# 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 PhysicsWorld.isOwned.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine.LowLevelPhysics2D](/engine/6000.3/script-reference/unityengine/lowlevelphysics2d.md)
* **Assembly:** UnityEngine.Physics2DModule

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