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