diff --git a/server/gameserver/human.cc b/server/gameserver/human.cc
index 94a6e05..ffcbe2b 100644
--- a/server/gameserver/human.cc
+++ b/server/gameserver/human.cc
@@ -3507,3 +3507,81 @@ void Human::UpdateViewObjects()
         }
     }
 }
+
+void Human::GMAddItem(int item_id, int item_num)
+{
+    MetaData::Equip* item_meta = MetaMgr::Instance()->GetEquip(item_id);
+    if (!item_meta) {
+        return;
+    }
+    if (item_meta->i->_inventory_slot() >= 0 &&
+        item_meta->i->_inventory_slot() < IS_END) {
+        if (GetInventory(item_meta->i->_inventory_slot()) >=
+            GetVolume(item_meta->i->_inventory_slot())
+            ) {
+            /*
+              cs::SMPickup notifymsg;
+              notifymsg.set_error_code(1);
+              SendNotifyMsg(notifymsg);
+            */
+            return;
+        }
+        int add_num = GetVolume(item_meta->i->_inventory_slot()) -
+            GetInventory(item_meta->i->_inventory_slot());
+        add_num = std::min(item_num, add_num);
+
+        AddInventory(item_meta->i->_inventory_slot(), add_num);
+        switch (item_meta->i->_inventory_slot()) {
+        case IS_FRAG:
+        case IS_SMOKE:
+            {
+                Weapon* weapon = &weapons[SPEC1_SLOT_BEGIN +
+                                          (item_meta->i->_inventory_slot() - SPEC1_IS_BEGIN)
+                                          ];
+                weapon->weapon_id = item_id;
+                weapon->weapon_lv = 1;
+                weapon->ammo += item_num;
+                weapon->meta = item_meta;
+                weapon->Recalc();
+                DecInventory(item_meta->i->_inventory_slot(), add_num);
+            }
+            break;
+        case IS_1XSCOPE:
+        case IS_2XSCOPE:
+        case IS_4XSCOPE:
+        case IS_8XSCOPE:
+        case IS_15XSCOPE:
+            {
+                if (item_meta->i->_inventory_slot() - IS_1XSCOPE > curr_scope_idx) {
+                    curr_scope_idx = item_meta->i->_inventory_slot() - IS_1XSCOPE;
+                }
+            }
+            break;
+        case IS_POSION_GAS_BOMB:
+        case IS_MOLOTOR_COCKTAIL:
+        case IS_TRAP:
+        case IS_MINE:
+            {
+                Weapon* weapon = &weapons[SPEC2_SLOT_BEGIN +
+                                          (item_meta->i->_inventory_slot() - SPEC2_IS_BEGIN)
+                                          ];
+                weapon->weapon_id = item_id;
+                weapon->weapon_lv = 1;
+                weapon->ammo += item_num;
+                weapon->meta = item_meta;
+                weapon->Recalc();
+                DecInventory(item_meta->i->_inventory_slot(), add_num);
+            }
+            break;
+        default:
+            {
+#if 0
+                abort();
+#endif
+            }
+            break;
+        }
+    }
+    need_sync_active_player = true;
+    SyncAroundPlayers(__FILE__, __LINE__, __func__);
+}
diff --git a/server/gameserver/human.h b/server/gameserver/human.h
index a503262..f548941 100644
--- a/server/gameserver/human.h
+++ b/server/gameserver/human.h
@@ -245,6 +245,7 @@ class Human : public Creature
     void DeadDrop();
     virtual std::string GetName() override { return name;};
     void UpdateViewObjects();
+    void GMAddItem(int item_id, int item_num);
 
 protected:
     void _InternalUpdateMove(float speed);
diff --git a/server/gameserver/player.cc b/server/gameserver/player.cc
index 0a71baf..96d4948 100644
--- a/server/gameserver/player.cc
+++ b/server/gameserver/player.cc
@@ -1102,6 +1102,10 @@ void Player::_CMExecCommand(f8::MsgHdr& hdr, const cs::CMExecCommand& msg)
     std::string cmd = cmds[0];
     if (cmd == "gps") {
         SendDebugMsg(a8::Format("%d %d", {GetPos().x, GetPos().y}));
+    }else if (cmd == "additem" && cmds.size() >= 2) {
+        int item_id = a8::XValue(cmds[1]);
+        int item_num = a8::XValue(cmds[2]);
+        GMAddItem(item_id, item_num);
     }
 }