diff --git a/apps/openmw-mp/Player.hpp b/apps/openmw-mp/Player.hpp
index edbc223e5..2b06ef42e 100644
--- a/apps/openmw-mp/Player.hpp
+++ b/apps/openmw-mp/Player.hpp
@@ -78,6 +78,7 @@ public:
     mwmp::TopicChanges topicChangesBuffer;
     mwmp::KillChanges killChangesBuffer;
     mwmp::BookChanges bookChangesBuffer;
+    mwmp::MapChanges mapChangesBuffer;
 
 private:
     CellController::TContainer cells;
diff --git a/apps/openmw-mp/Script/Functions/Cells.cpp b/apps/openmw-mp/Script/Functions/Cells.cpp
index 88b73f1de..db2685708 100644
--- a/apps/openmw-mp/Script/Functions/Cells.cpp
+++ b/apps/openmw-mp/Script/Functions/Cells.cpp
@@ -113,6 +113,15 @@ bool CellFunctions::IsChangingRegion(unsigned short pid) noexcept
     return player->isChangingRegion;
 }
 
+void CellFunctions::AddCellExplored(unsigned short pid, const char* cellDescription) noexcept
+{
+    Player *player;
+    GET_PLAYER(pid, player, );
+
+    ESM::Cell cellExplored = Utils::getCellFromDescription(cellDescription);
+    player->mapChangesBuffer.cellsExplored.push_back(cellExplored);
+}
+
 void CellFunctions::SendCell(unsigned short pid) noexcept
 {
     Player *player;
@@ -121,3 +130,15 @@ void CellFunctions::SendCell(unsigned short pid) noexcept
     mwmp::Networking::get().getPlayerPacketController()->GetPacket(ID_PLAYER_CELL_CHANGE)->setPlayer(player);
     mwmp::Networking::get().getPlayerPacketController()->GetPacket(ID_PLAYER_CELL_CHANGE)->Send(false);
 }
+
+void CellFunctions::SendMapChanges(unsigned short pid) noexcept
+{
+    Player *player;
+    GET_PLAYER(pid, player, );
+
+    std::swap(player->mapChanges, player->mapChangesBuffer);
+    mwmp::Networking::get().getPlayerPacketController()->GetPacket(ID_PLAYER_MAP)->setPlayer(player);
+    mwmp::Networking::get().getPlayerPacketController()->GetPacket(ID_PLAYER_MAP)->Send(false);
+    player->mapChanges = std::move(player->mapChangesBuffer);
+    player->mapChangesBuffer.cellsExplored.clear();
+}
diff --git a/apps/openmw-mp/Script/Functions/Cells.hpp b/apps/openmw-mp/Script/Functions/Cells.hpp
index db878283a..e918dd262 100644
--- a/apps/openmw-mp/Script/Functions/Cells.hpp
+++ b/apps/openmw-mp/Script/Functions/Cells.hpp
@@ -19,7 +19,10 @@
     {"GetRegion",               CellFunctions::GetRegion},\
     {"IsChangingRegion",        CellFunctions::IsChangingRegion},\
     \
-    {"SendCell",                CellFunctions::SendCell}
+    {"AddCellExplored",         CellFunctions::AddCellExplored},\
+    \
+    {"SendCell",                CellFunctions::SendCell},\
+    {"SendMapChanges",          CellFunctions::SendMapChanges}
 
 
 class CellFunctions
@@ -40,7 +43,10 @@ public:
     static const char *GetRegion(unsigned short pid) noexcept;
     static bool IsChangingRegion(unsigned short pid) noexcept;
 
+    static void AddCellExplored(unsigned short pid, const char* cellDescription) noexcept;
+
     static void SendCell(unsigned short pid) noexcept;
+    static void SendMapChanges(unsigned short pid) noexcept;
 };
 
 #endif //OPENMW_CELLAPI_HPP
diff --git a/apps/openmw-mp/processors/player/ProcessorPlayerMap.hpp b/apps/openmw-mp/processors/player/ProcessorPlayerMap.hpp
index e22e21c79..e1620df9e 100644
--- a/apps/openmw-mp/processors/player/ProcessorPlayerMap.hpp
+++ b/apps/openmw-mp/processors/player/ProcessorPlayerMap.hpp
@@ -17,9 +17,9 @@ namespace mwmp
         {
             DEBUG_PRINTF(strPacketID.c_str());
 
-            packet.Send(true);
-
-            Script::Call<Script::CallbackIdentity("OnPlayerMap")>(player.getId());
+            // Not currently implemented
+            //
+            // To be dealt with later to save explored areas on local maps
         }
     };
 }
diff --git a/apps/openmw/mwbase/windowmanager.hpp b/apps/openmw/mwbase/windowmanager.hpp
index f103ce191..882c54f4f 100644
--- a/apps/openmw/mwbase/windowmanager.hpp
+++ b/apps/openmw/mwbase/windowmanager.hpp
@@ -179,6 +179,16 @@ namespace MWBase
             virtual void changeCell(const MWWorld::CellStore* cell) = 0;
             ///< change the active cell
 
+            /*
+                Start of tes3mp addition
+
+                Allow setting a cell as explored from elsewhere in the code
+            */
+            virtual void setCellExplored(const MWWorld::CellStore* cell) = 0;
+            /*
+                End of tes3mp addition
+            */
+
             virtual void setFocusObject(const MWWorld::Ptr& focus) = 0;
             virtual void setFocusObjectScreenCoords(float min_x, float min_y, float max_x, float max_y) = 0;
 
diff --git a/apps/openmw/mwgui/windowmanagerimp.cpp b/apps/openmw/mwgui/windowmanagerimp.cpp
index 786c5a37b..eb6a8bed2 100644
--- a/apps/openmw/mwgui/windowmanagerimp.cpp
+++ b/apps/openmw/mwgui/windowmanagerimp.cpp
@@ -1058,6 +1058,19 @@ namespace MWGui
         }
     }
 
+    /*
+        Start of tes3mp addition
+
+        Allow setting a cell as explored from elsewhere in the code
+    */
+    void WindowManager::setCellExplored(const MWWorld::CellStore* cell)
+    {
+        mMap->cellExplored(cell->getCell()->getGridX(), cell->getCell()->getGridY());
+    }
+    /*
+        End of tes3mp addition
+    */
+
     void WindowManager::setActiveMap(int x, int y, bool interior)
     {
         mMap->setActiveCell(x,y, interior);
diff --git a/apps/openmw/mwgui/windowmanagerimp.hpp b/apps/openmw/mwgui/windowmanagerimp.hpp
index ea7b4c14c..fa374a078 100644
--- a/apps/openmw/mwgui/windowmanagerimp.hpp
+++ b/apps/openmw/mwgui/windowmanagerimp.hpp
@@ -214,6 +214,16 @@ namespace MWGui
 
     virtual void changeCell(const MWWorld::CellStore* cell); ///< change the active cell
 
+    /*
+        Start of tes3mp addition
+
+        Allow setting a cell as explored from elsewhere in the code
+    */
+    virtual void setCellExplored(const MWWorld::CellStore* cell);
+    /*
+        End of tes3mp addition
+    */
+
     virtual void setFocusObject(const MWWorld::Ptr& focus);
     virtual void setFocusObjectScreenCoords(float min_x, float min_y, float max_x, float max_y);
 
diff --git a/apps/openmw/mwmp/LocalPlayer.cpp b/apps/openmw/mwmp/LocalPlayer.cpp
index 9d2ea017c..42e62f7b7 100644
--- a/apps/openmw/mwmp/LocalPlayer.cpp
+++ b/apps/openmw/mwmp/LocalPlayer.cpp
@@ -991,6 +991,21 @@ void LocalPlayer::setBooks()
         ptrNpcStats.flagAsUsed(book.bookId);
 }
 
+void LocalPlayer::setMapExplored()
+{
+    MWWorld::Ptr player = getPlayerPtr();
+    MWMechanics::NpcStats &ptrNpcStats = player.getClass().getNpcStats(player);
+
+    for (const auto &cellExplored : mapChanges.cellsExplored)
+    {
+        MWWorld::CellStore *ptrCellStore = Main::get().getCellController()->getCellStore(cellExplored);
+
+        if (!ptrCellStore) continue;
+
+        MWBase::Environment::get().getWindowManager()->setCellExplored(ptrCellStore);
+    }
+}
+
 void LocalPlayer::sendClass()
 {
     MWBase::World *world = MWBase::Environment::get().getWorld();
diff --git a/apps/openmw/mwmp/LocalPlayer.hpp b/apps/openmw/mwmp/LocalPlayer.hpp
index f441f3dba..425b825c6 100644
--- a/apps/openmw/mwmp/LocalPlayer.hpp
+++ b/apps/openmw/mwmp/LocalPlayer.hpp
@@ -61,6 +61,7 @@ namespace mwmp
         void setFactions();
         void setKills();
         void setBooks();
+        void setMapExplored();
 
         void sendClass();
         void sendInventory();
diff --git a/apps/openmw/mwmp/processors/player/ProcessorPlayerMap.hpp b/apps/openmw/mwmp/processors/player/ProcessorPlayerMap.hpp
index b900c4f35..803c7e10d 100644
--- a/apps/openmw/mwmp/processors/player/ProcessorPlayerMap.hpp
+++ b/apps/openmw/mwmp/processors/player/ProcessorPlayerMap.hpp
@@ -15,7 +15,10 @@ namespace mwmp
 
         virtual void Do(PlayerPacket &packet, BasePlayer *player)
         {
-            // Placeholder to be filled in later
+            if (isLocal())
+            {
+                static_cast<LocalPlayer*>(player)->setMapExplored();
+            }
         }
     };
 }
diff --git a/components/openmw-mp/Base/BasePlayer.hpp b/components/openmw-mp/Base/BasePlayer.hpp
index ef4d20fd6..4da795c3f 100644
--- a/components/openmw-mp/Base/BasePlayer.hpp
+++ b/components/openmw-mp/Base/BasePlayer.hpp
@@ -107,6 +107,12 @@ namespace mwmp
         unsigned int count;
     };
 
+    struct MapChanges
+    {
+        std::vector<ESM::Cell> cellsExplored;
+        unsigned int count;
+    };
+
     struct InventoryChanges
     {
         std::vector<Item> items;
@@ -201,6 +207,7 @@ namespace mwmp
         TopicChanges topicChanges;
         KillChanges killChanges;
         BookChanges bookChanges;
+        MapChanges mapChanges;
         CellStateChanges cellStateChanges;
 
         ESM::ActiveSpells activeSpells;
diff --git a/components/openmw-mp/Packets/Player/PacketPlayerMap.cpp b/components/openmw-mp/Packets/Player/PacketPlayerMap.cpp
index 528b0ec5d..9027f55c9 100644
--- a/components/openmw-mp/Packets/Player/PacketPlayerMap.cpp
+++ b/components/openmw-mp/Packets/Player/PacketPlayerMap.cpp
@@ -13,5 +13,24 @@ void PacketPlayerMap::Packet(RakNet::BitStream *bs, bool send)
 {
     PlayerPacket::Packet(bs, send);
 
-    // Placeholder to be filled in later
+    if (send)
+        player->mapChanges.count = (unsigned int)(player->mapChanges.cellsExplored.size());
+    else
+        player->mapChanges.cellsExplored.clear();
+
+    RW(player->mapChanges.count, send);
+
+    for (unsigned int i = 0; i < player->mapChanges.count; i++)
+    {
+        ESM::Cell cellExplored;
+
+        if (send)
+            cellExplored = player->mapChanges.cellsExplored.at(i);
+
+        RW(cellExplored.mData, send, 1);
+        RW(cellExplored.mName, send, 1);
+
+        if (!send)
+            player->mapChanges.cellsExplored.push_back(cellExplored);
+    }
 }