In order for this to work, you MUST have Java 16 (or higher) installed!

Once you have downloaded and placed Geyser into its own folder, you will need to create a startup script; similar to how you’d run a Bukkit/Spigot/Paper server.

Windows

  • Create a new text file in the same location as the Geyser-Standalone jar file, and call it run.bat. Open this with a text editor (preferably Notepad++), and insert the text below: 
    @echo off
java -Xms1024M -jar Geyser-Standalone.jar
pause
  • Double-click the run.bat, and Geyser should start up. Geyser will generate all the needed files.

macOS

  • Create a text file called run.command, and open it with a text editor such as TextEdit or TextMate. Type the text below into the run.command file: 
    #!/bin/bash 
cd "$( dirname "$0" )" 
java -Xms1024M -jar Geyser-Standalone.jar
  • Open Terminal, and type in chmod a+x (Do NOT press return!), and drag your run.command file into the Terminal.
  • Press return on your keyboard, and Geyser will start up. Geyser will generate all the needed files.

Linux

  • Create a file called run.sh, and open it with a text editor. Type the text below into your run.sh file: 
    #!/bin/sh 
cd "$( dirname "$0" )" 
java -Xms1024M -jar Geyser-Standalone.jar
  • In your default terminal application, make the file executable by running chmod +x ~(dir)/run.sh where dir is the name of the folder Geyser is in, or by changing the file permissions;
  • Open your default terminal application, and type ./run.sh to run Geyser. Geyser will generate all the needed files.