CyberFlameGO / olauncher

A modified version of the old Minecraft Launcher supporting Microsoft authentication and more.

olauncher

The old launcher we all know and love with the quality-of-life features of the new launcher. This aims to support java 8 through modern java.

How to use

1. Go to the latest release
2. Download the olauncher-xxx-redist.jar file
3. Run it

Features

• Microsoft authentication
• Bundled JVMs
  • Automatically downloads the appropriate JVM for all minecraft versions
  • You just need a runtime to open the actual launcher
  • You can still provide your own JVMs
• Update checking

Planned Features

• Add skin/cape management

Minor TODOs

• Support demo users (if they have a Microsoft account but no Minecraft profile)

How to build from source

The commands must be run in the following order to build from source:

• decompile.sh
  • Downloads original jar and decompiles it
• init.sh
  • Turns decompiled sources into a git repository
• applyPatches.sh
  • Applies OLauncher patches to the decompiled sources
• mvn clean package
  • Compiles the patched launcher
• genredist.sh (optional)
  • Make sure you've run git submodule update --init as this script uses the AutoOL submodule.
  • Generates the redistributable JAR - Do not distribute the JARs in olauncher/target!