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