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openMSX vs Retro Virtual Machine: catalog facts
openMSX	Retro Virtual Machine
Free Free and open source.	Free Downloadable from the official site; no price is listed.
Windows, macOS, Linux	Windows, macOS, Linux
Accuracy-focused MSX emulation Built-in GUI with a capable debugger	Covers several 8-bit computers and consoles in one program PAL and NTSC models with correct aspect ratio
Android build is old and no longer current Needs MSX system ROMs for many machines	Releases are infrequent Limited to 8-bit era systems
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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