I really love CK2, it is my dream game in a lot of respects. But it lost its thrill because its just too easy.
Starting as a lowly independent count, it is not much trouble conquering first substantial duchy. And then before you know it, you have 10k troops and can conquer the world.
No matter where or who I start, it is basically the same deal. Patiently conquer first duchy, and then defeat nearly anyone.
Any suggestions on making the game more challenging?
Play massive multiplayer games, you can find groups of people on discord.
In my experience, the most fun CK2 multiplayer experiences are either coops of a few players (but that only makes it easier) or each player has a country competitive (probably what you are looking for).
In 1066, some suggestions for Co-op games:
- England, Ireland (Mumu), Scotland, Wales (max 4)
- Galicia, Leon, Castille, Navarra, Aragon, Barcelona (max 6)
- Different counts in HRE or the Byzantine Empire.
- Sweden, Poland, Hungary, Croatia (max 4)
Some suggestions for minor versus games (that don't have 20+ players):
In 1066: England, France, Holy Roman Empire vs. Fatmid, Seljuk and the big one south of Spain. (Great Crusades/Jihads)
In 976: England, France, Germany, Italy vs. Ikhshidid, Jannabid, Abbasid, Fatmid. (again great Crusades/Jihads, and while those don't happen expand)
And 20+ games where everyone picks a country and essentially roleplays.
Crusader Kings 2 is essentially a single-player game, it's not supposed to be very competitive and not all nations are created equal, but if you want to have a real challenge, you have to play against human players.
One cool thing in multiplayer is that if you make a mistake you can't rollback, you have to live with the consequences and with the lost land. It's about making the best out of a dire situation.