User blog comment:Batran99/Group Chat/@comment-6812733-20131027190038/@comment-24499539-20131027232959

It will be unlikely, 99batran or MrOwnerandPwner didn't decide to put in the wikis. You need to create a steam account in order to chat.

If this is true, that can be found for many months. But so far we need to play EU4 and rebuild Rome. But, I don't know if this is going to work, anyways that chat is for weekdays not weekends since we had EU4 multiplayer progress.