PollyMC-Continued

A revival of PollyMC, a free and open-source Minecraft launcher based on Prism Launcher.

What's Different

PollyMC-Continued lets you play Minecraft without needing a Microsoft account. You can add offline accounts directly and launch the full game with no restrictions.

Features

• Offline accounts — add and play without Microsoft login
• No demo mode — offline accounts launch the full game
• Custom skins — save and load skins locally for offline accounts
• Offline skin agent — Java agent that intercepts skin API to serve local skins
• Setup wizard — offers offline account option on first launch
• NSIS installer — one-click install with Start Menu/Desktop shortcuts
• Upgrade support — detects existing installation and offers to upgrade

Download

Grab the latest release from the Releases page.

Building

Prerequisites (Windows)

• MSYS2 with MinGW-w64
• Qt 6 (mingw-w64-x86_64-qt6-base, mingw-w64-x86_64-qt6-svg, etc.)
• CMake + Ninja
• Java JDK (for building launcher JARs)
• NSIS (for creating the setup installer)

Build Steps

# Configure with MinGW runtime paths
cmake -G Ninja \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_PREFIX_PATH=/c/msys64/mingw64 \
  -DCMAKE_SYSTEM_LIBRARY_PATH=/c/msys64/mingw64/bin \
  -DCMAKE_CXX_FLAGS="-Wno-error" \
  -DCMAKE_C_FLAGS="-Wno-error" \
  .

# Build
cmake --build . -j4 --target PollyMC

# Install to build directory (deploys Qt + MinGW runtime DLLs)
cmake --install . --prefix C:/pollymc_build

# Create setup installer
"/c/Program Files (x86)/NSIS/makensis.exe" pollymc_installer.nsi

macOS

Install the dependencies:

brew install cmake ninja qt extra-cmake-modules cmark qrencode libarchive tomlplusplus
brew install --cask temurin@17

Build, test and package the native version for the current Mac:

bash packaging/macos/build-local.sh

The script uses the current macOS major version as the default deployment target, avoiding invalid or incompatible local bundles built against Homebrew libraries. Override it when needed:

MACOSX_DEPLOYMENT_TARGET=15.0 bash packaging/macos/build-local.sh

The resulting dist-macos directory contains a ready-to-run PollyMC.app, ZIP, DMG and SHA-256 checksums. The locally generated DMG file receives the same Finder icon as the application. The DMG also contains PollyMC.app and an Applications shortcut for normal drag-and-drop installation.

The custom icon attached to the local DMG file is stored in a macOS resource fork. Release hosting services may discard that metadata, while the icon of the mounted DMG volume remains embedded in the disk image.

Credits

• Prism Launcher — the base launcher
• PolyMC — original fork
• MultiMC — the original launcher

License

GPL-3.0. See LICENSE for details.