Redream is an emulator of the latest SEGA console, the legendary Dreamcast. OnWorks Pear OS online, a MAC OS emulator with an online ease-of-use distribution that has a custom user interface with a Mac OS X-style dockbar, and out-of-the-box support for many popular multimedia codecs vMac is an open source MAC OS emulator for a number of Operating Systems such as Windows, Linux-Unix, NeXTSTEP, OS/2, DOS, etc. For each platform, we offer a stable and development release(s). Boots (but crashes in game) Mario Odyssey due to some missing instructions. The next MAME release (or now, if you grab the source from GitHub) will work 100% with both Metal and OpenGL BGFX backends on Catalina and Big Sur.
