Martinus
Emperor
I will start - I really like the whole concept and implementation of civics. It is flexible, elegant, allowing you to pivot in response to events around you and retool for a different victory.
The part about CiV I disliked was that once you started to get into civics trees, you were effectively locked out of alternative options.
The part about CiV I disliked was that once you started to get into civics trees, you were effectively locked out of alternative options.