I hope CK3 will have a completely overhauled tech advancement system from CK2. Tech advancement in CK2 is IMO the worst part of the game because of how simplistic it is, and I feel like every one of my playthroughs I do it nearly exactly the same way because of the way the game's mechanics funnel you into building everything up evenly instead of specializing.
I'd much prefer to have a research system similar to EU3's, where you can invest in certain categories to advance more quickly towards what you're interested in.
I'd much prefer to have a research system similar to EU3's, where you can invest in certain categories to advance more quickly towards what you're interested in.