Primary purpose of gaming is fun. If you need motivation to play a game than that game is not fun for you.
World Conquest is
a) Stupid as hell
b) Boring as hell
This is why I hope next expansion will introduce deeper peaceful mechanics, so a player will be able to be proud of small - but - ambitious cultural capital of the world, or whatever like that.
WC, unhistorical and boring.
Same. To me, the process just highlighted how bad the game was. There are plenty of other achievements I haven't gotten but every game mostly becomes the same.
CK2 is far more interesting because every succession has the potential to become a crises. Some you can manage well and get through fine but sometimes the wrong heir dies and suddenly your plans are all awry. Way more ups and downs. In EU4, the early game is interesting but after that it's just a linear path and the only question is whether your rate of expansion is sufficient for X goal or not.