This GOG Connect comes with 20 games, including giant popular games and smaller indie titles. Titles eligible for Connect include The Witcher: Enhanced Edition, The Witcher 2: Enhanced Edition, The Witcher Adventure Game, Starbound, HuniePop, and many more.
The website details the process to work GOG Connect, saying, “To connect your library with GOG.com, sign in to your active Steam account via this page. NOTE: Make sure your Steam Privacy Settings & Profile Status are set to public. You’ll be able to permanently import all the games listed below to your GOG.com library – assuming you own them. The eligible games are limited-time offers made possible by participating developers and publishers, so stay tuned for more games to come. You can connect only one Steam account with your GOG.com library. This process is permanent – choose wisely!“
Currently the demand for the service is so high. When you refresh your library, the loader says it may take up to several days.
GOG Connect will continue to provide The Witcher games until December 7th. And be sure to check out GOG’s non-Connect games, as they’re having a huge fall sale on top of all their usual ones.