diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index e176455..e8a426e 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -89,6 +89,9 @@ void Player::MakeUpdateMsg()
 {
     update_msg->Clear();
     {
+        for (auto& obj_uniid : room->frame_data.deleted_objects) {
+            update_msg->add_del_objids(obj_uniid);
+        }
         for (auto& itr : new_players) {
             itr->FillMFObjectFull(update_msg->add_full_objects());
             if (itr->frame_data.bullets.size() > 0) {
diff --git a/server/gameserver/room.cc b/server/gameserver/room.cc
index 99b6641..f0fea54 100644
--- a/server/gameserver/room.cc
+++ b/server/gameserver/room.cc
@@ -16,10 +16,12 @@ void Room::Update(int delta_time)
 {
     elapsed_time_ += delta_time;
     while (elapsed_time_ >= 50) {
+        ResetFrameData();
         for (auto& pair : moveable_hash_) {
             pair.second->Update(50);
             pair.second->updated_times++;
         }
+        ClearDeletedObjects();
         elapsed_time_ -= 50;
     }
 }
@@ -54,7 +56,7 @@ Entity* Room::GetEntityByUniId(unsigned short uniid)
 
 int Room::AliveCount()
 {
-    return accountid_hash_.size();
+    return alive_count_;
 }
 
 void Room::AddPlayer(Player* hum)
@@ -65,6 +67,7 @@ void Room::AddPlayer(Player* hum)
     uniid_hash_[hum->entity_uniid] = hum;
     moveable_hash_[hum->entity_uniid] = hum;
     accountid_hash_[hum->account_id] = hum;
+    ++alive_count_;
 }
 
 unsigned short Room::AllocUniid()
@@ -91,6 +94,7 @@ void Room::ShuaAndroid()
         hum->Initialize();
         uniid_hash_[hum->entity_uniid] = hum;
         moveable_hash_[hum->entity_uniid] = hum;
+        ++alive_count_;
     }
 }
 
@@ -182,3 +186,24 @@ void Room::FillSMJoinedNotify(Player* self_hum, cs::SMJoinedNotify& msg)
         }
     }
 }
+
+void Room::ResetFrameData()
+{
+    frame_data.deleted_objects.clear();
+    frame_data.explosions.Clear();
+    frame_data.emotes.Clear();
+}
+
+void Room::ClearDeletedObjects()
+{
+    for (auto& obj_uniid : frame_data.deleted_objects) {
+        Entity* entity = GetEntityByUniId(obj_uniid);
+        if (entity) {
+            if (entity->entity_type != ET_Player) {
+                uniid_hash_.erase(entity->entity_uniid);
+                moveable_hash_.erase(entity->entity_uniid);
+            }
+            delete entity;
+        }
+    }
+}
diff --git a/server/gameserver/room.h b/server/gameserver/room.h
index d61e37e..8d91570 100644
--- a/server/gameserver/room.h
+++ b/server/gameserver/room.h
@@ -48,11 +48,16 @@ public:
     void CollisionDetection(Entity* sender, int detection_flags, std::vector<Entity*> objects);
     void AddDeletedObject(unsigned short obj_uniid);
     void FillSMJoinedNotify(Player* self_hum, cs::SMJoinedNotify& msg);
+    void ResetFrameData();
 
- private:
+private:
+    void ClearDeletedObjects();
+
+private:
     unsigned short current_uniid = 0;
     RoomState_e state_ = RS_Inactive;
     int elapsed_time_ = 0;
+    int alive_count_ = 0;
 
     std::map<std::string, Player*> accountid_hash_;
     std::map<unsigned short, Entity*> uniid_hash_;