The emergent gameplay (and storytelling) is what I like about it too. I don't expect anyone to play the game the way I do now. Most enjoy conquering vast Empires: me, I enjoy creating characters, giving them a little nest egg, and then having them do it all on their own; see if my dynastic people can survive and rule a Norse culture spanning through Asia, with no influence from me; if I conquered Rome and gave it to a son, made it independent, how long would it survive, or perhaps it would thrive; etc... At the same time, CK2 allows for significant tall growth now (not just wide). My last multiplayer game we played as vassals under an Emperor; basically, one of us became an Emperor, and then the other player supported an AI faction to overthrow the Emperor (and the player in charge of the Empire just surrenders).
I've been playing multiplayer CK2 again. Just two players.
Shortened my ramble below to a few things:
* Play Tall (focus on a few counties and dumping all resources into them)
* Got an Empire with as little land in it as possible, trying to shed outside provinces,
* Goal is 1 Duchy ruled by a Norse Emperor (Already am Emperor) in the early game, maximum centralization.
* Granting independence to de jure owned provinces of your religion is prohibited (so if I am King of Sweden, for example, I cannot grant independence to any Counts under me who have lands in the proper Kingdom of Sweden; unless I seize their land and give it to Christians, then I can grant independence)
* Building up a powerful bloodline-rich lineage
The Math behind my demesne size goals:
Emperor (Done): +4
Centralized: +4
Absolutism: +2
Switch back to Gavelkind *1.3
Base demesne size = 13
There is also a bonus which is 0.15*(Stewardship + 1/2 Spouse Stewardship) which factors in. For example, a character + spouse with 20 Stewardship each would total 0.15*30 = 4.5, multiply that by Gavelkind 1.3 = 5.85 (rounded down) so a total demesne of 18 (almost 19).
Most duchies don't have enough for 19 castles, so extra holding slots have to be gained via building Great Works/Wonders and prosperity events. My duchy of Upland has 17 holdings (8 of which are towns/temples by necessity, each county needs 1 of each main holding - Castle, town, temple - before duplicates can be built) leaving me with a total of 9 castles, I can get 4 more for a total of 13 via Wonder events; so I will need to hold onto some outer counties until the prosperity events start kicking in.
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We're both playing tall Norse with similar strategies.
I'm in the north playing Uppland, while she's playing Austergautland.
I had a focused strategy - also; I was playing with default equality (non-historical, but it's more fun this way because of how bloodlines work):
1. First generation Pt. 1: Take all counties in my duchy/Jarldom for myself, raid neighbours to get Viking trait. Keep an eye out for bloodlines, build Markets in core duchy.
2. First generation Pt. 2: Get to Shipbuilding tech ASAP so we can raid England for money.
3. Next generation (Ragnar): get bloodlines, raid and get wealth (Ragnar died soon)
4. Age of Vikings, my Heir did NOT have Ragnar's bloodline (since she was his sister), although he had some daughters which did: Get his daughters matrilineally married so they can expand the bloodline, get the Raider bloodline (Sea King/Queen + 100 more looted holdings - which can be done with ships + 4 looting armies)
5. Play tall, we both took about half of Sweden each (I took the top two duchies + Finland and bought a custom Kingdom, she took the tweo Southern duchies plus one of the Danish duchies and formed her own custom Kingdom). My goal was to conquer Vestergautland (De jure Sweden's last Duchy) and the Sami Kingdom to form a small Empire, but Vestergautland formed a HUGE Kingdom, so that was out of the question. Instead, I conquered Estonia and Sami to form a small custom Empire.
Here's our current map. She's going for Pomerania and Denmark to form her Empire. We each have 7-8 bloodlines accumulated, including Ragnar and Karling - breeding for positive traits, though we still haven't had the sacred triad (Attractive, Genius, Strong) but a few that have had two of those traits, plus left-handed is in our gene pool (a bad trait for most, but great for Norse since it offers a duelling advantage).
Also, if playing Norse, you can have your leader lead armies as a Hero without having to worry about maiming or death in random battle events - so in warfare (we defended against a huge 15-20 year crusade) you can put a berserk Viking Emperor at the head of an army and get TONS of events that increase Martial skill - I got up to 58, which is the highest I have ever seen in any character ever.
On the map below, it doesn't show, but the blue guy "Svithjod" owns A LOT more land, mainly in Northern France and Great Britain. Since he is a valuable ally with an extra 10,000 troops, we kept him around rather than seize his lands to form a Kingdom. Pomerania and Estonia are as good - and, I want to play tall and get rid of the Sami and Estonian Kingdom titles. The smaller your realm, the less hassle it is to be a massive douchebag tyrant and do whatever you want. The plan is to grant de jure lands to people in my court of foreign religions, and then grant them independence; to shrink things down a little in the early game; I have done the expansive Empire thing, I am less of a fan of it than
Also, one thing of interest is that great works also cause an event which increase the number of holdings in the county which they are built, which increases the ability to build tall., when I am powerful enough, I will create a few Viceroyalties (probably in distant locations rather than nearby, like in Sicily, Anatolia, and Egypt) and pump them up full of resources to expand across the world in whatever way they want while I focus on breeding superhumans. That is my idea of fun.
Bloodlines are easy to accumulate by matrilineally marrying any men who have them to people of your dynasty. You can then do a bit of inbreeding by matrilineally marrying any dynasty women with unique bloodlines in with your royal lineage. In multiplayer with women equal rights on, it's healthier and easier. You can select a woman as an heir and matrilineally marry in traits from the other dynasty, avoiding genetic issues with inbreeding.