# isSubScene

> Whether this scene is a subscene.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.SceneManagement](/engine/6000.5/script-reference/unityengine/scenemanagement.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public bool isSubScene { get; set; }
```

### Remarks

Subscenes are a concept from Unity's Entity Component System (ECS), used to store ECS entities. To use the ECS, you must install the [Entities package](https://docs.unity3d.com/Packages/com.unity.entities@latest/index.html). If you are not using the ECS, this property is always false.

Additional Resources: [Subscenes overview](https://docs.unity3d.com/Packages/com.unity.entities@latest/index.html?subfolder=/manual/conversion-subscenes.html)