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