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How to use the ATLauncher

This tutorial will walk you through the process of using the ATLancher including installing a modpack and going over basic settings. 

How to install a modpack on the ATLauncher 

  1. Download and install the ATLauncher. 

  2. Once installed, launch the ATLauncher.

  3. Before you proceed further, you need to add your Minecraft account from the “Accounts” tab on the right.

  4. Once you have your account added, click on packs to show the available modpacks for installation. The ATLauncher is able to install its own modpaks but also packs from other launchers such as Curseforge. You can also search for the modpack in the upper right corner.

  5. Once you find the modpack that you’d like to install, click the install button. You will be prompted to set a name and select a version. Usually this is just left as their default values. 

  6. After installation you can click on the “Instances” tab to see the recently installed and past installed modpacks where you can just click play on the modpack you want to start.

How to find a modpack on the ATLauncher

  1. Launch the ATLauncher. 

  2. Click on “Packs”.

  3. From here you are able to search for a modpack that you already know about across ATLauncher, Curseforge, FTB, Modrinth or Technic in the top right corner or you can scroll through the lists for each network by selecting the tab on the left. 

Updating an already installed modpack

If your modpack needs an update you will see an update button appear. 

Clicking on Update opens a second window and selects the latest version automatically. Click on the update button to start the update process. Once it’s completed you can start your game as normal.

Settings

How to change RAM allocation on the ATLauncher

  1. Launch the ATLauncher

  2. Click Settings.

  3. Click on Java/Minecraft and Maximum Memory/RAM.

  4. By default, it should be set to 4GB/4096. Every 1GB is 1024, so if you wanted 6GB of RAM allocated to you would use 6144. You can also click the up/down arrows to increase or decrease ram allocated in 512MB increments. 

    Note: that you cannot allocate more RAM than is installed on your computer or the game may fail to start. 

  5. Click Save.

Need Help?

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