Install a mod loader

minecraft-launcher-lib allows you to install a mod loader for Minecraft using the mod_loader module. Currently the following loader are supported:

• Forge

• NeoForge

• Fabric

• Quilt

To install a mod loader, minecraft-launcher-lib provides the mod loader module, which has a unified way of installing.

Fist you need to get the loader by it’s id. Valid ID’s are forge, neoforge, fabric and quilt.

In this exmaple, we want to install fabric. So let’s get fabric.

fabric =  minecraft_launcher_lib.mod_loader.get_mod_loader("fabric")

Now we can install fabric for version 1.21.

fabric.install("1.21", minecraft_directory)

You can also take a look at the complete example.