Full list of all 39 The Banner Saga achievements worth 1,000 gamerscore. It takes around 25-30 hours to unlock all of the achievements on Xbox One.
Defeat an enemy with a Shieldmaster.
Defeat an enemy with a Warmaster.
Defeat an enemy with a Raidmaster.
Defeat an enemy with a Warhawk.
Defeat an enemy with a Warden.
To unlock - Defeat an enemy with a Grudgewielder.
Unlock by getting permission to destroy a varl landmark.
Unlock by defeating an enemy with a Provoker.
Visit the godstone Ingrid.
Visit the godstone Marek.
Complete the game on Normal difficulty.
Defeat an enemy with a Backbiter.
Alette doesn't want to harm humans or varl...don't make her.
Defeat an enemy with a Skystriker.
Visit the godstone Dundr.
Complete the game without letting anyone in your caravan die to hunger.
Defeat an enemy with an Eagle Eye.
Complete the game on Hard difficulty level without losing a single battle.
Defeat an enemy with a Bowmaster.
Acquire 5 rank 5 items.
Defeat an enemy with a Mender.
Visit the godstone Hridvaldyr.
Defeat an enemy with a Warleader.
Visit the godstone Stravhs.
Complete the game without ever getting low morale.
Defeat an enemy with a Siege Archer.
Whew...Egil made it the whole way!
Visit the godstone Bjorulf.
Defeat an enemy with a Hunter.
Complete the game on Hard difficulty.
Defeat an enemy with a Thrasher.
Reach Boersgard in 120 days.
Defeat an enemy with a Strongarm.
Visit the godstone Hadrborg.
Fight 40 battles in a single playthrough.
Visit the godstone Denglr.
Win a battle on Hard difficulty in the camp Training Tent using 6 rank 5 units.
Defeat an enemy with a Spearmaster.
Visit the godstone Radormyr.