diff --git a/OpenRA.FileFormats/Map/Map.cs b/OpenRA.FileFormats/Map/Map.cs
index c256789833..7628b57e17 100644
--- a/OpenRA.FileFormats/Map/Map.cs
+++ b/OpenRA.FileFormats/Map/Map.cs
@@ -117,7 +117,6 @@ namespace OpenRA.FileFormats
 		public void Save(string filepath)
 		{
 			Dictionary<string, MiniYaml> root = new Dictionary<string, MiniYaml>();
-			var d = new Dictionary<string, MiniYaml>();
 			foreach (var field in SimpleFields)
 			{
 				FieldInfo f = this.GetType().GetField(field);
diff --git a/OpenRA.FileFormats/MiniYaml.cs b/OpenRA.FileFormats/MiniYaml.cs
index 3abf5aa3df..dbd732d36b 100755
--- a/OpenRA.FileFormats/MiniYaml.cs
+++ b/OpenRA.FileFormats/MiniYaml.cs
@@ -47,7 +47,6 @@ namespace OpenRA.FileFormats
 		
 		public static MiniYaml FromList<T>(List<T>list)
 		{
-			var d = new Dictionary<string, MiniYaml>();
 			return new MiniYaml( null, list.ToDictionary( x=>x.ToString(), x=>new MiniYaml(null)));
 		}
 		
diff --git a/OpenRA.Game/Chrome.cs b/OpenRA.Game/Chrome.cs
index a4c0b0a7a9..bd4d808dba 100644
--- a/OpenRA.Game/Chrome.cs
+++ b/OpenRA.Game/Chrome.cs
@@ -83,7 +83,6 @@ namespace OpenRA
 		// mapchooser
 		Sheet mapChooserSheet;
 		Sprite mapChooserSprite;
-		int mapOffset = 0;
 						
 		public Chrome(Renderer r, Manifest m)
 		{
@@ -260,9 +259,7 @@ namespace OpenRA
 			rgbaRenderer.Flush();
 			
 			var y = r.Top + 50;
-			
-			int maxListItems = ((r.Bottom - 60 - y ) / 20);
-		
+					
 			// Don't bother showing a subset of the data
 			// This will be fixed properly when we move the map list to widgets
 			foreach (var kv in Game.AvailableMaps)
@@ -814,7 +811,6 @@ namespace OpenRA
 			}
 		}
 		
-		
 		// Return an int telling us the y coordinate at the bottom of the palette
 		int DrawBuildPalette( World world, string queueName )
 		{
diff --git a/OpenRA.Game/Game.cs b/OpenRA.Game/Game.cs
index 6dfa10385a..7c59e10453 100644
--- a/OpenRA.Game/Game.cs
+++ b/OpenRA.Game/Game.cs
@@ -78,7 +78,6 @@ namespace OpenRA
 			// Mod assemblies assumed to contain a single namespace
 			foreach (var a in m.Assemblies)
 			{
-				var failures = new List<string>();
 				var fullpath = Path.GetFullPath(a);
 
 				var asm = Assembly.LoadFile(fullpath);
diff --git a/OpenRA.Game/Server/Server.cs b/OpenRA.Game/Server/Server.cs
index b4bbbd7c7a..e223c2a570 100644
--- a/OpenRA.Game/Server/Server.cs
+++ b/OpenRA.Game/Server/Server.cs
@@ -492,8 +492,7 @@ namespace OpenRA.Server
 
 			lobbyInfo.Clients.RemoveAll(c => c.Index == toDrop.PlayerIndex);
 
-			foreach( var c in conns )
-				DispatchOrders( toDrop, toDrop.MostRecentFrame, new byte[] { 0xbf } );
+			DispatchOrders( toDrop, toDrop.MostRecentFrame, new byte[] { 0xbf } );
 			
 			if (conns.Count == 0) OnServerEmpty();
 			else SyncLobbyInfo();
diff --git a/OpenRA.Game/ShroudRenderer.cs b/OpenRA.Game/ShroudRenderer.cs
index 5f3977e7a6..05a1772763 100644
--- a/OpenRA.Game/ShroudRenderer.cs
+++ b/OpenRA.Game/ShroudRenderer.cs
@@ -33,7 +33,6 @@ namespace OpenRA
 		
 		bool dirty = true;
 		bool disabled = false;
-		Player owner;
 		Map map;
 
 		public Rectangle? bounds { get { return shroud.exploredBounds; } }
@@ -41,7 +40,6 @@ namespace OpenRA
 		public ShroudRenderer(Player owner, Map map)
 		{
 			this.shroud = owner.World.WorldActor.traits.Get<Traits.Shroud>();
-			this.owner = owner;
 			this.map = map;
 			
 			sprites = new Sprite[map.MapSize.X, map.MapSize.Y];
diff --git a/OpenRA.Game/Widgets/SpecialPowerBinWidget.cs b/OpenRA.Game/Widgets/SpecialPowerBinWidget.cs
index d7cfa5c0e8..5ee57c4d3d 100644
--- a/OpenRA.Game/Widgets/SpecialPowerBinWidget.cs
+++ b/OpenRA.Game/Widgets/SpecialPowerBinWidget.cs
@@ -34,7 +34,6 @@ namespace OpenRA.Widgets
 		Animation ready;
 		Animation clock;
 		readonly List<Pair<Rectangle, Action<MouseInput>>> buttons = new List<Pair<Rectangle,Action<MouseInput>>>();
-		string chromeCollection;
 		
 		public override void Initialize()
 		{
@@ -87,9 +86,6 @@ namespace OpenRA.Widgets
 			var numPowers = powers.Count(p => p.IsAvailable);
 			if (numPowers == 0) return;
 			
-			SupportPower tooltipItem = null;
-			int2 tooltipPos = int2.Zero;											
-
 			WidgetUtils.DrawRGBA(WidgetUtils.GetChromeImage(world, "specialbin-top"),new float2(Bounds.X,Bounds.Y));
 			for (var i = 1; i < numPowers; i++)
 				WidgetUtils.DrawRGBA(WidgetUtils.GetChromeImage(world,"specialbin-middle"), new float2(Bounds.X, Bounds.Y + i * 51));
@@ -112,9 +108,7 @@ namespace OpenRA.Widgets
 
 					if (rect.Contains(Game.chrome.lastMousePos.ToPoint()))
 					{
-						var pos = drawPos.ToInt2();
-						var tooltipBounds = new Rectangle(pos.X-3,pos.Y-3,350,54);
-						
+						var pos = drawPos.ToInt2();					
 						var tl = new int2(pos.X-3,pos.Y-3);
 						var m = new int2(pos.X+64+3,pos.Y+48+3);
 						var br = tl + new int2(64+3+20,60);
diff --git a/OpenRA.Mods.RA/Activities/DeliverOre.cs b/OpenRA.Mods.RA/Activities/DeliverOre.cs
index c75df825dd..6039b6a145 100755
--- a/OpenRA.Mods.RA/Activities/DeliverOre.cs
+++ b/OpenRA.Mods.RA/Activities/DeliverOre.cs
@@ -67,8 +67,6 @@ namespace OpenRA.Mods.RA.Activities
 
 		public IActivity Tick( Actor self )
 		{
-			var mobile = self.traits.Get<Mobile>();
-
 			if( NextActivity != null )
 				return NextActivity;
 
diff --git a/OpenRA.Mods.RA/C4Demolition.cs b/OpenRA.Mods.RA/C4Demolition.cs
index e2a7599e2b..0be8ab91ca 100644
--- a/OpenRA.Mods.RA/C4Demolition.cs
+++ b/OpenRA.Mods.RA/C4Demolition.cs
@@ -32,11 +32,7 @@ namespace OpenRA.Mods.RA
 
 	class C4Demolition : IIssueOrder, IResolveOrder
 	{
-		Actor self;
-		public C4Demolition(Actor self)
-		{
-			this.self = self;
-		}
+		public C4Demolition(Actor self)	{}
 		
 		public Order IssueOrder(Actor self, int2 xy, MouseInput mi, Actor underCursor)
 		{