A minimalistic Minecraft launcher for Windows and Linux written in Rust with the iced framework.

• Website (+ Download): https://mrmayman.github.io/quantumlauncher

• Discord: https://discord.gg/bWqRaSXar5

• Lightweight and responsive. No more minute-long loading screens, no more laggy buttons
• Automatically manages Java installations
• Isolate your different game versions with instances!
• Install fabric, forge or optifine with ease
• Build in mod store to download your favorite mods

• You can download the stable version from the website linked above, or from the Releases
• Or, you can compile the launcher to get the latest experimental version (with potentially broken and untested features).
• To compile the launcher:

git clone https://github.com/Mrmayman/quantum-launcher.git
cd quantum-launcher
cargo run --release

You can omit the --release flag for faster compile times, but slightly worse performance and MUCH larger build file size.

• On Windows, the launcher files are at C:/Users/YOUR_USERNAME/AppData/Roaming/QuantumLauncher/.
• You probably won't see the AppData folder. Press Windows + R and paste this path, and hit enter.
• On Linux, the launcher files are at ~/.config/QuantumLauncher/. (~ refers to your home directory).
• Instances located at QuantumLauncher/instances/YOUR_INSTANCE/
• .minecraft located at YOUR_INSTANCE/.minecraft/.

• Installer for NeoForge, Quilt.
• A mod updater integrated with the mod store and manager.
• Integration with Omniarchive, special support for old and rare Minecraft versions (with fixes for skins/sounds)
• A local server hosting system (without port forwarding).
• macOS support.

A lot of this launcher's design, including the code for creating and launching the game, and installing forge, is inspired by https://github.com/alexivkin/minecraft-launcher/.

Nearly all of this launcher is licensed under the GNU General Public License v3.

• However, the file in assets/ClientInstaller.java (required for installing forge) is licensed under the Apache 2.0 license. It's taken from the above Minecraft launcher.
• Additionally the .github/workflows/build.yml file is licensed under Apache 2.0.

If you pirate the game, it's at your own risk. I am not responsible for any issues caused. I recommend that you buy the game, but if you don't have the means, feel free to use this launcher. If anyone has any issues/complaints, just open an issue in the repo.