Now on to Unreal. 

In this example, we’ll use Unreal Engine’s multiplayer sample – Lyra.

To start, simply select the “Add to My Library” button.

The sample will appear within the Epic Games Launcher, under Unreal Engine’s tab, in the Fab Library section. Simply select “Create Project” for Lyra. Or open your own personal project here, if that is what you are using.

Here, we’ll choose the project name and location on the computer. Then select “Create” to initialize the project.

After some time, the project appears in our Unreal Library. Open it.

This is Lyra within Unreal Engine’s editor.

As to direct Unreal to which map should be used on the game server, we’ll head to “Project Settings”, then select “Maps & Modes” and finally select “ShooterGym” as the Server’s Default Map, like so. It may take a few seconds to load.  

Now, let’s configure the project for Linux dedicated servers.

First, open Edgegap’s Docker Extension for game servers.

Input your project’s name and the Edgegap Token. If you don’t have one from your account, select “Get Quick Start Token” which opens your browser to Edgegap’s dashboard if you are logged in. Simply copy the token within the pop-up.

Back in the extension, paste the token. The “Validate Token” button should appear, click on it to confirm its validity.

Automatically, your platform is selected, namely Unreal Engine.

Add your project to the extension by selecting the “browse” button and selecting the location of the project amongst your folders.

Once selected, click on the “Create Project” button as to begin the building your game server phase.

Automatically, the extension pre-fills the Unreal Engine version in use by your project.

Now, input your GitHub account’s username.

Then, paste your GitHub Personal Access Token generated earlier. It will automatically validate it if it is correct.

Regardless of your machine’s operating system, you will need to build your Linux server. To do so, we must disable Unreal Engine’s version compatibility check for dedicated servers and set IpNetDriver as the default driver or the fallback driver for replication networking.

Copy the code snipet from our documentation.

Then, head over to the engine’s default configuration file. Amongst your project, it should be found under the “Config” folder and named “DefaultEngine.ini”. Open the file using your preferred IDE.

Here, simply paste the full code snippet at the end of the file.

Next, we have to create a dedicated server target script by copying the <PROJECT>Editor.Target.cs file in the project’s  root folder and renaming the copy to <PROJECT>Server.Target.cs. Replace any references to word “Editor” with the word “Server” in your server target script. With Lyra we already have this target file, let's just add this code snippet to enable logs in shipping builds.

Concretely, this file should be found under your project’s “Source” folder, and here named “LyraServer.Target”. As you can see, there is no reference to the word “Editor”, only “Server”. We’re ready to paste the code snippet at the end of the file.

Get back to Edgegap’s Docker Extension as to validate the configurations were correctly inputted. Select the “Validate Configuration” button.

If you have properly completed this step, all three configurations should have a green tick mark.

This allows us to move to the game server build phase.

Here we can view or edit the “Dockerfile”, “dockerignore” and “StartServer.sh” file. While useful, we’ll keep everything to the default settings for this example.

Next is your Docker Build. This includes the image name and tag. Both of which we’ll keep to the default as well.

Let’s start building the project by selecting the “Build Project” button. As you can see, the process starts automatically.

Congrats, you’ve added dedicated game server to your game!