Minecraft Java Edition

Minecraft: Java Edition

MultiMC Launcher / Prism Launcher / Fjord Launcher / any other fork of MultiMC
- Native & Flatpak versions are supported
A Minecraft Account (obviously)

Launcher Executable
- Examples:
  - Prism Launcher:
    - Flatpak: org.prismlauncher.PrismLauncher
    - Native: prismlauncher
Instances Directory
- Examples:
  - Prism Launcher:
    - Flatpak: /home/{user}/.var/app/org.prismlauncher.PrismLauncher/data/PrismLauncher/instances
    - Native: /home/{user}/.local/share/PrismLauncher/instances

Create a new instance in MultiMC:
- Pick Fabric Loader for Minecraft 1.20.1 or higher
Install those mods:
Launch and configure the instance:
- Press F11 to position the window
- In Midnight Controls settings set Unfocused Input and Virtual Mouse
- When in-game (in a world) press F3+P to disable pause on lost focus
- Stop the instance
Duplicate the instance:
- Right click the instance -> Copy Instance
- In the dialog, make sure that "Copy Settings" and "Copy Mods" (or similar) are checked
- Add 2 to the name of the duplicate/second instance
  - For example: if the first instance was named Splitscreen 1.21 then this one needs to be named Splitscreen 1.21 2
Launch the second instance:
- Start the second instance
- Press F11 to move it to the right side of the screen.
- Stop the instance
Add another Minecraft account (if needed):
- In MultiMC: Settings -> Accounts
- Add the second account:
  - Microsoft if you're planning playing on multiplayer servers
  - Otherwise offline account will be enough
Run the game with Cuberry:
- Launch Cuberry and select your first splitscreen instance.
- Make sure splitscreen mode is enabled and you picked a different account for the second instance.
Set up controllers and play:
- In Midnight Controls settings, assign each game window to a different controller.
- Enjoy splitscreen Minecraft on one PC!