diff --git a/game/ht.h b/game/ht.h
index 8d29502..19b9591 100644
--- a/game/ht.h
+++ b/game/ht.h
@@ -471,6 +471,7 @@ public:
             dword cPlayers, dword cGames) = 0;
     virtual void OnRemoveRoom(dword roomid) = 0;
     virtual void OnUpdateRoom(dword roomid, dword cPlayers, dword cGames) = 0;
+    virtual void OnReceiveChat(const char *player, const char *chat) = 0;
 };
 
 class ITransportCallback {
diff --git a/game/lobbyform.cpp b/game/lobbyform.cpp
index 709da41..0cd180b 100644
--- a/game/lobbyform.cpp
+++ b/game/lobbyform.cpp
@@ -380,4 +380,9 @@ bool LobbyForm::OnFilterEvent(Event *pevt) {
     return false;
 }
 
+void LobbyForm::OnReceiveChat(const char *player, const char *chat) {
+    const char *s = base::Format::ToString("%s: %s", player, chat);
+    HtMessageBox(kfMbWhiteBorder | kfMbKeepTimersEnabled, player, s);
+}
+
 } // namespace wi
diff --git a/game/lobbyform.h b/game/lobbyform.h
index 2d45690..9d7ebdb 100644
--- a/game/lobbyform.h
+++ b/game/lobbyform.h
@@ -69,6 +69,7 @@ private:
             dword cPlayers, dword cGames);
     virtual void OnRemoveRoom(dword roomid);
     virtual void OnUpdateRoom(dword roomid, dword cPlayers, dword cGames);
+    virtual void OnReceiveChat(const char *player, const char *chat);
 
     // ITransportCallback
     virtual void OnStatusUpdate(char *pszStatus);
diff --git a/game/xtransport.cpp b/game/xtransport.cpp
index 804693a..0fa543f 100644
--- a/game/xtransport.cpp
+++ b/game/xtransport.cpp
@@ -522,6 +522,12 @@ void XTransport::OnLobbyLurkerCount(dword count) {
     }
 }
 
+void XTransport::OnLobbyReceiveChat(const char *player, const char *chat) {
+    if (m_plcb != NULL) {
+        m_plcb->OnReceiveChat(player, chat);
+    }
+}
+
 dword XTransport::JoinRoom(dword roomid, const char *password,
         IRoomCallback *prcb) {
     // Synchronously join a room. It may fail.
diff --git a/game/xtransport.h b/game/xtransport.h
index c6b378f..3323352 100644
--- a/game/xtransport.h
+++ b/game/xtransport.h
@@ -99,6 +99,7 @@ private:
             dword cPlayers, dword cGames);
     virtual void OnLobbyRemoveRoom(dword idRoom);
     virtual void OnLobbyUpdateRoom(dword idRoom, dword cPlayers, dword cGames);
+    virtual void OnLobbyReceiveChat(const char *player, const char *chat);
     virtual void OnRoomJoinResult(dword result);
     virtual void OnRoomAddPlayer(const char *player);
     virtual void OnRoomRemovePlayer(dword hint, const char *player);
diff --git a/mpshared/constants.h b/mpshared/constants.h
index 6d23e1b..bc22ffd 100644
--- a/mpshared/constants.h
+++ b/mpshared/constants.h
@@ -30,6 +30,7 @@ const byte XMSG_LOBBYREMOVEROOM = 0xa8;
 const byte XMSG_LOBBYUPDATEROOM = 0xa9;
 const byte XMSG_LOBBYLEAVE = 0xaa;
 const byte XMSG_LOBBYLEAVERESULT = 0xab;
+const byte XMSG_LOBBYRECEIVECHAT = 0xac;
 const byte XMSG_ROOMJOIN = 0xb0;
 const byte XMSG_ROOMJOINRESULT = 0xb1;
 const byte XMSG_ROOMADDPLAYER = 0xb2;
@@ -81,6 +82,7 @@ STARTLABEL(XMsgLabels)
     LABEL(XMSG_LOBBYADDROOM)
     LABEL(XMSG_LOBBYREMOVEROOM)
     LABEL(XMSG_LOBBYUPDATEROOM)
+    LABEL(XMSG_LOBBYRECEIVECHAT)
     LABEL(XMSG_LOBBYLEAVE)
     LABEL(XMSG_LOBBYLEAVERESULT)
     LABEL(XMSG_ROOMJOIN)
diff --git a/mpshared/messages.h b/mpshared/messages.h
index 6991f2c..215d43e 100644
--- a/mpshared/messages.h
+++ b/mpshared/messages.h
@@ -163,6 +163,7 @@ typedef XMsg1<XMSG_LOBBYREMOVEROOM> XMsgLobbyRemoveRoom;
 typedef XMsg3<XMSG_LOBBYUPDATEROOM> XMsgLobbyUpdateRoom;
 typedef XMsg0<XMSG_LOBBYLEAVE> XMsgLobbyLeave;
 typedef XMsg1<XMSG_LOBBYLEAVERESULT> XMsgLobbyLeaveResult;
+typedef XMsgS2<XMSG_LOBBYRECEIVECHAT, kcbPlayerName, kcbChatMax> XMsgLobbyReceiveChat;
 typedef XMsgDS<XMSG_ROOMJOIN, kcbPassword> XMsgRoomJoin;
 typedef XMsg1<XMSG_ROOMJOINRESULT> XMsgRoomJoinResult;
 typedef XMsgS1<XMSG_ROOMADDPLAYER, kcbPlayerName> XMsgRoomAddPlayer;
diff --git a/mpshared/xpump.cpp b/mpshared/xpump.cpp
index b705a14..1ae547e 100644
--- a/mpshared/xpump.cpp
+++ b/mpshared/xpump.cpp
@@ -242,6 +242,9 @@ XMsg *XPump::XMsgFromBuffer(base::ByteBuffer& bb, dword cb) {
     case XMSG_LOBBYLEAVERESULT:
         return XMsgLobbyLeaveResult::FromBuffer(bb, cb);
 
+    case XMSG_LOBBYRECEIVECHAT:
+        return XMsgLobbyReceiveChat::FromBuffer(bb, cb);
+
     case XMSG_ROOMJOIN:
         return XMsgRoomJoin::FromBuffer(bb, cb);
 
@@ -498,6 +501,14 @@ void XPump::DispatchXMsg(XMsg *pmsg) {
         }
         break;
 
+    case XMSG_LOBBYRECEIVECHAT:
+        {
+            XMsgLobbyReceiveChat *pmsgT = (XMsgLobbyReceiveChat *)pmsg;
+            // player, chat
+            notify_->OnLobbyReceiveChat(pmsgT->s0_, pmsgT->s1_);
+        }
+        break;
+
     case XMSG_ROOMJOIN:
         {
             XMsgRoomJoin *pmsgT = (XMsgRoomJoin *)pmsg;
diff --git a/mpshared/xpump.h b/mpshared/xpump.h
index 7aee4be..2c4dc50 100644
--- a/mpshared/xpump.h
+++ b/mpshared/xpump.h
@@ -41,6 +41,8 @@ public:
             { Assert(); }
     virtual void OnLobbyLeave() { Assert(); }
     virtual void OnLobbyLeaveResult(dword result) { Assert(); }
+    virtual void OnLobbyReceiveChat(const char *player, const char *chat)
+            { Assert(); }
     virtual void OnRoomJoin(dword roomid, const char *password) { Assert(); }
     virtual void OnRoomJoinResult(dword result) { Assert(); }
     virtual void OnRoomAddPlayer(const char *player) { Assert(); }