diff --git a/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala b/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
index 21ae82f69..d66750f7b 100644
--- a/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
+++ b/common/src/main/scala/net/psforever/packet/GamePacketOpcode.scala
@@ -561,7 +561,7 @@ object GamePacketOpcode extends Enumeration {
     case 0xca => noDecoder(OutfitBenefitMessage)
     case 0xcb => noDecoder(EmpireChangeTimeMessage)
     case 0xcc => noDecoder(ClockCalibrationMessage)
-    case 0xcd => noDecoder(DensityLevelUpdateMessage)
+    case 0xcd => game.DensityLevelUpdateMessage.decode
     case 0xce => noDecoder(ActOfGodMessage)
     case 0xcf => noDecoder(AvatarAwardMessage)
 
diff --git a/common/src/main/scala/net/psforever/packet/game/DelayedPathMountMsg.scala b/common/src/main/scala/net/psforever/packet/game/DelayedPathMountMsg.scala
index 4c713e096..643898e6e 100644
--- a/common/src/main/scala/net/psforever/packet/game/DelayedPathMountMsg.scala
+++ b/common/src/main/scala/net/psforever/packet/game/DelayedPathMountMsg.scala
@@ -1,4 +1,4 @@
-// Copyright (c) 2016 PSForever.net to present
+// Copyright (c) 2017 PSForever
 package net.psforever.packet.game
 
 import net.psforever.packet.{GamePacketOpcode, Marshallable, PlanetSideGamePacket}
diff --git a/common/src/main/scala/net/psforever/packet/game/DensityLevelUpdateMessage.scala b/common/src/main/scala/net/psforever/packet/game/DensityLevelUpdateMessage.scala
new file mode 100644
index 000000000..6ad1bfe65
--- /dev/null
+++ b/common/src/main/scala/net/psforever/packet/game/DensityLevelUpdateMessage.scala
@@ -0,0 +1,47 @@
+// Copyright (c) 2017 PSForever
+package net.psforever.packet.game
+
+import net.psforever.packet.{GamePacketOpcode, Marshallable, PacketHelpers, PlanetSideGamePacket}
+import scodec.{Attempt, Codec, Err}
+import scodec.codecs._
+import shapeless.{::, HNil}
+
+/**
+  * na
+  * @param zone_id the continent
+  * @param building_id the building
+  * @param density na
+  */
+final case class DensityLevelUpdateMessage(zone_id : PlanetSideGUID,
+                                           building_id : PlanetSideGUID,
+                                           density : List[Int])
+  extends PlanetSideGamePacket {
+  type Packet = DensityLevelUpdateMessage
+  def opcode = GamePacketOpcode.DensityLevelUpdateMessage
+  def encode = DensityLevelUpdateMessage.encode(this)
+}
+
+object DensityLevelUpdateMessage extends Marshallable[DensityLevelUpdateMessage] {
+  implicit val codec : Codec[DensityLevelUpdateMessage] = (
+    ("zone_id" | PlanetSideGUID.codec) ::
+      ("building_id" | PlanetSideGUID.codec) ::
+      ("density" | PacketHelpers.listOfNSized(8, uint(3)))
+    ).exmap[DensityLevelUpdateMessage] (
+    {
+      case a :: b :: c :: HNil =>
+        Attempt.Successful(DensityLevelUpdateMessage(a, b, c))
+    },
+    {
+      case DensityLevelUpdateMessage(a, b, c) =>
+        if(c.length != 8) {
+          Attempt.Failure(Err("list must have 8 entries"))
+        }
+        else if(c.count(i => { i < 0 || i > 7 }) > 0) {
+          Attempt.Failure(Err("list entries must be 0-7 inclusive"))
+        }
+        else {
+          Attempt.Successful(a :: b :: c :: HNil)
+        }
+    }
+  )
+}
diff --git a/common/src/test/scala/game/DensityLevelUpdateMessageTest.scala b/common/src/test/scala/game/DensityLevelUpdateMessageTest.scala
new file mode 100644
index 000000000..e6775ae10
--- /dev/null
+++ b/common/src/test/scala/game/DensityLevelUpdateMessageTest.scala
@@ -0,0 +1,52 @@
+// Copyright (c) 2017 PSForever
+package game
+
+import org.specs2.mutable._
+import net.psforever.packet._
+import net.psforever.packet.game._
+import scodec.bits._
+
+class DensityLevelUpdateMessageTest extends Specification {
+  val string = hex"cd 0100 1f4e 000000"
+
+  "decode" in {
+    PacketCoding.DecodePacket(string).require match {
+      case DensityLevelUpdateMessage(zone_id, building_id, unk) =>
+        zone_id mustEqual PlanetSideGUID(1)
+        building_id mustEqual PlanetSideGUID(19999)
+        unk.length mustEqual 8
+        unk.head mustEqual 0
+        unk(1) mustEqual 0
+        unk(2) mustEqual 0
+        unk(3) mustEqual 0
+        unk(4) mustEqual 0
+        unk(5) mustEqual 0
+        unk(6) mustEqual 0
+        unk(7) mustEqual 0
+      case _ =>
+        ko
+    }
+  }
+
+  "encode" in {
+    val msg = DensityLevelUpdateMessage(PlanetSideGUID(1), PlanetSideGUID(19999), List(0,0, 0,0, 0,0, 0,0))
+    val pkt = PacketCoding.EncodePacket(msg).require.toByteVector
+
+    pkt mustEqual string
+  }
+
+  "encode (failure; wrong number of list entries)" in {
+    val msg = DensityLevelUpdateMessage(PlanetSideGUID(1), PlanetSideGUID(19999), List(0))
+    PacketCoding.EncodePacket(msg).isSuccessful mustEqual false
+  }
+
+  "encode (failure; list number too big)" in {
+    val msg1 = DensityLevelUpdateMessage(PlanetSideGUID(1), PlanetSideGUID(19999), List(0,0, 0,0, 0,0, 0,8))
+    PacketCoding.EncodePacket(msg1).isSuccessful mustEqual false
+  }
+
+  "encode (failure; list number too small)" in {
+    val msg1 = DensityLevelUpdateMessage(PlanetSideGUID(1), PlanetSideGUID(19999), List(0,0, 0,0, 0,-1, 0,0))
+    PacketCoding.EncodePacket(msg1).isSuccessful mustEqual false
+  }
+}
\ No newline at end of file
diff --git a/pslogin/src/main/scala/WorldSessionActor.scala b/pslogin/src/main/scala/WorldSessionActor.scala
index 1fef2f1f1..4910357cb 100644
--- a/pslogin/src/main/scala/WorldSessionActor.scala
+++ b/pslogin/src/main/scala/WorldSessionActor.scala
@@ -3059,6 +3059,8 @@ class WorldSessionActor extends Actor with MDCContextAware {
         false
       )
     )
+    sendResponse(DensityLevelUpdateMessage(continentNumber, buildingNumber, List(0,0, 0,0, 0,0, 0,0))) //TODO what is density?
+    //TODO BroadcastWarpgateUpdateMessage() for warp gates
     //      sendResponse(
     //        BuildingInfoUpdateMessage(
     //          PlanetSideGUID(6),    //Ceryshen
@@ -3084,8 +3086,6 @@ class WorldSessionActor extends Actor with MDCContextAware {
     //          true                  //Boosted generator room pain field
     //        )
     //      )
-    //TODO DensityLevelUpdateMessage()
-    //TODO BroadcastWarpgateUpdateMessage() for warp gates
   }
 
   def configZone(zone : Zone) : Unit = {