13. Think of the players who want more settlements, and the players who autoresolve the many sieges.
14. Think of the players who want more settlements, and the players who complain about the tedious endgame.
15. Think of the players who boast about finishing the game in 100 turns and the ones taking 500+ turns.
16. Think of the players that want a complex techtree and the players who never see the second half of the techtree when finishing the campaign within 200 turns.
17. Think of the players who train 10 star generals on rebels and the players who roleplay their generals.
18. Think of the players who use every possible exploit to win and the ones playing according to the "rules".

And most importantly:

19. Think of how many different types of players there are and whether one type is more important than the other.