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gopher64 vs Rosalie's Mupen GUI: catalog facts
gopher64	Rosalie's Mupen GUI
Free The open-source software is available without a license fee. Hosting, hardware and…	Free Free and open source.
Windows, macOS, Linux, Android	Windows, Linux
Includes save states, upscaling and network play.	Simple interface over the Mupen64Plus core Netplay support
Compatibility depends on the individual game.	No macOS build mentioned Netplay needs port forwarding or a server
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 23, 2026

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