https://www.pcjs.org/ is a similar project on the PC side.
The Internet Archive also has some collections: https://archive.org/details/classicpcgames and https://archive.org/details/softwarelibrary_msdos_games
The Internet Archive also has some collections: https://archive.org/details/classicpcgames and https://archive.org/details/softwarelibrary_msdos_games