Index: build/premake/premake5.lua
===================================================================
--- build/premake/premake5.lua
+++ build/premake/premake5.lua
@@ -819,7 +819,9 @@
 
 	source_dirs = {
 		"tools/atlas/GameInterface",
-		"tools/atlas/GameInterface/Handlers"
+		"tools/atlas/GameInterface/Handlers",
+		"tools/atlas/EditorInterface",
+		"tools/atlas/EditorInterface/scripting"
 	}
 	extern_libs = {
 		"boost",
Index: source/gui/Scripting/ScriptFunctions.cpp
===================================================================
--- source/gui/Scripting/ScriptFunctions.cpp
+++ source/gui/Scripting/ScriptFunctions.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2022 Wildfire Games.
+/* Copyright (C) 2023 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -41,6 +41,7 @@
 #include "scriptinterface/ScriptInterface.h"
 #include "simulation2/scripting/JSInterface_Simulation.h"
 #include "soundmanager/scripting/JSInterface_Sound.h"
+#include "tools/atlas/EditorInterface/scripting/JSInterface_Editor.h"
 
 /*
  * This file defines a set of functions that are available to GUI scripts, to allow
@@ -73,4 +74,5 @@
 	JSI_UserReport::RegisterScriptFunctions(rq);
 	JSI_VFS::RegisterScriptFunctions_ReadWriteAnywhere(rq);
 	JSI_VisualReplay::RegisterScriptFunctions(rq);
+	JSI_Editor::RegisterScriptFunctions(rq);
 }
Index: source/ps/Game.h
===================================================================
--- source/ps/Game.h
+++ source/ps/Game.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2021 Wildfire Games.
+/* Copyright (C) 2023 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -151,6 +151,16 @@
 	{	return m_IsVisualReplay; }
 
 	/**
+	 * Get m_IsEditorGame.
+	 *
+	 * @return bool the value of m_IsEditorGame.
+	 **/
+	inline bool IsEditorGame() const
+	{
+		return m_IsEditorGame;
+	}
+
+	/**
 	 * Get the pointer to the game world object.
 	 *
 	 * @return CWorld * the value of m_World.
@@ -220,6 +230,8 @@
 	bool m_IsVisualReplay;
 	std::istream* m_ReplayStream;
 	u32 m_FinalReplayTurn;
+
+	bool m_IsEditorGame; // true if the game is for use the editor
 };
 
 extern CGame *g_Game;
Index: source/ps/Game.cpp
===================================================================
--- source/ps/Game.cpp
+++ source/ps/Game.cpp
@@ -1,4 +1,4 @@
-/* Copyright (C) 2022 Wildfire Games.
+/* Copyright (C) 2023 Wildfire Games.
  * This file is part of 0 A.D.
  *
  * 0 A.D. is free software: you can redistribute it and/or modify
@@ -78,6 +78,7 @@
 	m_ViewedPlayerID(-1),
 	m_IsSavedGame(false),
 	m_IsVisualReplay(false),
+	m_IsEditorGame(false),
 	m_ReplayStream(NULL)
 {
 	// TODO: should use CDummyReplayLogger unless activated by cmd-line arg, perhaps?
@@ -229,6 +230,9 @@
 			LOGERROR("GameSpeed could not be parsed.");
 	}
 
+	if (Script::HasProperty(rq, attribs, "editorType"))
+		m_IsEditorGame = true;
+
 	LDR_BeginRegistering();
 
 	RegMemFun(m_Simulation2, &CSimulation2::ProgressiveLoad, L"Simulation init", 1000);
Index: source/tools/atlas/EditorInterface/scripting/JSInterface_Editor.h
===================================================================
--- source/tools/atlas/EditorInterface/scripting/JSInterface_Editor.h
+++ source/tools/atlas/EditorInterface/scripting/JSInterface_Editor.h
@@ -0,0 +1,29 @@
+/* Copyright (C) 2023 Wildfire Games.
+ * This file is part of 0 A.D.
+ *
+ * 0 A.D. 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 0 A.D. 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 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef INCLUDED_JSINTERFACE_EDITOR
+#define INCLUDED_JSINTERFACE_EDITOR
+
+class ScriptRequest;
+
+namespace JSI_Editor
+{
+	void RegisterScriptFunctions(const ScriptRequest& rq);
+}
+
+#endif // INCLUDED_JSINTERFACE_EDITOR
+
Index: source/tools/atlas/EditorInterface/scripting/JSInterface_Editor.cpp
===================================================================
--- source/tools/atlas/EditorInterface/scripting/JSInterface_Editor.cpp
+++ source/tools/atlas/EditorInterface/scripting/JSInterface_Editor.cpp
@@ -0,0 +1,142 @@
+/* Copyright (C) 2023 Wildfire Games.
+ * This file is part of 0 A.D.
+ *
+ * 0 A.D. 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, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 0 A.D. 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 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "precompiled.h"
+
+#include "JSInterface_Editor.h"
+#include "graphics/GameView.h"
+#include "graphics/MapWriter.h"
+#include "ps/Game.h"
+#include "ps/World.h"
+#include "renderer/Renderer.h"
+#include "renderer/SceneRenderer.h"
+#include "renderer/WaterManager.h"
+#include "scriptinterface/FunctionWrapper.h"
+#include "scriptinterface/StructuredClone.h"
+#include "simulation2/Simulation2.h"
+#include "simulation2/components/ICmpAIManager.h"
+#include "simulation2/components/ICmpRangeManager.h"
+#include "simulation2/components/ICmpTemplateManager.h"
+
+namespace JSI_Editor
+{
+	void SetMapSettings(const ScriptInterface& scriptInterface, JS::HandleValue data)
+	{
+		if (!g_Game || !g_Game->IsEditorGame())
+			return;
+
+		CSimulation2* sim = g_Game->GetSimulation2();
+		ENSURE(sim);
+	
+		ScriptRequest rqSim(sim->GetScriptInterface());
+		JS::RootedValue mapSettings(rqSim.cx, Script::CloneValueFromOtherCompartment(sim->GetScriptInterface(), scriptInterface, data));
+		sim->SetMapSettings(mapSettings);
+	}
+
+	JS::Value GetMapSettings(const ScriptInterface& scriptInterface)
+	{
+		if (!g_Game || !g_Game->IsEditorGame())
+			return JS::UndefinedHandleValue;
+
+		CSimulation2* sim = g_Game->GetSimulation2();
+		ENSURE(sim);
+
+		ScriptRequest rqSim(sim->GetScriptInterface());
+		JS::RootedValue mapSettings(rqSim.cx);
+		sim->GetMapSettings(&mapSettings);
+
+		return Script::CloneValueFromOtherCompartment(scriptInterface, sim->GetScriptInterface(), mapSettings);
+	}
+
+	bool IsEditorRunning(const ScriptInterface& UNUSED(scriptInterface))
+	{
+		if (!g_Game)
+			return false;
+
+		return g_Game->IsEditorGame();
+	}
+
+	void RevealMap(const ScriptInterface& UNUSED(scriptInterface))
+	{
+		if (!g_Game || !g_Game->IsEditorGame())
+			return;
+
+		CSimulation2* sim = g_Game->GetSimulation2();
+		ENSURE(sim);
+
+		CmpPtr<ICmpRangeManager> cmpRangeManager(*sim, SYSTEM_ENTITY);
+		if (cmpRangeManager)
+			cmpRangeManager->SetLosRevealAll(-1, true);
+	}
+
+	std::vector<std::vector<std::wstring>> GetCivData(const ScriptInterface& UNUSED(scriptInterface))
+	{
+		if (!g_Game || !g_Game->IsEditorGame())
+		{
+			std::vector<std::vector<std::wstring>> emptyValue;
+			return emptyValue;
+		}
+
+		CSimulation2* sim = g_Game->GetSimulation2();
+		ENSURE(sim);
+
+		CmpPtr<ICmpTemplateManager> cmpTemplateManager(*sim, SYSTEM_ENTITY);
+		return cmpTemplateManager->GetCivData();
+	}
+
+	JS::Value GetAIData(const ScriptInterface& scriptInterface)
+	{
+		if (!g_Game || !g_Game->IsEditorGame())
+			return JS::UndefinedHandleValue;
+
+		CSimulation2* sim = g_Game->GetSimulation2();
+		ENSURE(sim);
+
+		ScriptRequest rqSim(sim->GetScriptInterface());
+		JS::RootedValue aiData(rqSim.cx, ICmpAIManager::GetAIs(sim->GetScriptInterface()));
+
+		return Script::CloneValueFromOtherCompartment(scriptInterface, sim->GetScriptInterface(), aiData);
+	}
+
+	void SaveMap(const ScriptInterface& UNUSED(scriptInterface), std::wstring filename)
+	{
+		if (!g_Game || !g_Game->IsEditorGame())
+			return;
+
+		CMapWriter writer;
+		VfsPath pathname = VfsPath(filename).ChangeExtension(L".pmp");
+		writer.SaveMap(pathname,
+			g_Game->GetWorld()->GetTerrain(),
+			&g_Renderer.GetSceneRenderer().GetWaterManager(), &g_Renderer.GetSceneRenderer().GetSkyManager(),
+			&g_LightEnv, g_Game->GetView()->GetCamera(), g_Game->GetView()->GetCinema(),
+			&g_Renderer.GetPostprocManager(),
+			g_Game->GetSimulation2());
+	}
+
+	void RegisterScriptFunctions(const ScriptRequest& rq)
+	{
+		ScriptFunction::Register<&IsEditorRunning>(rq, "IsEditorRunning");
+		ScriptFunction::Register<&SetMapSettings>(rq, "SetMapSettings");
+		ScriptFunction::Register<&GetMapSettings>(rq, "GetMapSettings");
+		ScriptFunction::Register<&RevealMap>(rq, "RevealMap");
+		ScriptFunction::Register<&GetCivData>(rq, "GetCivData");
+		ScriptFunction::Register<&GetAIData>(rq, "GetAIData");
+		ScriptFunction::Register<&SaveMap>(rq, "SaveMap");
+
+	}
+}
+