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