diff --git a/TremorWorld.cs b/TremorWorld.cs
index a5d993f7..ec17f96d 100644
--- a/TremorWorld.cs
+++ b/TremorWorld.cs
@@ -46,15 +46,23 @@ private Boss FindBossMatch(string boss)
 
 		public static Dictionary<Boss, bool> downedBoss;
 
-		public override void Initialize()
+		private void Init()
 		{
-			downedBoss = new Dictionary<Boss, bool>();
-			foreach (Boss boss in Enum.GetValues(typeof(Boss)).Cast<Boss>())
+			if (downedBoss == null)
 			{
-				downedBoss[boss] = false;
+				downedBoss = new Dictionary<Boss, bool>();
+				foreach (Boss boss in Enum.GetValues(typeof(Boss)).Cast<Boss>())
+				{
+					downedBoss[boss] = false;
+				}
 			}
 		}
 
+		public override void Initialize()
+		{
+			Init();
+		}
+
 		public override TagCompound Save()
 		{
 			var downed = new List<string>();
@@ -132,9 +140,11 @@ public override void NetSend(BinaryWriter writer)
 			}
 		}
 
-
+		//NetReceive is called before Initialize when joining a server
 		public override void NetReceive(BinaryReader reader)
 		{
+			Init();
+
 			int bossCount = reader.ReadInt32();
 			int allocations = reader.ReadInt32();