diff --git a/src/saveload/game_sl.cpp b/src/saveload/game_sl.cpp
new file mode 100644
--- /dev/null
+++ b/src/saveload/game_sl.cpp
@@ -0,0 +1,116 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file game_sl.cpp Handles the saveload part of the GameScripts */
+
+#include "../stdafx.h"
+#include "../company_base.h"
+#include "../debug.h"
+#include "saveload.h"
+#include "../string_func.h"
+
+#include "../game/game.hpp"
+#include "../game/game_config.hpp"
+#include "../network/network.h"
+#include "../game/game_instance.hpp"
+
+static char _game_saveload_name[64];
+static int  _game_saveload_version;
+static char _game_saveload_settings[1024];
+static bool _game_saveload_is_random;
+
+static const SaveLoad _game_script[] = {
+	    SLEG_STR(_game_saveload_name,        SLE_STRB),
+	    SLEG_STR(_game_saveload_settings,    SLE_STRB),
+	    SLEG_VAR(_game_saveload_version,   SLE_UINT32),
+	    SLEG_VAR(_game_saveload_is_random,   SLE_BOOL),
+	     SLE_END()
+};
+
+static void SaveReal_GSDT(int *index_ptr)
+{
+	GameConfig *config = GameConfig::GetConfig();
+
+	if (config->HasScript()) {
+		ttd_strlcpy(_game_saveload_name, config->GetName(), lengthof(_game_saveload_name));
+		_game_saveload_version = config->GetVersion();
+	} else {
+		/* No GameScript is configured for this so store an empty string as name. */
+		_game_saveload_name[0] = '\0';
+		_game_saveload_version = -1;
+	}
+
+	_game_saveload_is_random = config->IsRandom();
+	_game_saveload_settings[0] = '\0';
+	config->SettingsToString(_game_saveload_settings, lengthof(_game_saveload_settings));
+
+	SlObject(NULL, _game_script);
+	Game::Save();
+}
+
+static void Load_GSDT()
+{
+	/* Free all current data */
+	GameConfig::GetConfig(GameConfig::SSS_FORCE_GAME)->Change(NULL);
+
+	if ((CompanyID)SlIterateArray() == (CompanyID)-1) return;
+
+	_game_saveload_version = -1;
+	SlObject(NULL, _game_script);
+
+	if (_networking && !_network_server) {
+		GameInstance::LoadEmpty();
+		if ((CompanyID)SlIterateArray() != (CompanyID)-1) SlErrorCorrupt("Too many GameScript configs");
+		return;
+	}
+
+	GameConfig *config = GameConfig::GetConfig(GameConfig::SSS_FORCE_GAME);
+	if (StrEmpty(_game_saveload_name)) {
+	} else {
+		config->Change(_game_saveload_name, _game_saveload_version, false, _game_saveload_is_random);
+		if (!config->HasScript()) {
+			/* No version of the GameScript available that can load the data. Try to load the
+				* latest version of the GameScript instead. */
+			config->Change(_game_saveload_name, -1, false, _game_saveload_is_random);
+			if (!config->HasScript()) {
+				if (strcmp(_game_saveload_name, "%_dummy") != 0) {
+					DEBUG(script, 0, "The savegame has an GameScript by the name '%s', version %d which is no longer available.", _game_saveload_name, _game_saveload_version);
+					DEBUG(script, 0, "This game wil continue to run without GameScript.");
+				} else {
+					DEBUG(script, 0, "The savegame had no GameScript available at the time of saving.");
+					DEBUG(script, 0, "This game wil continue to run without GameScript.");
+				}
+			} else {
+				DEBUG(script, 0, "The savegame has an GameScript by the name '%s', version %d which is no longer available.", _game_saveload_name, _game_saveload_version);
+				DEBUG(script, 0, "The latest version of that GameScript has been loaded instead, but it'll not get the savegame data as it's incompatible.");
+			}
+			/* Make sure the GameScript doesn't get the saveload data, as he was not the
+				*  writer of the saveload data in the first place */
+			_game_saveload_version = -1;
+		}
+	}
+
+	config->StringToSettings(_game_saveload_settings);
+
+	/* Start the GameScript directly if it was active in the savegame */
+	Game::StartNew();
+	Game::Load(_game_saveload_version);
+
+	if ((CompanyID)SlIterateArray() != (CompanyID)-1) SlErrorCorrupt("Too many GameScript configs");
+}
+
+static void Save_GSDT()
+{
+	SlSetArrayIndex(0);
+	SlAutolength((AutolengthProc *)SaveReal_GSDT, NULL);
+}
+
+extern const ChunkHandler _game_chunk_handlers[] = {
+	{ 'GSDT', Save_GSDT, Load_GSDT, NULL, NULL, CH_ARRAY | CH_LAST},
+};