diff --git a/src/include/Tetris.h b/src/include/Tetris.h
index fda3ee5..5775e74 100644
--- a/src/include/Tetris.h
+++ b/src/include/Tetris.h
@@ -55,6 +55,7 @@ struct PlayerStats
     int sweeperCharge;
     int explosiveLevel;
     int stableStructureLevel;
+    int doubleGrowthLevel;
 };
 
 struct UpgradeOption
diff --git a/src/source/TetrisLogic.cpp b/src/source/TetrisLogic.cpp
index a2343ed..5335bd6 100644
--- a/src/source/TetrisLogic.cpp
+++ b/src/source/TetrisLogic.cpp
@@ -36,7 +36,8 @@ enum UpgradeId
     UPGRADE_PRESSURE_RELIEF = 7,
     UPGRADE_SWEEPER = 8,
     UPGRADE_EXPLOSIVE_PIECE = 9,
-    UPGRADE_STABLE_STRUCTURE = 10
+    UPGRADE_STABLE_STRUCTURE = 10,
+    UPGRADE_DOUBLE_GROWTH = 11
 };
 
 static const UpgradeEntry kUpgradePool[] =
@@ -51,7 +52,8 @@ static const UpgradeEntry kUpgradePool[] =
     { UPGRADE_PRESSURE_RELIEF, -1, true, _T("\u51cf\u538b"), _T("\u7279\u6b8a"), _T("\u7acb\u5373\u6e05\u9664\u5f53\u524d\u6700\u9ad8\u5360\u7528\u884c\uff0c\u4e3a\u76d8\u9762\u817e\u51fa\u547c\u5438\u7a7a\u95f4\u3002") },
     { UPGRADE_SWEEPER, -1, true, _T("\u6e05\u626b\u8005"), _T("\u7279\u6b8a"), _T("\u7d2f\u8ba1\u6d88\u884c\u5145\u80fd\uff0c\u6536\u6ee1\u540e\u81ea\u52a8\u6e05\u9664\u5e95\u90e8 1 \u884c\u3002") },
     { UPGRADE_EXPLOSIVE_PIECE, -1, true, _T("\u7206\u7834\u65b9\u5757"), _T("\u7279\u6b8a"), _T("\u63d0\u9ad8\u7206\u7834\u65b9\u5757\u51fa\u73b0\u6982\u7387\uff0c\u843d\u5730\u65f6\u89e6\u53d1 3x3 \u6e05\u9664\u3002") },
-    { UPGRADE_STABLE_STRUCTURE, -1, true, _T("\u7a33\u5b9a\u7ed3\u6784"), _T("\u7279\u6b8a"), _T("\u843d\u5730\u540e\u5c0f\u6982\u7387\u81ea\u52a8\u586b\u8865\u90bb\u8fd1\u7a7a\u6d1e\uff0c\u63d0\u9ad8\u76d8\u9762\u7ed3\u6784\u7a33\u5b9a\u6027\u3002") }
+    { UPGRADE_STABLE_STRUCTURE, -1, true, _T("\u7a33\u5b9a\u7ed3\u6784"), _T("\u7279\u6b8a"), _T("\u843d\u5730\u540e\u5c0f\u6982\u7387\u81ea\u52a8\u586b\u8865\u90bb\u8fd1\u7a7a\u6d1e\uff0c\u63d0\u9ad8\u76d8\u9762\u7ed3\u6784\u7a33\u5b9a\u6027\u3002") },
+    { UPGRADE_DOUBLE_GROWTH, -1, true, _T("\u53cc\u500d\u6210\u957f"), _T("\u7279\u6b8a"), _T("\u989d\u5916\u63d0\u9ad8\u6d88\u884c\u5f97\u5206\u4e0e EXP \u6536\u76ca\uff0c\u6bcf\u5c42\u518d\u8ffd\u52a0 15%\u3002") }
 };
 
 static constexpr int kUpgradePoolSize = sizeof(kUpgradePool) / sizeof(kUpgradePool[0]);
@@ -208,6 +210,7 @@ static void ResetPlayerStats(PlayerStats& stats, bool useRogueRules)
     stats.sweeperCharge = 0;
     stats.explosiveLevel = 0;
     stats.stableStructureLevel = 0;
+    stats.doubleGrowthLevel = 0;
 }
 
 static int GetNextPreviewLimit()
@@ -256,6 +259,8 @@ static int GetUpgradeCurrentLevel(int upgradeId)
         return rogueStats.explosiveLevel;
     case UPGRADE_STABLE_STRUCTURE:
         return rogueStats.stableStructureLevel;
+    case UPGRADE_DOUBLE_GROWTH:
+        return rogueStats.doubleGrowthLevel;
     default:
         return 0;
     }
@@ -575,6 +580,10 @@ static void ApplyUpgradeById(int upgradeId)
         rogueStats.stableStructureLevel++;
         SetFeedbackMessage(_T("\u7a33\u5b9a\u7ed3\u6784\u5df2\u5f3a\u5316"), _T("\u540e\u7eed\u843d\u5730\u7ed3\u7b97\u65f6\u5c06\u6709\u6982\u7387\u81ea\u52a8\u8865\u6d1e\u3002"), 12);
         break;
+    case UPGRADE_DOUBLE_GROWTH:
+        rogueStats.doubleGrowthLevel++;
+        SetFeedbackMessage(_T("\u53cc\u500d\u6210\u957f\u5df2\u53e0\u52a0"), _T("\u540e\u7eed\u6d88\u884c\u7684\u5f97\u5206\u548c EXP \u6536\u76ca\u4f1a\u66f4\u9ad8\u3002"), 12);
+        break;
     default:
         break;
     }
@@ -605,6 +614,13 @@ static void ApplyLineClearResult(int linesCleared)
     int expGain = GetRogueExpByLines(linesCleared);
     expGain = expGain * rogueStats.expMultiplierPercent / 100;
 
+    if (rogueStats.doubleGrowthLevel > 0)
+    {
+        int growthMultiplierPercent = 100 + rogueStats.doubleGrowthLevel * 15;
+        scoreGain = scoreGain * growthMultiplierPercent / 100;
+        expGain = expGain * growthMultiplierPercent / 100;
+    }
+
     rogueStats.comboChain++;
     if (rogueStats.comboBonusStacks > 0 && rogueStats.comboChain > 1)
     {
diff --git a/src/source/TetrisRender.cpp b/src/source/TetrisRender.cpp
index 4f5bf4a..9590c0f 100644
--- a/src/source/TetrisRender.cpp
+++ b/src/source/TetrisRender.cpp
@@ -362,7 +362,7 @@ void TDrawScreen(HDC hdc, HWND hWnd)
             hdc,
             _T("\u7ecf\u5178\u6a21\u5f0f\uff1a\u4fdd\u6301\u539f\u7248\u4fc4\u7f57\u65af\u65b9\u5757\u73a9\u6cd5\uff0c\u4ee5\u6d88\u884c\u548c\u751f\u5b58\u4e3a\u4e3b\u3002\r\n\r\n")
             _T("Rogue \u6a21\u5f0f\uff1a\u6d88\u884c\u540e\u9664\u4e86\u83b7\u5f97\u5206\u6570\uff0c\u8fd8\u4f1a\u83b7\u5f97 EXP\u3002EXP \u8fbe\u5230\u9608\u503c\u540e\u89e6\u53d1\u5347\u7ea7\uff0c\u4ece\u4e09\u4e2a\u5f3a\u5316\u4e2d\u9009\u4e00\u4e2a\u3002\r\n\r\n")
-            _T("\u5f53\u524d\u5df2\u63a5\u5165\uff1a\u5206\u6570\u500d\u7387\u3001EXP \u500d\u7387\u3001\u6162\u901f\u4e0b\u843d\u3001Hold \u89e3\u9501\u3001\u51cf\u538b\u3001\u6e05\u626b\u8005\u3001\u7206\u7834\u65b9\u5757\u3001\u7a33\u5b9a\u7ed3\u6784\u3002\r\n\r\n")
+            _T("\u5f53\u524d\u5df2\u63a5\u5165\uff1a\u5206\u6570\u500d\u7387\u3001EXP \u500d\u7387\u3001\u6162\u901f\u4e0b\u843d\u3001Hold \u89e3\u9501\u3001\u51cf\u538b\u3001\u6e05\u626b\u8005\u3001\u7206\u7834\u65b9\u5757\u3001\u7a33\u5b9a\u7ed3\u6784\u3001\u53cc\u500d\u6210\u957f\u3002\r\n\r\n")
             _T("\u63d0\u793a\uff1a\u6682\u505c\u3001\u5931\u8d25\u548c\u5347\u7ea7\u4f1a\u8fdb\u5165\u4e0d\u540c\u754c\u9762\uff0c\u8bf7\u6839\u636e\u5c4f\u5e55\u63d0\u793a\u64cd\u4f5c\u3002"),
             -1,
             &rulesBody,
@@ -692,6 +692,13 @@ void TDrawScreen(HDC hdc, HWND hWnd)
             TextOut(hdc, combatRect.left + SS(18), combatRect.top + SS(146), explosiveText, lstrlen(explosiveText));
         }
 
+        if (rogueStats.doubleGrowthLevel > 0)
+        {
+            TCHAR growthText[96];
+            _stprintf_s(growthText, _T("\u53cc\u500d\u6210\u957f  +%d%%"), rogueStats.doubleGrowthLevel * 15);
+            TextOut(hdc, combatRect.left + SS(18), combatRect.top + SS(178), growthText, lstrlen(growthText));
+        }
+
         RECT upgradeListRect =
         {
             panelRect.left + SS(20),
@@ -758,6 +765,10 @@ void TDrawScreen(HDC hdc, HWND hWnd)
         {
             _stprintf_s(upgradeSummary + lstrlen(upgradeSummary), 512 - lstrlen(upgradeSummary), _T("\u7a33\u5b9a\u7ed3\u6784 Lv.%d\r\n"), rogueStats.stableStructureLevel);
         }
+        if (rogueStats.doubleGrowthLevel > 0)
+        {
+            _stprintf_s(upgradeSummary + lstrlen(upgradeSummary), 512 - lstrlen(upgradeSummary), _T("\u53cc\u500d\u6210\u957f Lv.%d\r\n"), rogueStats.doubleGrowthLevel);
+        }
         if (lstrlen(upgradeSummary) == 0)
         {
             _stprintf_s(upgradeSummary, _T("\u6682\u672a\u9009\u62e9\u4efb\u4f55\u5f3a\u5316\u3002\r\n\u5347\u7ea7\u540e\u4f1a\u5728\u8fd9\u91cc\u7d2f\u79ef\u663e\u793a\u3002"));