Since GOG seems to be going down the list of Sid Miere games, maybe Sid Meire's Civil War is on the list?
It's the bundled version to Sid's two Real Time Tactical games on Civil War Battles: "Gettysburg" and "Antietam" (with the free expansion for "Antietam": "South Mountain". It came out in 2000;would like to see them here at GOG.
I still play them,though it takes a few tweaks to get them to run (which is why I want them on GOG).
BTW "Sid Meire's Gettysburg" was the first game to be released by Firaxis,about a year before Alpha Centuri.

[redacted : I am an incult]

Back on topic, I never heard of those. Rome:Civ was already news to my poor self, I didn t know there were so much things in the civ world. I will follow that.

Never heard of that one either... though if you would like a civil war game to play Ultimate General Gettysburg is a pretty good game.

Don't forget Ultimate General Civil war is in early access as well.

But yes now with the civ games having landed on gog if they sell well I certainly think other civ. games will follow.

https://en.wikipedia.org/wiki/Sid_Meier%27s_Gettysburg!

Ultimate General Gettyburg is an pretty good game, as stated, but Sid Miere's Gettysburg is a lot better...as is the recent Scoure of War:Gettysburg.