Syndicate Plus, Syndicate Wars, and Ultima Underworld 1 & 2 are all free on GOG until Sept 3:
Always have been a big fan of the Syndicate games. Played those a lot on my Amiga home computer. Even if the end of the first Syndicate game was...unexpected, I thoroughly enjoyed both games. After my switch to PC, those games were among the first ones I purchased. Had to leave them behind when moving to South America, though. And the market for (physically boxed) PC games is non-existent. Console games are easy to get here. Both legally and illegally.
Consoles don't really interest me. Although I have seen videos today from a preview of the 'Steam deck' from Valve. The most expensive version has a retail price of 650 USD, but it can do a lot. That is a seriously capable little game machine...until you hook up a USB dongle and connect a monitor, Ethernet, mouse and keyboard to it. Then it is a pretty decent Linux computer too. And you can still use the built-in screen when a second monitor is connected. It has the makings of a Nintendo Switch "killer", it does everything a Switch can do and then a whole lot more.
And of course, it will play GoG games with ease
Of course, I should link to the video: