> For the complete documentation index, see [llms.txt](https://www.xrdev.app/mixed-reality-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.xrdev.app/mixed-reality-docs/lessons/lesson1/project/how-to-add-mixed-reality-toolkit-mrtk-to-a-project.md).

# How to add Mixed Reality Toolkit(MRTK) to a project?

If you are using HoloLens Seed project, you do not need to follow this step. **Seed project already comes with MRTK**. Still, it's good to know how to import the MRTK assets for your future projects. 

First, you need to download MRTK by going to their github page: [aka.ms/MRTKGithub](https://aka.ms/MRTKGithub) and navigating to **releases tab**. Scroll down to **Assets** section and download the tools:

* Examples
* Extensions
* Foundation 
* Tools

![Download MRTK Releases.](/files/-M2_o8CsTkTCkE283glE)

## Add MRTK assets into your project

In your Unity project, select **Assets tab** and select **Import Package > Custom Package** from the drop down.

Navigate to MRTK downloaded folders to select and import them into your project. 

Once you have MRTK assets imported, a new tab called Mixed Reality Toolkit will appear in your Unity editor. Navigate to new tab and select **Add Scene and Configure** from the dropdown menu. In your Scene Hierarchy, a new **MixedRealityToolkit** and **MixedRealityPlayspace** dropdowns will appear. 

![](/files/-M2_v62MXl5hnOcYB0xb)

MixedRealityPlayspace now includes your **Main Camera** and the camera is configured for Mixed Reality applications. Camera background is black to render transparent and **MixedRealityInputModule**, **EventSystem**, **GazeProvider** components are now added to your camera. 

![](/files/-M2_xV_ZF4qUbLQn7_KP)

{% hint style="info" %}
You can create a new scene to compare the camera settings that has changed by MRTK.
{% endhint %}

* You might be prompted to select a **configuration**. You can choose the **default MRTK configuration** or if you are developing for an HoloLens device, you can choose the configuration for the appropriate version.


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