Let me first congratulate for the game, I am having a good time in it!
I don't know if this is the correct place to report it because is related to the steam achievements but it is worth the shot.
I was playing with the dyflin and I won the short conquest and the respective achievement, then after a few more turns I won the short kingom, and after a few more I won the Short Fame, for both cases I didn't get the steam achievements.
Is this normal? Do I have to do 7 campaigns to get all the faction related victory achievements? I would like not to, even with the awesome Irish Vikings.
Thanks in advance, and may Odin watch over you