OpenMC

Windows · Mac · Linux

Freedom report

Three barsScore 6.5

OpenMC is ranked #48 of 74 in Minecraft launchers on Freedom251. It runs on Linux, macOS, Windows. There is a free plan.

OpenMC plans and pricing

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

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

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