"Note that most of these have not had the master builds updated, so you shouldn't need to redownload the installer or anything," GOG's announcement noted. "Some of the titles, our build ninjas performed their usual magic on, and they'll work now in Windows 8 – and we're even adding Windows 7 support to a few. We'll also be adding more Windows 8 games as time goes by and we've got time to apply some fixes to more of the classic games in the catalog."
We reached out to GOG for an official list of the 431 compatible games, but they told us it's easier to list the games that aren't Windows 8 compatible. We've dropped that list after the break.