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