was it really 4x? it sounds a bit like alpha centauri, but that is set at an alien world
so: the management part: did you just order buildings built or did you have to choose where to place them. Did you build inside cities or on the worldmap? turn based or real time?
exploration: most of the world black or filled in but important sites undiscoered? option c?
what resources did you have to manage? how did various screens look like? research? Any special names that suddenly catch your mind? (an example, I used to play a mmog where one of the ultimate tech/weapons was CWM, Cybantropic War Machines. It's been ages since I played it, but anyone who played it semi-regularly will know what I mean, I hope - just remembered, War of Conquest, sorry, off-topic)
I'm sure not everything is on there, but it's a try, I couldn't find anything
http://en.wikipedia.org/wiki/Chronol...4X_video_games