Extreme Launcher (1.21.5, 1.20.1) is an Open-Source Minecraft Launcher Offering: Management of Multiple Instances, Management of Accounts, Updating and instalation of Mods and much more… Extreme Launcher is designed to be the best Minecraft launcher, focusing on user freedom and free redistributability. It empowers you to manage multiple Minecraft instances, accounts, and mods with ease. Developed as a swift and lightweight alternative to slower launchers on the market. Experience a faster, more efficient way to manage your Minecraft adventures with Extreme Launcher.

Features:

Modpack Management

  • Simplify Modpack Installation and Updates
  • Install and launch modpacks effortlessly while keeping them organized.
  • With Extreme Launcher, there’s no need to manually install or update modpacks; the launcher handles these tasks for you, eliminating the necessity of multiple separate launchers.
  • Tired of searching for that one mod you need? Extreme Launcher enables you to download and update individual mods from sources like Modrinth and CurseForge, even if they’re outside of modpacks.
  • Create your own modpack in just one click with our innovative modpack system. Access a vast catalog of mods, maps, and resource packs, each with full descriptions and screenshots.
  • Our system checks the compatibility of each mod you install, helping you avoid errors and ensuring a smooth gaming experience.

Minecraft Instance Management

  • Effortless Handling of Multiple Game Versions
  • Extreme Launcher includes all available game versions from the developers, allowing you to install any version at any time.
  • Have your settings ever reset after launching an older version?
  • Accidentally corrupted a world by opening it in the wrong version?
  • Fed up with manually switching mods and installing mod loaders for different versions?
  • Extreme Launcher offers a solution. Each Minecraft instance has its own folder, complete with separate mods, resource packs, and configurations.
  • This isolation ensures that your settings remain intact and your worlds stay safe.

Lightweight & Customizable

  • Optimized Performance with Personalization Options
  • We are dedicated to continuously improving Extreme Launcher to provide an error-free Minecraft experience.
  • Unlike other launchers that include unnecessary embedded web browsers,
  • Extreme Launcher utilizes the Qt toolkit, requiring minimal system resources for optimal performance.
  • Customize your launcher to suit your preferences.
  • Extreme Launcher allows you to personalize the menu and supports custom themes, enabling you to tailor the look and feel to your liking.

Screenshots:

Requires:

Java

Java Runtime Environment

Extreme Launcher (1.21.5, 1.20.1) Download Links

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

Windows 10/11

Installer (Exe file): Download from Server 1 – Download from Server 2

Portable (Zip file): Download from Server 1 – Download from Server 2

Windows 10/11 ARM64

Installer – ARM64 (Exe file): Download from Server 1 – Download from Server 2

Portable – ARM64 (Zip file): Download from Server 1 – Download from Server 2

Linux

AppImage: Download from Server 1 – Download from Server 2

Portable (Tar.gz file): Download from Server 1

Portable – Qt5 (Tar.gz file): Download from Server 1

MacOS

Universal (Zip file): Download from Server 1 – Download from Server 2

Legacy (from High Sierra to Catalina) (Zip file): Download from Server 1 – Download from Server 2

Extreme Launcher Legacy (Windows only .NET based)

Download from Server 1 – Download from Server 2

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