I really enjoyed the XCOM games. Particularly the War of the Chosen expansion.
Pluses: The turned based play made it special. In real time the computer can make decisions far faster and it's not fun to be over-run. It almost implemented real heroes like we see in RPGs.
Minuses: The difficulty of the game was ramped up with silly artificial constraints. Small play areas, timers, and squad size limitations? Pfft. Some of the game community decided I should be forced to play they felt was appropriate. It's my game, I should be able to play the way that suits me.
I'd like to keep playing this game without having to be online. I'd like to mod it to take advantage of the advances in Unreal Engine and AI models to improve the strategy of the aliens in a meaningful way. I'd love to see online coop so my friends and I can play the hero characters on missions. The original devs would like to make a new version, but it's not been in the cards for them. Maybe GOG can take a more proactive roll in that?