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Tech riderRev. 22 Sept 2026

rmcl

Ch 397.0of 74Minecraft Launchers
  1. 1Runs onLinux, Mac, Windows
  2. 2Separate instancesYes
  3. 3Modpack importboth
  4. 4Mod loader supportmultiple
  5. 5Java runtime managementYes
  6. 6Built-in modpack catalogYes
6 lines stated Written from the maker's own pages: github.com
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The rmcl homepage

Overview

rmcl is ranked #39 of 74 in Minecraft launchers on Specifiction. It runs on Linux, macOS, Windows.

Compared on Minecraft launchers

Separate instances
Yesgithub.com
Modpack import
bothgithub.com
Mod loader support
multiplegithub.com
Java runtime management
Yesgithub.com
Built-in modpack catalog
Yesgithub.com

Facts

What it does
rmcl is a Minecraft launcher with a terminal user interface and command-line interface, written in Rust.github.com · 11 Oct 2026
Supported loaders
It supports Vanilla, Fabric, Forge, NeoForge, and Quilt; LiteLoader and Rift are marked unsupported.github.com · 11 Oct 2026
Modpacks
It can browse Modrinth and CurseForge modpacks and import Modrinth, CurseForge, and MultiMC/Prism archives.github.com · 11 Oct 2026
Accounts
It supports multiple Microsoft accounts and offline accounts.github.com · 11 Oct 2026
Authentication
Microsoft account authentication uses rmcl’s own client ID and Microsoft’s official services.github.com · 11 Oct 2026
Integrations
The README names Modrinth, CurseForge, Microsoft account authentication, and MultiMC/Prism archive formats.github.com · 11 Oct 2026
CurseForge limit
CurseForge access uses an API key, and setting CURSEFORGE_API_KEY to an empty or whitespace-only value disables it.github.com · 11 Oct 2026
Downloads
The latest release page lists builds for Apple Silicon and Intel macOS, x64 Windows, and ARM64 and x64 Linux.github.com · 11 Oct 2026
Installation
The README lists Homebrew, WinGet, Arch Linux packages, Nix, Cargo, and source builds as installation options.github.com · 11 Oct 2026
System requirements
Linux builds and Homebrew installations require the libxcb runtime package, and source builds require Rust and a JDK.github.com · 11 Oct 2026
Compatibility limit
Minecraft 1.12 and older currently fail to launch because rmcl does not pass -Djava.library.path for legacy version profiles.github.com · 11 Oct 2026
License
The project is licensed under GNU GPL version 3.0.github.com · 11 Oct 2026
Support and contributions
The README invites bug reports, feature requests, and contributions through GitHub.github.com · 11 Oct 2026
Maker
The maintainer profile identifies Consti Bauer as based in Bavaria, Germany, and says they are actively working on rmcl.github.com · 11 Oct 2026

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Where it ranks on Specifiction

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Sources