# Sandbox.Rigidbody.ImpactDamage

```csharp
float ImpactDamage { get; set; }
```

The amount of damage this rigidbody deals to other objects when it collides at high speed.
If set to 0 or less, this will be calculated from the mass of the rigidbody.

Declared in [Sandbox.Rigidbody](/api/Sandbox.Rigidbody).
Assembly: `Sandbox.Engine`.