diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 28763946..f5352543 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -1186,7 +1186,11 @@ void Room::UpdateGas()
     if (gas_data_.gas_mode != GasInactive && gas_data_.gas_mode != GasJump) {
         if (gas_data_.gas_mode != GasInactive) {
             if (IsPveRoom()) {
-
+                if (!IsGameOver() && pve_data.refreshed_mon > 0 && pve_data.killed_num >= pve_data.refreshed_mon) {
+                    game_over_ = true;
+                    game_over_frameno_ = GetFrameNo();
+                    OnGameOver();
+                }
             } else {
                 if (!IsGameOver() && alive_count_ <= MAX_TEAM_NUM && GetAliveTeamNum() <= 1) {
                     game_over_ = true;