?v=0.271"></script>
   <div class="version-tag">v —</div>
 </body>
 </html>