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Ymir vs Mednafen: catalog facts
Ymir	Mednafen
Free The open-source emulator is available without a license fee.	Free Free and open source under the GPL.
Windows, macOS, Linux	Windows, macOS, Linux, Command line
High Saturn compatibility with a modern, usable interface Save states and debugging tools that older Saturn emulators lack	One accurate emulator covering a long list of systems Saturn and PC Engine emulation are among the most accurate available
Young project, so behaviour changes between releases Saturn emulation is demanding on CPU	Command-line driven with no real graphical interface Configuration is a text file with many options
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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