Quantum Launcher (1.21.7, 1.20.1) is a launcher for Minecraft written in the Rust programming language with the iced framework. It is designed to be lightweight, fast, and easy to use, focusing solely on optimizing performance, simplicity, and mod support. This launcher stands out for its offline gameplay feature, meaning you can play without needing an account.

Features:

  • QuantumLauncher uses minimal CPU and RAM, lighter than even the Windows Task Manager.
  • Allows easy searching and downloading of mods.
  • Includes a mod manager to enable/disable or upload mods.
  • Enables playing older, rare Minecraft versions like Indev, for example, from Omniarchive, which are not available in the official version list.
  • Does not require an official Minecraft account, suitable for players wanting a free experience.
  • Runs on Windows, macOS, and Linux, with support for older systems (such as 32-bit Windows for very old computers).
  • Very easy to install—just download, extract, and run.
  • Players can create instances (separate game versions) and play immediately.
  • Supports automatic installation of Java, Fabric, Forge, NeoForge, and Quilt for modded gameplay.

Screenshots:

Requires:

Java

Java Runtime Environment

Quantum Launcher (1.21.7, 1.20.1) Download Links

For All Versions from Minecraft 1.7.10 to Minecraft 1.21.7, 1.21.5, 1.21.4, 1.21.1, 1.20.1

Windows

Windows x86_64 version (Unzip file): Download from Server 1 – Download from Server 2

Windows aarch64 version (Unzip file): Download from Server 1 – Download from Server 2

Windows i686 – 32bit version (Unzip file): Download from Server 1 – Download from Server 2

MAC OS

MAC x86_64 version (Unzip file): Download from Server 1 – Download from Server 2

MAC aarch64 version (Unzip file): Download from Server 1 – Download from Server 2

Linux

Linux x86_64 version (Unzip file): Download from Server 1 – Download from Server 2

Linux aarch64 version (Unzip file): Download from Server 1 – Download from Server 2

Flatpak

Flatpak x86_64 version (Unzip file): Download from Server 1 – Download from Server 2

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