They are real-time. Civ is turn-based.
RoN is an exception to this rule, being a real-time game, but even then it has "turn-based" features like being able to think about your next move all you want with the game paused before putting the plan in action and actually being able to issue orders while the game is paused.
The main reason it got on this site though was it was BR's game - the same BR who was responsible for Civ2.
The rest of the games you mention are not covered as they aren't really part of the game styles that Apolyton covers. That being said, the Other Games forum will allow you to talk about any game you like, from Empire Earth to the Sims.
Finally, this probably should have gone in the community forum, being an issue about Apolyton itself and not games being made.
