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

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