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