> For the complete documentation index, see [llms.txt](https://docs.coherence.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coherence.io/0.4.14/overview/requirements.md).

# Requirements

### Game Engine Support

**coherence** currently supports Unity. For custom engine integration,[ please contact our developer relations team](mailto:devrel@coherence.io). For updates regarding Unreal Engine support, please check the [Unreal Engine support](/0.4.14/additional-information/unreal-engine-support.md) page.

### Unity Requirements

* Unity 2020.1.9f1 or later.
* A Windows, Linux or Mac system.

{% hint style="info" %}
The current version of **coherence** uses the Unity Entities package. Unity [recently announced ](https://forum.unity.com/threads/notice-on-dots-compatibility-with-unity-2021-1.1091800/#post-7029421)that they will not support this package in Unity 2021 for a while. This means that the current recommended Unity version for using **coherence** is Unity 2020 LTS. This is only temporary as we have been working on removing the reliance on Entities internally.
{% endhint %}