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