> For the complete documentation index, see [llms.txt](https://gamelauncher.gitbook.io/documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gamelauncher.gitbook.io/documentation/creating-app-version/1-and-2.-build-your-app.md).

# 1 & 2. Build your App

{% hint style="danger" %}
**This tutorial assumes you correctly installed the Game Launcher in your server.**

If you haven't done so, go here: [**Installation**](/documentation/getting-started/installation.md)
{% endhint %}

1. Build your game or app in your preferred engine *(or Copy your game build files)*

![Example building a game in Unity](/files/X6yeuhyH0e4yc5WCVZ0q)

2. In the [Patch Manager](/documentation/game-launcher/patch-manager-app.md) or Unity Manager

**Make sure that you are in&#x20;***<mark style="color:green;">**App Workspace**</mark>*, \
otherwise click **'Switch to App Workspace'** in the topside

3. Assign the [**HOST URL**](#user-content-fn-1)[^1] **like the** [***LauncherConfig.cs***](#user-content-fn-2)[^2]

<figure><img src="/files/iqFRDurLW3xmEy9eZ8YJ" alt=""><figcaption><p>Assigning the HOST URL (must be the same like the LauncherConfig.cs)</p></figcaption></figure>

3. Click on **Open** **App folder** -> **Paste** your build files&#x20;

<figure><img src="/files/sqbOKLzE5hewpAEt0hA8" alt=""><figcaption></figcaption></figure>

Next step:

[**3. Create your patch**](/documentation/creating-app-version/3.-create-your-patch.md)

[^1]: Local must start with *file:///*

    Remote must start with *https\://* or *http\://*

[^2]: This file is located in Visual Studio GameLauncher Project