# defaultWorld

> Get the default world created at start-up. This world cannot be destroyed as it is permanently owned by Unity itself. See PhysicsWorld.SetOwner and _isOwned.

## Definition

* **Type:** Property
* **Namespace:** [Unity.U2D.Physics](/engine/6000.6/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
public static PhysicsWorld defaultWorld { get; }
```