Which route are you taking on this?
Well, it is a tricky matter, and as seen from the response we have already garnered for IGC 2.0k it is also a very sensitive one...
IGC 2.0k essentially weakens Russia in relation to Sweden (even if Karelia is now Russian). There are now level 3 fortresses in Savolaks and Nyland, representing the pretty powerful historical castles at Viborg and Olofsborg. This, coupled with some leader adjustments seems to take care of the Russo-Swedish part of the problem. Unfortunately, the introduction of some new Swedish leaders could make matters worse for Denmark.
The Danish issues remain to solve. These are the main problems as I see them:
* Norway should be much harder to invade.
* Skåne should remain Danish for a century longer than is usually the case in the game.
* The Danish AI should be much less likely to offer Jylland in return for peace.
* The Danish AI should stop trying to garrison Gotland with 60k troops.
We actually tried adding level 3 fortresses to Östlandet and Trondheim to represent the difficulty of invasion, but this seemed to lead to a severe bleed of Swedish troops, making Russia even more likely to chop off eastern Sweden. The same was true for Skåne.
Since we can't really do anything about the AI, I can only think of the following solutions (which we will try out for IGC 2.1):
* More Danish generals for the first half of the game, especially 1492-1570.
* Improved Danish monarchs.
* Lowered Danish build costs.