Im writing just to bump this thread in hope of a Developer reply.
Played Korea and did all of its achievements and the country really is a joke compared to all of its neighbours.
If what you mentioned about Korea being in the golden age, having one of the larger populations of the time etc. Is true, It is really laughable because iirc even the manchu tribes have better economy than Korea lmao
I think a huge Korea buff with a small manchu buff would shake the region even better, since half the games i still don't see ming collapse
I think at this point most of us know better than to expect a Korea buff from Paradox. I only wrote this post to bring to attention what kind of state Korea is currently in, and maybe convince the developers to stop bloody nerfing an already half-dead country. Because at this rate they're gonta nerf Korea's development next, and then nerf Sejong into mere mediocrity, because
reasons.
We get it Paradox, more people like to play the Manchu tribes or the Japanese daimyos, and Korea needs to be easy food for both of these nations to expand. But wouldn't it be more enticing for them to expand their powerbase into some actually decent land instead of what's basically the equivalent of a mountainous Siberia? (not to mention the wrong culture) Food for thought.
Japan's national ideas are more based on Imperial Japan of the Meiji and Showa emperors rather than anything historical from the EU4 timeframe. They have ideas such as Unification under the Emperor referring to the Meiji Restoration, Modernization referring to the modernization of Japan during the Meiji period, and Maritime Legacy referring the Imperial Japanese Navy that defeated the Russians in Tsushima and fought the Americans in the Pacific. Having these ideas is extremely weird during the EU4 time frame however. For example, the only Maritime Legacy Japan had from 1444-1821 was getting defeated by Korean admiral Yi Sun-sin during the Imjin War, losing a battle against 12 ships when they had around 330.
A lot of national ideas (along with Japan) are actually unsuited for EU4's timeline, E.G. Germany and Italy. I'm assuming Paradox used the more modern versions of these countries due to them
not actually existing during said timeline. They're basically supposed to be reward formations exclusive to the player, and they give accordingly great national ideas.
However this applies slightly differently in Japan's case. When's the last time you've seen the AI form Germany? Or hell, even Italy for that matter? The AI is never good enough to manage the AE and alliances enough to form these nations, however in the case of Japan, it's almost guaranteed to form every game, due to the fact that they're completely shielded from outside wars, and only have to care about their internal battle royale.
Unlike the HRE, which only brings in the Emperor and the Emperor's allies upon a war declaration from an outsider, when one of the Japanese daimyos get declared on, the entirety of the archipelago drops what they're doing and defends them, along with the Shogun's allies if they have any. This means that unless a country powerful enough to overcome 30 different OPM's at once (like Ming) declares war on them, they're completely safe to do whatever they want on the islands. Whoever wins the battle royale (which ends waaay too early in-game, in real life the daimyo network lasted until the
19th century, when they overthrew the Tokugawa shogunate) is free to form Japan, by which they recieve their powerful ideas.
That aside though, the Japanese idea set is really more of a caricature of modern Japan than it is an accurate representation of what Japan would've been if they united then. Their land military ideas are justified, but +15 settler increase? 10% ship durability? -15% aggressive expansion impact?? What are these ideas even based on? WWII Era Japan 'colonising' the Pacific islands? As I mentioned before, these ideas are
reward formations exclusive to the player. But in Japan's case the AI's free to use it too, and for the player it's not even that hard. Uniting Japan is a trivial task, for which the reward is immense.