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Tech riderRev. 12 Oct 2026

OpenMC

Ch 596.8of 74Minecraft Launchers
  1. 1Runs onLinux, Mac, Windows
  2. 2CostsFree plan
  3. 3Separate instancesYes
  4. 4Mod loader supportmultiple
4 lines stated Written from the maker's own pages: github.com
Visit site Alternatives
The OpenMC homepage

Overview

OpenMC is ranked #59 of 74 in Minecraft launchers on Specifiction. It runs on Linux, macOS, Windows. There is a free plan.

OpenMC plans and pricing

All plans
OpenMC Free No paid plans or usage limits stated github.com · 12 Oct 2026

Compared on Minecraft launchers

Separate instances
Yesgithub.com
Mod loader support
multiplegithub.com

Facts

Purpose
OpenMC is a third-party Minecraft launcher for managing multiple Minecraft installations.github.com · 12 Oct 2026
Mod loaders
The project says it supports several mod loaders.github.com · 12 Oct 2026
Modpacks
The project says it can download modpacks from several popular platforms.github.com · 12 Oct 2026
Technology
OpenMC is built primarily with Qt5 and C++.github.com · 12 Oct 2026
License
The repository states that OpenMC is licensed under Apache License 2.0.github.com · 12 Oct 2026
Portable use
The build instructions describe OpenMC as portable and say it should not be installed outside the user's home folder.github.com · 12 Oct 2026
Platforms
Build instructions are provided for Linux, Windows, and macOS.github.com · 12 Oct 2026
Windows build limitation
The Windows build instructions say the project will not compile using Microsoft build tools and recommend Qt Creator.github.com · 12 Oct 2026
Release availability
The GitHub releases page states that there are no releases.github.com · 12 Oct 2026
Project lineage
The repository identifies OpenMC as a fork of the MultiMC project maintained independently of the MultiMC team.github.com · 12 Oct 2026
Community development
The README says the project is community-created and features are community-driven.github.com · 12 Oct 2026
Development contributions
The README invites contributors to open an issue or fork the project and create a pull request.github.com · 12 Oct 2026

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Where it ranks on Specifiction

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Sources