Here is the full list of all 55 The Banner Saga 2 achievements.
Witness Eyeless possess 10 fallen units.
Complete the game on Hard difficulty level without losing a single battle.
Survive all battles on Easy.
With 6 Rank 10 units, win a Hard difficulty sparring battle in the Training Tent.
Build an army of over 600 trained fighters.
Prevail with Rook against overwhelming numbers.
Survive Hard Mode without a single reload
Survive without using the Horn for willpower. (Normal or Hard Difficulty)
Survive using only parties of 4 varl in every battle. (Normal or Hard Difficulty)
Survive with only female Heroes. (Normal or Hard Difficulty)
Survive with only human Heroes. (Normal or Hard Difficulty)
Survive without a single Hero dying. (Normal or Hard Difficulty)
Survive without Recruiting Heroes. (Normal or Hard Difficulty)
Survive all battles on Normal.
Survive with fewer than 20 Heroes dying. (Normal or Hard Difficulty)
Survive in less than 180 minutes for your total turns. (Normal or Hard Difficulty)
Survive all battles on Hard.
Break 30 barricades in a single playthrough.
Defeat 3 enemies with Zefr.
Defeat 3 enemies with a Poet.
Fight 32 battles in a single playthrough.
Complete Holfi's Training.
Acquire 3 rank 10 items.
Defeat 3 enemies with War Bear.
Complete the game on Hard difficulty.
Complete the game without ever getting low morale.
Meet King Meinolf with Alette.
Bring 400 clansmen safely into Arberrang.
Defeat 3 enemies with an Axe Thrower.
Kill 5 enemies while stealthed.
Defeat 3 enemies with a Tracker.
Complete Sven's Training.
Defeat 3 enemies with a Female Horseborn Cantref.
Defeat 3 enemies with a Slaughterer.
Complete the game on Normal difficulty.
Complete the game without letting anyone in your caravan die to hunger.
Meet King Meinolf with Rook.
Reach Arberrang in 100 days or less.
Visit the godstone Lauga.
Maintain an alliance with Rugga.
Kill a Sundr.
Bolverk always acts as the Ravens expect.
Reach Oldford with at least 20 Varl following Bolverk.
Visit the godstone Bygglaerer.
Kill 5 in one turn with Cull the Weak.
Visit the godstone Geirraðr.
Defeat 3 enemies with a Male Horseborn Teulu.
Visit the godstone Vez'nan.
Defeat 3 enemies with a Shieldmaiden.
Defeat 3 enemies with a Wanderer.
Visit the godstone Baldringr.
Visit the godstone Irynx.
Defeat 3 enemies with a Berserk.
Visit the godstone Aselei.
Import Save Game from Banner Saga 1.