I am starting my second full game of Crusader Kings II as King Stenkil of Sweden. He is married with four sons. Annoyingly, Sweden has an elective monarchy. I really prefer some sort of primogeniture; anything else seems unnatural. Or at least gavelkind. Maybe I'll live long enough to change it.
Until then, Prince Inge is my heir. That's fine. Let's make sure he has a good kingdom to inherit.
You can see what the immediate neighborhood looks like. Norway and Denmark are things, and there are some small entities waiting to be embraced by the Swedish fatherland.
First we marry our heir off to a Hungarian princess.
Then we gobble up Dal, a county between us an Norway we have a de jure claim on.
Next, here's something I get to do that I never did in my first game -- a holy war against the infidels. We look to the north and annex Hälsingland. The pagans to the north joined the war, but had no effect on the outcome. In both wars, I had about 2000 men to less than a thousand for the people I was trying to conquer. I would keep going, but my vassals are getting whiny about the levies, so I'm going to consolidate for a while.
OK, so I'm 12, and I don't have much territory. Not great. Let's start off by getting myself betrothed to a Greek princess. I don't have much in the way of troops (see small territory above), but I can probably afford to hire the smallest company of mercenaries (the Sami band) and take over an adjoining county. The Sami band is hired out right now, though, so I'll wait. I'm 12, I have my whole life in front of me, so I can wait. OK. That worked. Now I have three counties under my control and (in theory) bringing in money and providing troops. I have been avoiding serving my king, since I view that as rightfully mine, but perhaps I need to chill out and play along. Besides, I might be best off taking back the kingdom of Sweden rather than Noridake. So now I'm Chancellor of Noridake. I am saving up some money for another war, and waiting out my truce with the guy I took the last county from, when Count Rolf gets snippy with me. I try to throw him in
Well, this is difficult. My first queen, betrothed to her 12-year-old cousin. My cousin, Prince Bror, is the heir for now. Let's see what happens next. And...my weakness means I have to accept autonomous vassals. I have enough of a treasury to put down any attempts to disrupt my rule directly, but I think I will save it for emergencies. And...there it is. The King of Denmark thinks he sees weakness, and invades. And...I am maimed and captured in battle. And...my regent accepted the peace offer, losing a province. And...a Norwegian duke sees weakness and attacks, just after I let my armies stand down. And...Duchess Marta tries to claim the throne for herself. At least since the duke was claiming one of Marta's territories, that ends the previous war. And...I win the war while pregnant. Things may be turning around. Or maybe not.