# VariableRateSimulationSystemGroup()

> Construct a new VariableRateSimulationSystemGroup object

## Definition

* **Type:** Constructor
* **Namespace:** [Unity.Entities](/engine/7000.0/script-reference/unity/entities.md)
* **Assembly:** UnityEngine.EntitiesModule

```csharp
public VariableRateSimulationSystemGroup()
```