diff --git a/OpenRA.Game/Widgets/WorldTooltipWidget.cs b/OpenRA.Game/Widgets/WorldTooltipWidget.cs
index 1bd7f9f1ed..78ee214449 100644
--- a/OpenRA.Game/Widgets/WorldTooltipWidget.cs
+++ b/OpenRA.Game/Widgets/WorldTooltipWidget.cs
@@ -19,10 +19,15 @@ namespace OpenRA.Widgets
 	public class WorldTooltipWidget : Widget
 	{
 		public int TooltipDelay = 10;
-		public WorldTooltipWidget() : base() { }
+		readonly World world;
+		[ObjectCreator.UseCtor]
+		public WorldTooltipWidget( [ObjectCreator.Param] World world )
+		{
+			this.world = world;
+		}
+
 		public override void DrawInner( WorldRenderer wr )
 		{
-			var world = Game.world;
 			if (Viewport.TicksSinceLastMove < TooltipDelay || world == null || world.LocalPlayer == null)
 				return;
 
diff --git a/OpenRA.Mods.RA/Widgets/MoneyBinWidget.cs b/OpenRA.Mods.RA/Widgets/MoneyBinWidget.cs
index 28ca555e73..102b08b720 100755
--- a/OpenRA.Mods.RA/Widgets/MoneyBinWidget.cs
+++ b/OpenRA.Mods.RA/Widgets/MoneyBinWidget.cs
@@ -19,11 +19,15 @@ namespace OpenRA.Mods.RA.Widgets
 	{
 		public bool SplitOreAndCash = false;
 
-		public MoneyBinWidget() : base() { }
+		readonly World world;
+		[ObjectCreator.UseCtor]
+		public MoneyBinWidget( [ObjectCreator.Param] World world )
+		{
+			this.world = world;
+		}
 
 		public override void DrawInner( WorldRenderer wr )
 		{
-			var world = Game.world;
 			if( world.LocalPlayer == null ) return;
 
 			var playerResources = world.LocalPlayer.PlayerActor.Trait<PlayerResources>();
diff --git a/OpenRA.Mods.RA/Widgets/PowerBinWidget.cs b/OpenRA.Mods.RA/Widgets/PowerBinWidget.cs
index 2e9633b11c..e6b71e2b55 100755
--- a/OpenRA.Mods.RA/Widgets/PowerBinWidget.cs
+++ b/OpenRA.Mods.RA/Widgets/PowerBinWidget.cs
@@ -25,9 +25,15 @@ namespace OpenRA.Mods.RA.Widgets
 		float? lastPowerDrainedPos;
 		string powerCollection;
 
+		readonly World world;
+		[ObjectCreator.UseCtor]
+		public PowerBinWidget( [ObjectCreator.Param] World world )
+		{
+			this.world = world;
+		}
+
 		public override void DrawInner( WorldRenderer wr )
 		{
-			var world = Game.world;
 			if( world.LocalPlayer == null ) return;
 
 			powerCollection = "power-" + world.LocalPlayer.Country.Race;
diff --git a/OpenRA.Mods.RA/Widgets/RadarBinWidget.cs b/OpenRA.Mods.RA/Widgets/RadarBinWidget.cs
index d219efafb3..4d4da286a4 100755
--- a/OpenRA.Mods.RA/Widgets/RadarBinWidget.cs
+++ b/OpenRA.Mods.RA/Widgets/RadarBinWidget.cs
@@ -29,7 +29,6 @@ namespace OpenRA.Mods.RA.Widgets
 		bool hasRadar = false;
 		string radarCollection;
 		
-		World world;
 		float previewScale = 0;
 		RectangleF mapRect = Rectangle.Empty;
 		int2 previewOrigin;
@@ -38,15 +37,16 @@ namespace OpenRA.Mods.RA.Widgets
 		Sprite customTerrainSprite;
 		Sprite actorSprite;
 		Sprite shroudSprite;
-		
-		public void SetWorld(World world)
+
+		readonly World world;
+		[ObjectCreator.UseCtor]
+		public RadarBinWidget( [ObjectCreator.Param] World world )
 		{
 			this.world = world;
 			var size = Math.Max(world.Map.Width, world.Map.Height);
 			previewScale = Math.Min(192f / world.Map.Width, 192f / world.Map.Height);
 			previewOrigin = new int2(9 + (int)(radarOpenOrigin.X + previewScale * (size - world.Map.Width)/2), (int)(radarOpenOrigin.Y + previewScale * (size - world.Map.Height)/2));
 			mapRect = new RectangleF(previewOrigin.X, previewOrigin.Y, (int)(world.Map.Width * previewScale), (int)(world.Map.Height * previewScale));
-			
 
 			// Only needs to be done once
 			var terrainBitmap = Minimap.TerrainBitmap(world.Map);
@@ -54,7 +54,7 @@ namespace OpenRA.Mods.RA.Widgets
 			var s = new Size( terrainBitmap.Width, terrainBitmap.Height );
 			terrainSprite = new Sprite(new Sheet(s), r, TextureChannel.Alpha);
 			terrainSprite.sheet.Texture.SetData(terrainBitmap);
-			
+
 			// Data is set in Tick()
 			customTerrainSprite = new Sprite(new Sheet(s), r, TextureChannel.Alpha);
 			actorSprite = new Sprite(new Sheet(s), r, TextureChannel.Alpha);
@@ -160,10 +160,6 @@ namespace OpenRA.Mods.RA.Widgets
 		int updateTicks = 0;
 		public override void Tick()
 		{
-			var w = Game.world;
-			if( world != w )
-				SetWorld( w );
-
 			var hasRadarNew = world.Queries.OwnedBy[world.LocalPlayer]
 				.WithTrait<ProvidesRadar>()
 				.Any(a => a.Trait.IsActive);
diff --git a/OpenRA.Mods.RA/Widgets/SpecialPowerBinWidget.cs b/OpenRA.Mods.RA/Widgets/SpecialPowerBinWidget.cs
index d46f158588..3a8e2e3d2b 100755
--- a/OpenRA.Mods.RA/Widgets/SpecialPowerBinWidget.cs
+++ b/OpenRA.Mods.RA/Widgets/SpecialPowerBinWidget.cs
@@ -24,8 +24,13 @@ namespace OpenRA.Mods.RA.Widgets
 		Animation ready;
 		Animation clock;
 		readonly List<Pair<Rectangle, Action<MouseInput>>> buttons = new List<Pair<Rectangle,Action<MouseInput>>>();
-		
-		public SpecialPowerBinWidget() : base() { }
+
+		readonly World world;
+		[ObjectCreator.UseCtor]
+		public SpecialPowerBinWidget( [ObjectCreator.Param] World world )
+		{
+			this.world = world;
+		}
 		
 		public override void Initialize()
 		{
@@ -65,7 +70,6 @@ namespace OpenRA.Mods.RA.Widgets
 		
 		public override void DrawInner( WorldRenderer wr )
 		{
-			var world = Game.world;
 			buttons.Clear();
 
 			if( world.LocalPlayer == null ) return;