Before Civ I.
In the late 80's I played a game called "Strategic Conquest" on my Machintosh SE, it was a pecursor of Civilization.
In "Strategic Conquest" there were only three kinds of terrain squares: land, water and cities. There were no city improvements; cities only built military units. There was no technology tree. The units avalible were the ones in the late industrial era: tanks, infantry, battleships, submarines, transports, aircraft carriers, and jet fighters.
Oh, and the game was in black and white.