I'm interested all the civs, but I decided to focus on filling empty areas of the map first. So that Euro civs cannot take empty areas as colony for free, and make more diversity.
About other people's civ addition mods, they were good but I wonder I can actually take their works. Even if I get permissions, merging it into other mods requires almost same amount of works with starting from nothing.
So the main problem is my slow working speed as a newbie coder, game maker and balancer. I'm glad that Australia and Boer works well and now I can look for other civs, but on the other hand, I'm worried how long it will take to add it. Furthermore, I wonder whether I can keep it compatible with RFCD main mod or not when the modmod gets bigger.