Downloading the Client
To download the Kraken client:
- Sign in to Kraken Plugins with discord
- Visit the "Download Client" page
- Select your operating system either Windows or Mac
- Click "Download Client"

Installation
The following sections will walk you through installing the client on your computer so you can launch Old School RuneScape and use the Kraken plugins.
Windows
Windows has three ways you can install the client:
.exe(easiest and recommended).jar(backup in case of issues)Manual Install(if all else goes wrong)
The following sections detail each installation method.
Windows .exe (recommended method)
If you are on Windows, unzip the downloaded file from the Kraken Plugins download page and double-click the executable (.exe) file that was downloaded and run through the installation process to install the client to your RuneLite directory. The installer will take care of setting everything up for you, and Kraken plugins will now load alongside RuneLite.

Note: If you run into issues installing via the
.exetry running from the command line (PowerShell) and adding the--l4j-debugoption to show debug logs for the executable. I.e..\KrakenInstaller.exe --l4j-debugandcat launc4j.logto see system information relating to running the executable.
You can launch RuneLite as you normally would through either the Jagex Launcher or Desktop Icon. You should see the small green Kraken logo show up in your sidebar indicating your plugins are loaded and ready to be used (after logging into the client with discord and entering your license keys).

Windows Jar File (backup method)
If you encounter issues with the .exe installation method. You can install it via the JAR file by simply double-clicking on it. The JAR file is executable so you can run it the same way as you would the .exe file to install the Kraken client.
You should see the following dialog if the installation succeeded:

Windows Manual
The manual method of installation is the most complex, however, if you cannot install any other way this will work.
- Start by downloading the JAR file directly from https://minio.kraken-plugins.com/kraken-bootstrap-static/KrakenSetup.jar
- Open the local RuneLite directory on your machine by hitting the Windows key and typing: "Run". Enter the text:
%localappdata%/RuneLiteand hit enter

- Copy the
KrakenSetup.jarfile from your downloads folder to the%localappdata%/RuneLitefolder. It should look like this:

- Within the
%localappdata%/RuneLitefolder open up theconfig.jsonfile in your text editor (like notepad) and replace it with the following:
{
"classPath": [
"RuneLite.jar",
"KrakenSetup.jar"
],
"mainClass": "com.kraken.launcher.Launcher",
"vmArgs": [
"-javaagent:KrakenSetup.jar",
"-XX:+DisableAttachMechanism",
"-Drunelite.launcher.nojvm\u003dtrue",
"-Drunelite.launcher.blacklistedDlls\u003dRTSSHooks.dll,RTSSHooks64.dll,NahimicOSD.dll,NahimicMSIOSD.dll,Nahimic2OSD.dll,Nahimic2DevProps.dll,k_fps32.dll,k_fps64.dll,SS2DevProps.dll,SS2OSD.dll,GTIII-OSD64-GL.dll,GTIII-OSD64-VK.dll,GTIII-OSD64.dll",
"-Xmx768m",
"-Xss2m",
"-XX:CompileThreshold\u003d1500"
]
}- Save the
config.jsonfile and close.
⚠️ Note: If you have previously modified your config.json file to change JVM properties or the RuneLite classpath you will need to merge the Kraken changes in with your changes. The two core parts are the
KrakenSetup.jarfile being on the classpath andcom.kraken.launcher.Launcherbeing the main class.
Mac
- Download the
KrakenSetup.jarfile from the website - Double-click the JAR file to start the launcher installation process
- Sometimes macOS security may warn you about unidentified developer apps
- Open
System Preferences > Security & Privacy > General Tab - Click "Open Anyway" or "Allow Anyway"
- Open
- The launcher will prompt you for your MacOS password or TouchID.
- This is required because during Krakens installation it modifies
RuneLite.app's bundle (config.jsonand addingKrakenSetup.jar) therefore, invalidating the code signature causing GateKeeper to immediately mark RuneLite as corrupted and "not runnable". - The command being run (and launcher) is fully open source and you can view it here if you have any questions or concerns.
- This is required because during Krakens installation it modifies
- Your Kraken launcher will be installed, and you should see a popup message

Launch RuneLite as normal through your Applications or the Jagex Launcher
Next Steps
See our configuration document for information on how to sign in to the client, load, and configure your plugins!