The Banner Saga 2
54 Achievements
1,250
45-55h
Hard Difficulty
Complete the game on Hard difficulty.
50
0.07%
How to unlock the Hard Difficulty achievement in The Banner Saga 2 - Definitive Guide
Didn't lose a battle, have anyone die of hunger nor get low morale and didn't get any of those achievements either.
The biggest difference between Easy, Normal, and Hard is the amount of time your characters will spend "injured" after a battle. On Hard, you need to rest often to make sure that your next battle will see you with full armor and health, otherwise you'll have a bad time. For this reason, it is very difficult to pair Hard difficulty with the Quartermaster and Forced March achievements.
The battles themselves are also harder, featuring more and stronger enemies. The same basic strategies will prevail though, so make sure you are taking out enemy armor first, staying back and letting them come to you so you do not get surrounded, killing ranged enemies quickly, etc.