Index: binaries/data/mods/public/audio/interface/alarm/alarm_ally_defeat.xml
===================================================================
--- /dev/null
+++ binaries/data/mods/public/audio/interface/alarm/alarm_ally_defeat.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8" standalone="no" ?>
+<SoundGroup>
+	<Omnipresent>1</Omnipresent>
+	<HeardBy>owner</HeardBy>
+	<Gain>1</Gain>
+	<Priority>100</Priority>
+	<ConeGain>1</ConeGain>
+	<Looping>0</Looping>
+	<RandOrder>1</RandOrder>
+	<RandGain>1</RandGain>
+	<RandPitch>1</RandPitch>
+	<Threshold>1</Threshold>
+	<Path>audio/interface/alarm/</Path>
+	<Sound>alarmdefeat_1.ogg</Sound>
+</SoundGroup>
Index: binaries/data/mods/public/audio/interface/alarm/alarm_defeat.xml
===================================================================
--- binaries/data/mods/public/audio/interface/alarm/alarm_defeat.xml
+++ binaries/data/mods/public/audio/interface/alarm/alarm_defeat.xml
@@ -1,5 +1,7 @@
 <?xml version="1.0" encoding="utf-8" standalone="no" ?>
 <SoundGroup>
+	<Omnipresent>1</Omnipresent>
+	<HeardBy>owner</HeardBy>
 	<Gain>1</Gain>
 	<Priority>100</Priority>
 	<ConeGain>1</ConeGain>
Index: binaries/data/mods/public/audio/interface/alarm/alarm_enemy_defeat.xml
===================================================================
--- /dev/null
+++ binaries/data/mods/public/audio/interface/alarm/alarm_enemy_defeat.xml
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8" standalone="no" ?>
+<SoundGroup>
+	<Omnipresent>1</Omnipresent>
+	<HeardBy>owner</HeardBy>
+	<Gain>1</Gain>
+	<Priority>100</Priority>
+	<ConeGain>1</ConeGain>
+	<Looping>0</Looping>
+	<RandOrder>1</RandOrder>
+	<RandGain>1</RandGain>
+	<RandPitch>1</RandPitch>
+	<Threshold>1</Threshold>
+	<Path>audio/interface/alarm/</Path>
+	<Sound>alarmdefeat_1.ogg</Sound>
+</SoundGroup>
Index: binaries/data/mods/public/simulation/components/Player.js
===================================================================
--- binaries/data/mods/public/simulation/components/Player.js
+++ binaries/data/mods/public/simulation/components/Player.js
@@ -435,6 +435,28 @@
 		return;
 	}
 
+	if (newState === "defeated")
+	{
+		let cmpSoundManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_SoundManager);
+		let cmpPlayerManager = Engine.QueryInterface(SYSTEM_ENTITY, IID_PlayerManager);
+		let dummyPosition = new Vector3D();
+		let players = cmpPlayerManager.GetAllPlayers();
+		for (let i = 1; i < players.length; ++i)
+		{
+			let playerEnt = players[i];
+			let cmpSound = Engine.QueryInterface(playerEnt, IID_Sound);
+			if (!cmpSound)
+				continue;
+
+			if (playerEnt === this.entity)
+				cmpSoundManager.PlaySoundGroupAtPosition(cmpSound.GetSoundGroup("defeat"), dummyPosition)
+			else if (this.IsAlly(i))
+				cmpSoundManager.PlaySoundGroupAtPosition(cmpSound.GetSoundGroup("ally_defeat"), dummyPosition)
+			else
+				cmpSoundManager.PlaySoundGroupAtPosition(cmpSound.GetSoundGroup("enemy_defeat"), dummyPosition)
+		}
+	}
+
 	this.state = newState;
 
 	let won = newState == "won";
Index: binaries/data/mods/public/simulation/templates/special/player/player.xml
===================================================================
--- binaries/data/mods/public/simulation/templates/special/player/player.xml
+++ binaries/data/mods/public/simulation/templates/special/player/player.xml
@@ -89,29 +89,36 @@
     </Rates>
     <Interval>1000</Interval>
   </ResourceTrickle>
+  <Sound>
+    <SoundGroups>
+      <defeat>interface/alarm/alarm_defeat.xml</defeat>
+      <ally_defeat>interface/alarm/alarm_ally_defeat.xml</ally_defeat>
+      <enemy_defeat>interface/alarm/alarm_enemy_defeat.xml</enemy_defeat>
+    </SoundGroups>
+  </Sound>
   <StatisticsTracker>
-	<!-- The summary screen and lobby rankings expect these classes, but additional classes may be added -->
-	<UnitClasses datatype="tokens">
-		Infantry
-		Worker
-		FemaleCitizen
-		Cavalry
-		Champion
-		Hero
-		Siege
-		Ship
-		Domestic
-		Trader
-	</UnitClasses>
-	<StructureClasses datatype="tokens">
-		House
-		Economic
-		Outpost
-		Military
-		Fortress
-		CivCentre
-		Wonder
-	</StructureClasses>
+    <!-- The summary screen and lobby rankings expect these classes, but additional classes may be added -->
+    <UnitClasses datatype="tokens">
+      Infantry
+      Worker
+      FemaleCitizen
+      Cavalry
+      Champion
+      Hero
+      Siege
+      Ship
+      Domestic
+      Trader
+    </UnitClasses>
+    <StructureClasses datatype="tokens">
+      House
+      Economic
+      Outpost
+      Military
+      Fortress
+      CivCentre
+      Wonder
+    </StructureClasses>
   </StatisticsTracker>
   <TechnologyManager/>
 </Entity>