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
Explore every area of the island
Convince Grim to join your cause
Convince Egill to join your cause
Convince Njall to join your cause
Convince Gwendolen to join your cause
Get the Orichalcum Greaves
Get the Orichalcum Gauntlets
Raise 5 sheeps simultaneously
Explore 100 areas
Craft 75 upgrades (multiple playthroughs)
Get the Orichalcum Helmet
Forge 150 items (multiple playthroughs)
Win 50 fights (multiple playthroughs)
Have 10 characters in your village
Get a character to level 15
Get a skill up to 100
Get the Skull Ball
Deal more than 15 damage in a single hit
Explore 50 areas
Craft all stations in the camp
Get a character to level 10
Win 10 fights (multiple playthroughs)
Lose a character
Accumulate 10 negative traits on one character
Get a character to level 5
Explore 10 areas
Give the maximum tribute to Elof
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
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)