I also like achievements It depends a little on what kind of achievements they set up, of course, but if some are interesting and difficult to achieve, it will be cool to try collecting them. Hopefully Firaxis puts a little thought into these and don't just add boring and time consuming achievements (perhaps we should have a brainstorming session on achievements we would like to see). Either way, as the framework was already in place when they chose to use Steamworks, I don't see this taking all that much time from developing other things. They only need to compile a list of achievements and implement trackers for them. If on out of four appreciate achievements, I think that's pretty good.