minecraft-launcher

Changelog · Audits

an opinionated launcher - my based opinions

built for myself, If your its to your taste, help yourself.

What I changed vs upstream

	Stock launcher	This fork
Telemetry	Yes	none
News fetch on launch	Yes	none
UI	Ugly	Clean
Weak hardware support	lmao	optimized

Full diff in CHANGELOG.md. Per-endpoint network audit in docs/NETWORK_AUDIT.md.

What it does

Modrinth, CurseForge, FTB, ATLauncher, Technic instance imports
Fetches Java, no system install needed (hassle)
Portable: can launch from a usb stick for example
Offline mode: pick a username, play.
Pure black/white theme, no chrome accents

That's it. Same scope as Prism, just narrower defaults.

Download

Pre-built binaries for Linux, Windows, macOS:

→ Latest release

Linux:

tar xzf minecraft-launcher-linux-x64.tar.gz
cd minecraft-launcher
./bin/prismlauncher

Windows:

unzip minecraft-launcher-windows-x64.zip
cd minecraft-launcher
prismlauncher.exe

macOS (unsigned — right-click → Open → Open anyway):

unzip minecraft-launcher-macos-arm64.zip
cd minecraft-launcher
./prismlauncher.app/Contents/MacOS/prismlauncher

First launch: pick a username, done.

Trust

Don't take my word on the privacy stuff. Read the audits:

docs/NETWORK_AUDIT.md — every endpoint listed, telemetry verdict per call
docs/SETTINGS_AUDIT.md — default-value diffs vs upstream
docs/BLOAT_AUDIT.md — what got stripped, why

It's GPL-3.0. Source is right there.

Status

Personal project. I use it daily, that's the only QA. No support guarantees. Bugs happen. Use at your own risk.

PRs welcome but not promised to merge — this is opinionated by design.

License

GPL-3.0-only. Per-file copyright headers preserved.

Based on PrismLauncher (GPL-3.0), itself a fork of PolyMC and MultiMC.

Build from source

git clone https://github.com/s8n-ru/minecraft-launcher.git
cd minecraft-launcher

# Fedora 43
sudo dnf install cmake gcc-c++ ninja-build extra-cmake-modules \
    qt6-qtbase-devel qt6-qttools-devel qt6-qtsvg-devel qt6-qtnetworkauth-devel \
    libarchive-devel cmark-devel qrencode-devel tomlplusplus

# Ubuntu / Debian
sudo apt install cmake g++ ninja-build extra-cmake-modules \
    qt6-base-dev qt6-tools-dev qt6-svg-dev libqt6networkauth6-dev \
    libarchive-dev libcmark-dev libqrencode-dev libtomlplusplus-dev gamemode-dev libvulkan-dev

JAVA_HOME=/path/to/jdk-21 cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release
cmake --build build -j$(nproc)
./build/prismlauncher

CI builds via GitHub Actions for all 3 platforms on every tag.

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