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