diff --git a/OpenRA.Game/Game.cs b/OpenRA.Game/Game.cs
index 804939411b..881949eacc 100644
--- a/OpenRA.Game/Game.cs
+++ b/OpenRA.Game/Game.cs
@@ -14,8 +14,8 @@ using System.Drawing;
 using System.IO;
 using System.Linq;
 using System.Net;
-using OpenRA.FileSystem;
 using MaxMind.GeoIP2;
+using OpenRA.FileSystem;
 using OpenRA.Graphics;
 using OpenRA.Network;
 using OpenRA.Primitives;
@@ -464,7 +464,7 @@ namespace OpenRA
 			return shellmaps.Random(CosmeticRandom);
 		}
 
-		static bool quit;
+		static RunStatus state = RunStatus.Running;
 		public static event Action OnQuit = () => { };
 
 		static double idealFrameTime;
@@ -473,7 +473,7 @@ namespace OpenRA
 			idealFrameTime = 1.0 / fps;
 		}
 
-		internal static void Run()
+		internal static RunStatus Run()
 		{
 			if (Settings.Graphics.MaxFramerate < 1)
 			{
@@ -483,7 +483,7 @@ namespace OpenRA
 
 			SetIdealFrameTime(Settings.Graphics.MaxFramerate);
 
-			while (!quit)
+			while (state == RunStatus.Running)
 			{
 				if (Settings.Graphics.CapFramerate)
 				{
@@ -506,9 +506,19 @@ namespace OpenRA
 			Renderer.Device.Dispose();
 
 			OnQuit();
+
+			return state;
 		}
 
-		public static void Exit() { quit = true; }
+		public static void Exit()
+		{
+			state = RunStatus.Success;
+		}
+
+		public static void Restart()
+		{
+			state = RunStatus.Restart;
+		}
 
 		public static Action<Color, string, string> AddChatLine = (c, n, s) => { };
 
diff --git a/OpenRA.Game/Support/Program.cs b/OpenRA.Game/Support/Program.cs
index 4257d61c5a..1313760448 100644
--- a/OpenRA.Game/Support/Program.cs
+++ b/OpenRA.Game/Support/Program.cs
@@ -1,6 +1,6 @@
 #region Copyright & License Information
 /*
- * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
  * This file is part of OpenRA, which is free software. It is made
  * available to you under the terms of the GNU General Public License
  * as published by the Free Software Foundation. For more information,
@@ -11,30 +11,37 @@
 using System;
 using System.Diagnostics;
 using System.Linq;
+using System.Reflection;
 using System.Text;
 
 namespace OpenRA
 {
+	enum RunStatus
+	{
+		Error = -1,
+		Success = 0,
+		Restart = 1,
+		Running = int.MaxValue
+	}
+
 	static class Program
 	{
 		[STAThread]
-		static void Main(string[] args)
+		static int Main(string[] args)
 		{
 			if (Debugger.IsAttached || args.Contains("--just-die"))
-			{
-				Run(args);
-				return;
-			}
+				return (int)Run(args);
 
 			AppDomain.CurrentDomain.UnhandledException += (_, e) => FatalError((Exception)e.ExceptionObject);
 
 			try
 			{
-				Run(args);
+				return (int)Run(args);
 			}
 			catch (Exception e)
 			{
 				FatalError(e);
+				return (int)RunStatus.Error;
 			}
 		}
 
@@ -102,11 +109,25 @@ namespace OpenRA
 			return sb;
 		}
 
-		static void Run(string[] args)
+		static RunStatus Run(string[] args)
 		{
+			if (AppDomain.CurrentDomain.IsDefaultAppDomain())
+			{
+				var name = Assembly.GetEntryAssembly().GetName();
+				int retCode;
+				do
+				{
+					var domain = AppDomain.CreateDomain("Game");
+					retCode = domain.ExecuteAssemblyByName(name, args);
+					AppDomain.Unload(domain);
+				}
+				while (retCode == (int)RunStatus.Restart);
+				return RunStatus.Success;
+			}
+
 			Game.Initialize(new Arguments(args));
 			GC.Collect();
-			Game.Run();
+			return Game.Run();
 		}
 	}
 }
\ No newline at end of file
diff --git a/OpenRA.Mods.RA/Widgets/Logic/SettingsLogic.cs b/OpenRA.Mods.RA/Widgets/Logic/SettingsLogic.cs
index 0510e992eb..f3e829fe4e 100644
--- a/OpenRA.Mods.RA/Widgets/Logic/SettingsLogic.cs
+++ b/OpenRA.Mods.RA/Widgets/Logic/SettingsLogic.cs
@@ -28,6 +28,24 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 		WorldRenderer worldRenderer;
 		SoundDevice soundDevice;
 
+		static readonly string originalSoundDevice;
+		static readonly string originalSoundEngine;
+		static readonly WindowMode originalGraphicsMode;
+		static readonly string originalGraphicsRenderer;
+		static readonly int2 originalGraphicsWindowedSize;
+		static readonly int2 originalGraphicsFullscreenSize;
+
+		static SettingsLogic()
+		{
+			var original = Game.Settings;
+			originalSoundDevice = original.Sound.Device;
+			originalSoundEngine = original.Sound.Engine;
+			originalGraphicsMode = original.Graphics.Mode;
+			originalGraphicsRenderer = original.Graphics.Renderer;
+			originalGraphicsWindowedSize = original.Graphics.WindowedSize;
+			originalGraphicsFullscreenSize = original.Graphics.FullscreenSize;
+		}
+
 		[ObjectCreator.UseCtor]
 		public SettingsLogic(Widget widget, Action onExit, WorldRenderer worldRenderer)
 		{
@@ -44,9 +62,25 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 			panelContainer.Get<ButtonWidget>("BACK_BUTTON").OnClick = () =>
 			{
 				leavePanelActions[settingsPanel]();
-				Game.Settings.Save();
-				Ui.CloseWindow();
-				onExit();
+				var current = Game.Settings;
+				current.Save();
+
+				Action closeAndExit = () => { Ui.CloseWindow(); onExit(); };
+				if (originalSoundDevice != current.Sound.Device ||
+					originalSoundEngine != current.Sound.Engine ||
+					originalGraphicsMode != current.Graphics.Mode ||
+					originalGraphicsRenderer != current.Graphics.Renderer ||
+					originalGraphicsWindowedSize != current.Graphics.WindowedSize ||
+					originalGraphicsFullscreenSize != current.Graphics.FullscreenSize)
+					ConfirmationDialogs.PromptConfirmAction(
+						"Restart Now?",
+						"Some changes will not be applied until\nthe game is restarted. Restart now?",
+						Game.Restart,
+						closeAndExit,
+						"Restart Now",
+						"Restart Later");
+				else
+					closeAndExit();
 			};
 
 			panelContainer.Get<ButtonWidget>("RESET_BUTTON").OnClick = () =>
diff --git a/OpenRA.Renderer.Sdl2/Sdl2Input.cs b/OpenRA.Renderer.Sdl2/Sdl2Input.cs
index b90b4c7604..6b133589ae 100644
--- a/OpenRA.Renderer.Sdl2/Sdl2Input.cs
+++ b/OpenRA.Renderer.Sdl2/Sdl2Input.cs
@@ -170,9 +170,7 @@ namespace OpenRA.Renderer.Sdl2
 						// Special case workaround for windows users
 						if (e.key.keysym.sym == SDL.SDL_Keycode.SDLK_F4 && mods.HasModifier(Modifiers.Alt) &&
 							Platform.CurrentPlatform == PlatformType.Windows)
-						{
 							Game.Exit();
-						}
 						else
 							inputHandler.OnKeyInput(keyEvent);