# Underscore

> Adds an underscore and a number to the name of an instantiated or duplicated GameObject ("Prefab_1").

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor](/engine/6000.5/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
Underscore = 2
```

### Remarks

When a GameObject is duplicated or instantiated, Unity copies the original GameObject's name and adds an underscore and a number to it, for example, "Prefab\_1".

Additional Resources: [EditorSettings.gameObjectNamingScheme](/engine/6000.5/script-reference/unityeditor/editorsettings/gameobjectnamingscheme.md), [EditorSettings.gameObjectNamingDigits](/engine/6000.5/script-reference/unityeditor/editorsettings/gameobjectnamingdigits.md).