> For the complete documentation index, see [llms.txt](https://dotsnet.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dotsnet.gitbook.io/docs/user-manual/unity.physics-support.md).

# Unity.Physics Support

**DOTSNET** integrates perfectly with Unity.Physics, but you need to update your systems in just the right order.

* **DOTSNET** comes with a safe `ApplyPhysicsGroup`. Every system that is updated in that group via `[UpdateInGroup(typeof(ApplyPhysicsGroup))]` is safe to apply physics.
* Both our `ServerActiveSimulationSystemGroup` and `ClientConnectedSimulationSystemGroup` are part of `ApplyPhysicsGroup` automatically, so you don’t need to worry about anything if your systems update in those groups.