diff --git a/Assets/Scenes/Tests/LotObjectSimulationTest.unity b/Assets/Scenes/Tests/LotObjectSimulationTest.unity
index fe21ffc..d1177d7 100644
--- a/Assets/Scenes/Tests/LotObjectSimulationTest.unity
+++ b/Assets/Scenes/Tests/LotObjectSimulationTest.unity
@@ -154,7 +154,7 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   NeighborhoodPrefix: N002
   LotID: 22
-  ItemIdx: 1
+  ItemIndex: 22
 --- !u!4 &457597079
 Transform:
   m_ObjectHideFlags: 0
diff --git a/Assets/Scripts/OpenTS2/Content/DBPF/ObjectModuleAsset.cs b/Assets/Scripts/OpenTS2/Content/DBPF/ObjectModuleAsset.cs
index 1d4d795..2ca033a 100644
--- a/Assets/Scripts/OpenTS2/Content/DBPF/ObjectModuleAsset.cs
+++ b/Assets/Scripts/OpenTS2/Content/DBPF/ObjectModuleAsset.cs
@@ -1,3 +1,5 @@
+using System.Collections.Generic;
+
 namespace OpenTS2.Content.DBPF
 {
     /// <summary>
@@ -5,11 +7,14 @@ namespace OpenTS2.Content.DBPF
     /// </summary>
     public class ObjectModuleAsset : AbstractAsset
     {
-        public ObjectModuleAsset(int version)
+        public ObjectModuleAsset(int version, Dictionary<int, int> objectIdToSaveType)
         {
             Version = version;
+            ObjectIdToSaveType = objectIdToSaveType;
         }
 
         public int Version { get; }
+
+        public Dictionary<int, int> ObjectIdToSaveType { get; }
     }
 }
\ No newline at end of file
diff --git a/Assets/Scripts/OpenTS2/Engine/Tests/LotObjectSimulationTest.cs b/Assets/Scripts/OpenTS2/Engine/Tests/LotObjectSimulationTest.cs
index 96869db..20b49de 100644
--- a/Assets/Scripts/OpenTS2/Engine/Tests/LotObjectSimulationTest.cs
+++ b/Assets/Scripts/OpenTS2/Engine/Tests/LotObjectSimulationTest.cs
@@ -54,6 +54,18 @@ private void LoadLot(string neighborhoodPrefix, int id)
             }
 
             var lotPackage = contentManager.AddPackage(lotFullPath);
+
+            // Get the version of objects and their IDs from the Edith Object module file OBJM.
+            var objectModule =
+                lotPackage.GetAssetByTGI<ObjectModuleAsset>(new ResourceKey(instanceID: 1, groupID: GroupIDs.Local,
+                    TypeIDs.OBJM));
+            foreach (var key in objectModule.ObjectIdToSaveType.Keys)
+            {
+                Debug.Log($"item id: {key}");
+            }
+            Debug.Log($"ItemIndex: {ItemIndex}");
+            var objectToLoadSaveType = objectModule.ObjectIdToSaveType[ItemIndex];
+
             // Get the lot's OBJT / object save type table.
             var saveTable =
                 lotPackage.GetAssetByTGI<ObjectSaveTypeTableAsset>(new ResourceKey(instanceID: 0, GroupIDs.Local,
@@ -70,24 +82,20 @@ private void LoadLot(string neighborhoodPrefix, int id)
                 }
 
                 saveTypeToGuid[selector.saveType] = selector.objectGuid;
-
-                Debug.Log($"{index}: saveType: {selector.saveType} resource name: {selector.catalogResourceName}, Obj name: {def.FileName}");
+                //Debug.Log($"{index}: saveType: {selector.saveType} resource name: {selector.catalogResourceName}, Obj name: {def.FileName}");
             }
 
-            var objectToLoad = saveTable.Selectors[ItemIndex];
-            Debug.Log($"Loading object {objectToLoad.catalogResourceName} with guid {objectToLoad.objectGuid:X}");
+            Debug.Log($"ItemIndex: {ItemIndex}, saveType: {objectToLoadSaveType}");
+            var objectToLoad = saveTable.Selectors[objectToLoadSaveType];
 
             var objectDefinition = ObjectManager.Instance.GetObjectByGUID(objectToLoad.objectGuid);
             Debug.Assert(objectDefinition != null, "Could not find objd.");
 
-            // Get the version of objects from the Edith Object module file OBJM.
-            var objectModule =
-                lotPackage.GetAssetByTGI<ObjectModuleAsset>(new ResourceKey(instanceID: 1, groupID: GroupIDs.Local,
-                    TypeIDs.OBJM));
+            Debug.Log($"Loading object {objectToLoad.catalogResourceName} with guid {objectToLoad.objectGuid:X} group: {objectDefinition.GlobalTGI.GroupID:X}");
 
             // Now load the state of the object.
             var objectStateBytes = lotPackage.GetBytesByTGI(
-                    new ResourceKey(instanceID: (uint)objectToLoad.saveType, GroupIDs.Local, TypeIDs.XOBJ));
+                    new ResourceKey(instanceID: (uint)ItemIndex, GroupIDs.Local, TypeIDs.XOBJ));
             var objectState = SimsObjectCodec.DeserializeFromBytesAndVersion(objectStateBytes, objectModule.Version);
 
             // Create an entity for the object.
diff --git a/Assets/Scripts/OpenTS2/Files/Formats/DBPF/ObjectModuleCodec.cs b/Assets/Scripts/OpenTS2/Files/Formats/DBPF/ObjectModuleCodec.cs
index 664ab88..ede32be 100644
--- a/Assets/Scripts/OpenTS2/Files/Formats/DBPF/ObjectModuleCodec.cs
+++ b/Assets/Scripts/OpenTS2/Files/Formats/DBPF/ObjectModuleCodec.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using OpenTS2.Common;
 using OpenTS2.Content;
@@ -35,19 +36,18 @@ public override AbstractAsset Deserialize(byte[] bytes, ResourceKey tgi, DBPFFil
                 throw new NotImplementedException("ObjM file does not have `ObjM` magic bytes");
             }
 
+            var objectIdToSaveType = new Dictionary<int, int>();
             // Next is the number of objects.
-            int numObjects = reader.ReadInt32();
-            Debug.Log($"numObjects: {numObjects}");
+            var numObjects = reader.ReadInt32();
             for (var i = 0; i < numObjects; i++)
             {
-                int selectorSaveType = reader.ReadInt32();
-                int missingObjectSaveType = reader.ReadInt32();
-
-                Debug.Log($"selectorSaveType: {selectorSaveType}, missingObjectSaveType: {missingObjectSaveType}");
-                break;
+                // Data attribute 0x13, might be object id.
+                int dataAttr = reader.ReadInt32();
+                int objectSaveType = reader.ReadInt32();
+                objectIdToSaveType[dataAttr] = objectSaveType;
             }
 
-            return new ObjectModuleAsset(version: version);
+            return new ObjectModuleAsset(version: version, objectIdToSaveType: objectIdToSaveType);
         }
     }
 }
\ No newline at end of file