NB: Pomerania(formable) and Bulgaria(releasable) aren't available in the 1444 start date. 4.3k votes, 458 comments. A reformable country is one that does start as an independent nation but if it ceases to exist, then other countries with similar culture may transform into it, adopting their flag, ideas, and identity. 225k members in the eu4 community. Formable Nations are nations that do not exist in the 450 A.U.C (Ab Urbe Condita) starting date but can be created by existing nations that meet the requirements through a decision, allowing said nations to shift their identity by acquiring a new name, a new flag, and a new map color. ... map of all the nations that gain new missions in 1.30. Full Album of missions. With many formable nations, you can go on and form additional nations over the course of your game. A formable country is one that does not exist at the beginning of the game (although it might in later historical starts) but can be formed if certain conditions are met.
However, there are certain limitations on this based on EU4’s end-game tags. These tags mean that if you form any of the nations below, you cannot form any other nations.