Here is the full list of all 50 Dead In Vinland achievements.
Slay Björn after poisoning him
Get a character to level 15
Win a fight with 2 looters in your team
Make Björn loses his patience
Have one of your characters murder another one
Give the maximum tribute to Elof
Kick a character
Win a fight with only one character
Finish the game without losing anyone (min. Survival difficulty)
Finish the game (Nice Vacation difficulty)
Finish the game (Survival difficulty)
Finish the game (Extreme Conditions difficulty)
Finish the game (Survival difficulty and True Viking)
Finish the game (Extreme Conditions difficulty and True Viking)
Kill the volcano
Get the Orichalcum Breastplate
Get the Orichalcum Greaves
Get the Orichalcum Gauntlets
You succeeded, yet you didn't survive...
Slay Björn
Kill Elof
Convince Egill to join your cause
Explore every area of the island
Get the Orichalcum Helmet
Go inside the volcano without protection and get out alive
Convince Grim to join your cause
Convince Gwendolen to join your cause
Raise 5 sheeps simultaneously
Kill Loki
Explore 100 areas
Convince Njall to join your cause
Defeat 3 enemies with single attack
Craft all stations in the camp
Have 10 characters in your village
Get a character to level 10
Craft 75 upgrades (multiple playthroughs)
Forge 150 items (multiple playthroughs)
Deal more than 15 damage in a single hit
Explore 50 areas
Win 50 fights (multiple playthroughs)
Get the Skull Ball
Get a character to level 5
Get a skill up to 100
Lose a character
Spend a night without fire
Accumulate 10 negative traits on one character
Explore 10 areas
Win 10 fights (multiple playthroughs)
Recruit your first ally
Win your first fight