diff --git a/Assets/MagnetismHeroes/Editor/PlaygroundRestoreGeometryAssets.cs b/Assets/MagnetismHeroes/Editor/PlaygroundRestoreGeometryAssets.cs
index dc9c988..8830b9a 100644
--- a/Assets/MagnetismHeroes/Editor/PlaygroundRestoreGeometryAssets.cs
+++ b/Assets/MagnetismHeroes/Editor/PlaygroundRestoreGeometryAssets.cs
@@ -12,6 +12,25 @@ namespace MagnetismHeroes.Editor
     public static class PlaygroundRestoreGeometryAssets
     {
         public const string CachePath = "Assets/MagnetismHeroes/UnityRuntime/Bootstrap/PlaygroundRestoreGeometry.asset";
+        public static void BindGameApp()
+        {
+            var cache = AssetDatabase.LoadAssetAtPath<PlaygroundRestoreGeometry>(CachePath);
+            if (cache == null) throw new InvalidOperationException("Restore geometry must exist before binding the game prefab.");
+            const string path = "Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab";
+            var prefab = PrefabUtility.LoadPrefabContents(path);
+            try
+            {
+                var app = prefab.GetComponent<GameApp>();
+                var data = new SerializedObject(app);
+                var reference = data.FindProperty("_restoreGeometry");
+                if (reference.objectReferenceValue == cache) return;
+                Undo.RecordObject(app, "Bind playground restore geometry");
+                reference.objectReferenceValue = cache; data.ApplyModifiedPropertiesWithoutUndo();
+                EditorUtility.SetDirty(app); PrefabUtility.SaveAsPrefabAsset(prefab, path);
+                Debug.Log("Bound the existing read-only restore geometry to the game prefab.");
+            }
+            finally { PrefabUtility.UnloadPrefabContents(prefab); }
+        }
         public static void CreateCache()
         {
             if (AssetDatabase.LoadMainAssetAtPath(CachePath) != null) throw new InvalidOperationException("Restore geometry already exists; verify before replacing it.");
diff --git a/Assets/MagnetismHeroes/Tests/PlayMode/DragCameraPlayTests.cs b/Assets/MagnetismHeroes/Tests/PlayMode/DragCameraPlayTests.cs
index 3c9ec7b..8c73096 100644
--- a/Assets/MagnetismHeroes/Tests/PlayMode/DragCameraPlayTests.cs
+++ b/Assets/MagnetismHeroes/Tests/PlayMode/DragCameraPlayTests.cs
@@ -29,8 +29,6 @@ namespace MagnetismHeroes.Tests
             foreach (var camera in Object.FindObjectsByType<Camera>(FindObjectsSortMode.None)) camera.enabled = false;
             _app = Object.Instantiate(AssetDatabase.LoadAssetAtPath<GameObject>("Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab")).GetComponent<GameApp>();
             _store = new MemoryStore(); _app.Initialize(_store); _app.StartStage(6); _app.Voice.Clear();
-            _app.Presenter.BindEnvironment(_app.Environment);
-            _app.Orbit.BindEnvironment(_app.Environment);
             _disabledScenery.Clear();
             foreach (var collider in _app.Environment.GetComponentsInChildren<Collider>())
                 if (!collider.isTrigger && !collider.name.Contains("Clearing") && collider.enabled) { _disabledScenery.Add(collider); collider.enabled = false; }
diff --git a/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundResumePlayTests.cs b/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundResumePlayTests.cs
index 9c799e5..168ec7b 100644
--- a/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundResumePlayTests.cs
+++ b/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundResumePlayTests.cs
@@ -42,12 +42,10 @@ namespace MagnetismHeroes.Tests
             _app = Object.Instantiate(AssetDatabase.LoadAssetAtPath<GameObject>("Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab")).GetComponent<GameApp>();
             _store = new Store { Save = new ProgressSave { completedStageIds = Enumerable.Range(1, 30).ToArray(), seenTutorialIds = new[] { "merge", "split" } } };
             _app.Initialize(_store);
-            _app.Presenter.BindEnvironment(_app.Environment);
-            _app.BindRestoreGeometry(AssetDatabase.LoadAssetAtPath<PlaygroundRestoreGeometry>("Assets/MagnetismHeroes/UnityRuntime/Bootstrap/PlaygroundRestoreGeometry.asset"));
             yield return null;
         }
         [UnityTearDown] public IEnumerator Teardown() { foreach (var fixture in _fixtures) Object.Destroy(fixture); _fixtures.Clear(); Object.Destroy(_app.gameObject); yield return null; }
-        private void Reload() { _app.Initialize(_store); _app.Presenter.BindEnvironment(_app.Environment); }
+        private void Reload() { _app.Initialize(_store); }
         private TMP_Text Text(string field) => (TMP_Text)new SerializedObject(_app).FindProperty(field).objectReferenceValue;
         private BoxCollider Box(Vector3 center, Vector3 size)
         {
diff --git a/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundSafetyPlayTests.cs b/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundSafetyPlayTests.cs
index 57bcb86..33bc995 100644
--- a/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundSafetyPlayTests.cs
+++ b/Assets/MagnetismHeroes/Tests/PlayMode/PlaygroundSafetyPlayTests.cs
@@ -31,8 +31,6 @@ namespace MagnetismHeroes.Tests
             foreach (var camera in Object.FindObjectsByType<Camera>(FindObjectsSortMode.None)) camera.enabled = false;
             _app = Object.Instantiate(AssetDatabase.LoadAssetAtPath<GameObject>("Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab")).GetComponent<GameApp>();
             _store = new MemoryStore(); _app.Initialize(_store); _app.StartStage(6); _app.Voice.Clear();
-            // Explicit test wiring until the single GameApp writer connects this production reference.
-            _app.Presenter.BindEnvironment(_app.Environment);
             // Keep the real clearing; isolate movement cases from the unrelated authored props.
             foreach (var collider in _app.Environment.GetComponentsInChildren<Collider>())
                 if (!collider.isTrigger && !collider.name.Contains("Clearing")) collider.enabled = false;
diff --git a/Assets/MagnetismHeroes/UnityRuntime/Bootstrap/GameApp.cs b/Assets/MagnetismHeroes/UnityRuntime/Bootstrap/GameApp.cs
index acf9353..1037caf 100644
--- a/Assets/MagnetismHeroes/UnityRuntime/Bootstrap/GameApp.cs
+++ b/Assets/MagnetismHeroes/UnityRuntime/Bootstrap/GameApp.cs
@@ -86,6 +86,8 @@ namespace MagnetismHeroes.UnityRuntime.Bootstrap
         }
         public void Initialize(IProgressStore store)
         {
+            _presenter.BindEnvironment(_environment);
+            _orbit.BindEnvironment(_environment);
             Session = new GameSession(_stages.Select(stage => stage.ToDefinition()), store);
             Session.SaveFinished += ShowSaveResult;
             _saveNotice.text = Session.LastSaveError == null ? "" : Session.LastSaveError.StartsWith("Recovered", StringComparison.Ordinal)
diff --git a/Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab b/Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab
index 91ed6c4..ce79d0b 100644
--- a/Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab
+++ b/Assets/MagnetismHeroes/UnityRuntime/Presentation/Prefabs/GameApp.prefab
@@ -8509,6 +8509,7 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: c76b84d0084f787458ed6a2d3cff26cf, type: 3}
   m_Name: 
   m_EditorClassIdentifier: MagnetismHeroes.UnityRuntime::MagnetismHeroes.UnityRuntime.Presentation.BoardEnvironment
+  _collisionTolerance: 0.001
 --- !u!1 &5310382666504661114
 GameObject:
   m_ObjectHideFlags: 0
@@ -10935,6 +10936,7 @@ MonoBehaviour:
   _nextButton: {fileID: 3927298547665816229}
   _environment: {fileID: 1624884106493650387}
   _demonstration: {fileID: 7659519030918255868}
+  _restoreGeometry: {fileID: 11400000, guid: bbbd7c6c248fe414da209364fa007ca1, type: 2}
 --- !u!114 &5074812012251702751
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -10951,6 +10953,15 @@ MonoBehaviour:
   _minDistance: 3
   _maxDistance: 15
   _degreesPerPixel: 0.25
+  _minElevation: -89
+  _maxElevation: 89
+  _collisionMargin: 0.35
+  _assistSpeed: 6
+  _assistAngle: 90
+  _assistElevation: 30
+  _nearbyDistance: 5
+  _candidateHysteresis: 0.4
+  _screenMargin: 0.12
 --- !u!114 &4917121841105511015
 MonoBehaviour:
   m_ObjectHideFlags: 0