Actually, it is a fun game, beer and bretzel type.
You have several (i think 7) eras, and at the start of each era, each players draws a civilization and a “bonus card” (which can be an extra, small civ, better fighting abilities, more units). You then have a certain amount of "IPC"s for each civ, a fixed order of play for each era (depending on the civs)… you use your ipcs mainly to conquer new land (converting them into troops) or to fortify your lands.
You score by having lands, which score differently in each era, by having cities (you start with a capital, once you conquer an enemy capital it becomes a city, once you conquer a city, that is removed), and by owning monuments (conquered or built).
Once a civ has been played, it never gets back again (to move that is, though it will certainly be the target of following civs).
It was quite fun to see the mongols conquer the pyramids in egypt. Less fun is that everyone who is in the “roman” era, but before them, seems to focues on massively digging in, so i have never seen the romans conquer anything close to what they really had.