diff --git a/OpenRA.Mods.Cnc/Widgets/Logic/ProductionTooltipLogic.cs b/OpenRA.Mods.Cnc/Widgets/Logic/ProductionTooltipLogic.cs
index 5870a9df0c..75bc3009f2 100644
--- a/OpenRA.Mods.Cnc/Widgets/Logic/ProductionTooltipLogic.cs
+++ b/OpenRA.Mods.Cnc/Widgets/Logic/ProductionTooltipLogic.cs
@@ -32,8 +32,10 @@ namespace OpenRA.Mods.Cnc.Widgets.Logic
 			var powerLabel = widget.Get<LabelWidget>("POWER");
 			var timeLabel = widget.Get<LabelWidget>("TIME");
 			var costLabel = widget.Get<LabelWidget>("COST");
+			var descLabel = widget.Get<LabelWidget>("DESC");
 
 			var font = Game.Renderer.Fonts[nameLabel.Font];
+			var descFont = Game.Renderer.Fonts[descLabel.Font];
 			var requiresFont = Game.Renderer.Fonts[requiresLabel.Font];
 			string lastActor = null;
 
@@ -70,12 +72,18 @@ namespace OpenRA.Mods.Cnc.Widgets.Logic
 				costLabel.GetColor = () => pr.DisplayCash + pr.DisplayOre >= cost
 					? Color.White : Color.Red;
 
-				var leftWidth = Math.Max(font.Measure(tooltip.Name).X, requiresFont.Measure(requiresString).X);
+				var descString = tooltip.Description.Replace("\\n", "\n");
+				descLabel.GetText = () => descString;
+
+				var leftWidth = new [] {font.Measure(tooltip.Name).X, requiresFont.Measure(requiresString).X, descFont.Measure(descString).X}.Aggregate(Math.Max);
 				var rightWidth = new [] {font.Measure(powerString).X, font.Measure(timeString).X, font.Measure(costString).X}.Aggregate(Math.Max);
 				timeLabel.Bounds.X = powerLabel.Bounds.X = costLabel.Bounds.X = leftWidth + 2*nameLabel.Bounds.X;
 				widget.Bounds.Width = leftWidth + rightWidth + 3*nameLabel.Bounds.X;
 
-				widget.Bounds.Height = power != 0 ? 65 : 45;
+				var leftHeight = font.Measure(tooltip.Name).Y + requiresFont.Measure(requiresString).Y + descFont.Measure(descString).Y;
+				var rightHeight = font.Measure(powerString).Y + font.Measure(timeString).Y + font.Measure(costString).Y;
+				widget.Bounds.Height = Math.Max(leftHeight, rightHeight)*3/2 + 3*nameLabel.Bounds.Y;
+
 				lastActor = actor;
 			};
 		}
diff --git a/mods/cnc/chrome/tooltips.yaml b/mods/cnc/chrome/tooltips.yaml
index 06b92935de..6860027c99 100644
--- a/mods/cnc/chrome/tooltips.yaml
+++ b/mods/cnc/chrome/tooltips.yaml
@@ -41,6 +41,7 @@ Background@WORLD_TOOLTIP:
 			Y:19
 			Height:23
 			Font:Bold
+
 Background@PRODUCTION_TOOLTIP:
 	Logic:ProductionTooltipLogic
 	Background:panel-black
@@ -56,6 +57,12 @@ Background@PRODUCTION_TOOLTIP:
 			Y:19
 			Height:23
 			Font:TinyBold
+		Label@DESC:
+			X:5
+			Y:39
+			Height:23
+			Font:TinyBold
+			VAlign:Top
 		Label@COST:
 			Height:23
 			Font:Bold
diff --git a/mods/cnc/rules/structures.yaml b/mods/cnc/rules/structures.yaml
index 502c0d51af..c84fb9e367 100644
--- a/mods/cnc/rules/structures.yaml
+++ b/mods/cnc/rules/structures.yaml
@@ -52,12 +52,13 @@ NUKE:
 	Tooltip:
 		Name: Power Plant
 		Icon: nukeicnh
-		Description: Provides power for other structures
+		Description: Generates power
 	ProvidesCustomPrerequisite:
 		Prerequisite: anypower
 	Buildable:
 		BuildPaletteOrder: 10
 		Owner: gdi,nod
+		Prerequisites: fact
 	Building:
 		Power: 100
 		Footprint: x_ xx
@@ -75,7 +76,7 @@ PROC:
 	Tooltip:
 		Name: Tiberium Refinery
 		Icon: procicnh
-		Description: Processes raw Tiberium into useable resources
+		Description: Processes raw Tiberium\ninto useable resources
 	Buildable:
 		BuildPaletteOrder: 30
 		Prerequisites: anypower
@@ -232,7 +233,7 @@ AFLD:
 	Tooltip:
 		Name: Airstrip
 		Icon: afldicnh
-		Description: Provides a dropzone for vehicle reinforcements
+		Description: Provides a dropzone\nfor vehicle reinforcements
 	ProvidesCustomPrerequisite:
 		Prerequisite: vehicleproduction
 	Buildable:
@@ -274,7 +275,7 @@ WEAP:
 	Tooltip:
 		Name: Weapons Factory
 		Icon: weapicnh
-		Description: Assembly point for vehicle reinforcements
+		Description: Assembly point for\nvehicle reinforcements
 	ProvidesCustomPrerequisite:
 		Prerequisite: vehicleproduction
 	Buildable:
@@ -403,7 +404,7 @@ HPAD:
 	Tooltip:
 		Name: Helipad
 		Icon:hpadicnh
-		Description: Produces and reloads helicopters
+		Description: Produces, rearms and\nrepairs helicopters
 	Buildable:
 		BuildPaletteOrder: 50
 		Prerequisites: barracks
@@ -482,7 +483,7 @@ TMPL:
 	Tooltip:
 		Name: Temple of Nod
 		Icon: tmplicnh
-		Description: Place of worship and secret missile silo.\nRequires power to operate.
+		Description: Place of worship and secret missile silo.\n  Requires power to operate.
 	Buildable:
 		BuildPaletteOrder: 100
 		Prerequisites: hq
@@ -516,7 +517,7 @@ OBLI:
 	Tooltip:
 		Name: Obelisk of Light
 		Icon:obliicnh
-		Description: Advanced base defense. Requires power\nto operate.\n  Strong vs Tanks, Infantry\n  Weak vs Aircraft
+		Description: Advanced base defense.\n  Requires power to operate.\n  Strong vs Tanks, Infantry\n  Weak vs Aircraft
 	Buildable:
 		Queue: Defense
 		BuildPaletteOrder: 60
@@ -692,7 +693,7 @@ GTWR:
 	Tooltip:
 		Name: Guard Tower
 		Icon: gtwricnh
-		Description: Basic defensive structure.\n  Strong vs Infantry, Light Vehicles\n  Weak vs Tanks, Aircraft
+		Description: Basic defensive structure.\n  Strong vs Infantry\n  Weak vs Tanks, Aircraft
 	Buildable:
 		Queue: Defense
 		BuildPaletteOrder: 40