diff --git a/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring.meta b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring.meta
new file mode 100644
index 0000000000..71b9ad7095
--- /dev/null
+++ b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 217ac7615afa42947b7ace1964a300fc
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/IConvertGameObjectToSpatialOsEntity.cs b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/IConvertGameObjectToSpatialOsEntity.cs
new file mode 100644
index 0000000000..c20dc5da52
--- /dev/null
+++ b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/IConvertGameObjectToSpatialOsEntity.cs
@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+
+namespace Improbable.Gdk.Core.SceneAuthoring
+{
+    public interface IConvertGameObjectToSpatialOsEntity
+    {
+        List<ConvertedEntity> Convert();
+    }
+
+    public readonly struct ConvertedEntity
+    {
+        public readonly EntityId? EntityId;
+        public readonly EntityTemplate Template;
+
+        public ConvertedEntity(EntityId entityId, EntityTemplate template)
+        {
+            EntityId = entityId;
+            Template = template;
+        }
+
+        public ConvertedEntity(EntityTemplate template)
+        {
+            EntityId = null;
+            Template = template;
+        }
+    }
+}
diff --git a/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/IConvertGameObjectToSpatialOsEntity.cs.meta b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/IConvertGameObjectToSpatialOsEntity.cs.meta
new file mode 100644
index 0000000000..ba37cf8d2b
--- /dev/null
+++ b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/IConvertGameObjectToSpatialOsEntity.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: d8f2dbc8213c4193b024d560f563c92e
+timeCreated: 1598525989
\ No newline at end of file
diff --git a/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/ISpatialOsAuthoringComponent.cs b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/ISpatialOsAuthoringComponent.cs
new file mode 100644
index 0000000000..bd9dec3c50
--- /dev/null
+++ b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/ISpatialOsAuthoringComponent.cs
@@ -0,0 +1,7 @@
+namespace Improbable.Gdk.Core.SceneAuthoring
+{
+    public interface ISpatialOsAuthoringComponent
+    {
+        void WriteTo(EntityTemplate template);
+    }
+}
diff --git a/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/ISpatialOsAuthoringComponent.cs.meta b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/ISpatialOsAuthoringComponent.cs.meta
new file mode 100644
index 0000000000..21fa913bf1
--- /dev/null
+++ b/workers/unity/Packages/io.improbable.gdk.core/SceneAuthoring/ISpatialOsAuthoringComponent.cs.meta
@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: a2d0af876a0e4e7898a69124eab1b5c3
+timeCreated: 1598525963
\ No newline at end of file