Index: binaries/data/mods/public/simulation/components/Promotion.js
===================================================================
--- binaries/data/mods/public/simulation/components/Promotion.js
+++ binaries/data/mods/public/simulation/components/Promotion.js
@@ -166,6 +166,8 @@
 		}
 		this.Promote(promotedTemplateName);
 	}
+
+	Engine.PostMessage(this.entity, MT_ExperienceChanged, {});
 };
 
 Promotion.prototype.OnValueModification = function(msg)
Index: binaries/data/mods/public/simulation/components/StatusBars.js
===================================================================
--- binaries/data/mods/public/simulation/components/StatusBars.js
+++ binaries/data/mods/public/simulation/components/StatusBars.js
@@ -25,6 +25,7 @@
 	"ResourceSupplyBar",
 	"CaptureBar",
 	"HealthBar",
+	"XpBar",
 	"AuraIcons",
 	"RankIcon"
 ];
@@ -107,6 +108,12 @@
 		this.RegenerateSprites();
 };
 
+StatusBars.prototype.OnExperienceChanged = function()
+{
+	if (this.enabled)
+		this.RegenerateSprites();
+};
+
 StatusBars.prototype.UpdateColor = function()
 {
 	if (this.usedPlayerColors)
@@ -127,11 +134,11 @@
 /**
  * Generic piece of code to add a bar.
  */
-StatusBars.prototype.AddBar = function(cmpOverlayRenderer, yoffset, type, amount)
+StatusBars.prototype.AddBar = function(cmpOverlayRenderer, yoffset, type, amount, heightMultiplier = 1)
 {
 	// Size of health bar (in world-space units)
 	let width = +this.template.BarWidth;
-	let height = +this.template.BarHeight;
+	let height = +this.template.BarHeight * heightMultiplier;
 
 	// World-space offset from the unit's position
 	let offset = { "x": 0, "y": +this.template.HeightOffset, "z": 0 };
@@ -157,6 +164,18 @@
 	return height * 1.2;
 };
 
+StatusBars.prototype.AddXpBar = function(cmpOverlayRenderer, yoffset)
+{
+	if (!this.enabled)
+		return 0;
+
+	let cmpPromotion = Engine.QueryInterface(this.entity, IID_Promotion);
+	if (!cmpPromotion || !cmpPromotion.GetCurrentXp() || !cmpPromotion.GetRequiredXp())
+		return 0;
+
+	return this.AddBar(cmpOverlayRenderer, yoffset, "pack", cmpPromotion.GetCurrentXp() /  cmpPromotion.GetRequiredXp(), 2/3);
+};
+
 StatusBars.prototype.AddPackBar = function(cmpOverlayRenderer, yoffset)
 {
 	if (!this.enabled)
Index: binaries/data/mods/public/simulation/components/interfaces/Promotion.js
===================================================================
--- binaries/data/mods/public/simulation/components/interfaces/Promotion.js
+++ binaries/data/mods/public/simulation/components/interfaces/Promotion.js
@@ -1 +1,7 @@
 Engine.RegisterInterface("Promotion");
+
+/**
+ * Message of the form {}
+ * sent from Promotion component whenever the experience changes.
+ */
+Engine.RegisterMessageType("ExperienceChanged");