Here is the full list of all 100 Viking Vengeance achievements.
Set 30 traps
Buy 30 Items
Collected 300 Metal Materials
You found the 1st Noble Rune Stone.
You found the 2 Noble Rune Stones.
You found the 3 Noble Rune Stones.
You found the 4 Noble Rune Stones.
You found the 5 Noble Rune Stones.
You found the 6 Noble Rune Stones.
You found the 7 Noble Rune Stones.
You found the 8 Noble Rune Stones.
You found the 9 Noble Rune Stones.
You finished instructions and got familiarized to the basic controls
Defeated Outlaws Leader
You've set the Viking Village free of outlaws and thugs
You've managed to kill the Alpha Wolf.
Achivements.Description.DefeatFafnirDragon
You've defeated the Dwarf General
You've defeatead the Draugr Viking Elite Leader
You've defeatead the Draugr Viking Heavy Armored Leader
You've defeatead the avatar of Tyr, God of War
You've defeatead the Plague Witch Queen
You've assassinated Baldur, God of Light
You've defeatead the Jötunn Hrimthur
You've defeatead the Jötunn Skyrmir
You've defeatead the Cardinal Sixtus
You've defeatead the Christian Emperor Richard
You've defeatead Archangel Michael
FinishCampaignWithZeroDeaths
Unlocked Thor's Idol Statue
The Gods have answered your calls 50 Times
The Gods have answered your calls 100 Times
The Gods have answered your calls 250 Times
Unlocked Loki's Idol Statue
Unlocked Odin's Idol Statue
Reach Level 10.
Reach Level 15.
Reach Level 25.
Reach Level 2 without taking any damage
You have reached Level 25 and Reseted it once.
You have reached Level 25 and Reseted it 3 times.
Get an Armor to the Maximum Level
You've obliterated 30 enemies in one single God Avatar state
You have used Blood to Revive 50 times.
You have used Blood to Revive 200 times.
Get a Weapon to the Maximum Level
Collected 25000 Blood
Collected 50000 Blood
Collected 100000 Blood
Enhanced 24 items
Collected 7000 Coins
Collected 20000 Coins
Collected 50000 Coins
3 consecutive minutes as a God Avatar
Collected 10 God Runes
Collected 20 God Runes
Collected 30 God Runes
Get a Helmet to the Maximum Level
Collected 8 Passive Runes
Collected 30 Passive Runes
Freeze enemies 16 times
Collect 15 Lore Notes
Collect 30 Lore Notes
Collect 50 Lore Notes
Electrocute enemies 18 times
Killed 50 Enemies
Killed 150 Enemies
Killed 500 Enemies
Executed 5 Enemies
Executed 25 Enemies
Executed 50 Enemies
Slayed 20 wildlife creatures
Slayed 100 wildlife creatures
Killed 20 Templars
Killed 50 Templars
Defeat 10 Priests
Eat 15 Mushrooms
Defeat 30 Valkyries
Poison enemies 20 times
Convert 25 Teutons
Set enemies on fire 30 times
Defeat 40 Outlaws and thugs
Stun enemies 25 times
Killed 60 Skeletons
Eat 30 Meats
Destroy 50 Ghosts
Kill 15 Draugr
Kill 40 Draugr
Kill 18 Viking Traitors
Kill 45 Viking Traitors
Kill 10 Jotnar
Kill 30 Jotnar
Break 25 Crates
Break 30 Barrels
Open 20 Chests
Flip over 20 Templar flags
Finished 10 Tomb Events
Destroy over 45 environment elements
Found 20 Secrets
Rescue 55 hostage