Index: source/network/NetClientTurnManager.cpp
===================================================================
--- source/network/NetClientTurnManager.cpp
+++ source/network/NetClientTurnManager.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2017 Wildfire Games.
+/* Copyright (C) 2018 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -123,6 +123,10 @@
 	m_Simulation2.DumpDebugState(file);
 	file.close();
 
+	std::ofstream binfile (OsString(oosdumpPath.ChangeExtension(L".dat")).c_str(), std::ofstream::out | std::ofstream::trunc | std::ofstream::binary);
+	m_Simulation2.SerializeState(binfile);
+	binfile.close();
+
 	std::stringstream playerNamesString;
 	std::vector<CStr> playerNamesStrings;
 	playerNamesStrings.reserve(playerNames.size());