I never had a PC growing up but one of my close friends did and he had three games. Championship Manager, Age of Empires II and Inca II: Wiracocha (as it's known in our region). It's not a 10/10 game by any means, but it's a unique point and click with a fun retro future concept. The style would match the GOG library very well, and it's currently abandonware so it would be great to have a proper version of it.