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M64Py vs Parallel Launcher: catalog facts
M64Py	Parallel Launcher
Free Free and open source under the GPL-3.0.	Free Free to download, with source code published on GitLab.
Windows, macOS, Linux	Windows, macOS, Linux
Graphical setup for Mupen64Plus plugins and input ROM list with preview images and cheat support	Much simpler controller setup than RetroArch Automatic ROM loading and settings
Depends on the Mupen64Plus library for emulation No games included	Nintendo 64 only Mac build is Intel x86_64, though it loads an ARM emulator core on ARM machines
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.