Here is the full list of all 43 Warhammer: Chaosbane achievements.
Finish the game as Elessa
Kill all bosses in Boss Rush on at least "Chaos 2" difficulty
Trade 50 Fragments with the Collectors' Guild
Complete 50 side activities
Kill a boss in Boss Rush on at least "Chaos 2" difficulty
Collect 1,000 pieces of gear
Complete your first Relic Hunt
Finish the game as Bragi
Kill an elite with a build made from at least 90 Skill Points
Buy all rewards available on the God Skill Tree
Bless your first item
Reach level 50 with any character
Finish Act III
Kill a boss on "Very hard" difficulty
Find your first heroic item (not a quest reward)
Open 50 chests
Complete your first set of equipment
Find 100 rare or heroic pieces of gear
Complete a side activity
Finish Act II
Kill 100 champions
Acquire 100,000 gold pieces
Finish Act I
Reach level 25 with any character
Use a God Skill
Unlock your first reward from the God Skill Tree
Kill 1,000 Ungors
Kill a Jabberslythe
Kill a Mutalith
Be fully equipped with rare or heroic items
Donate 100 items to the Collectors' Guild
Kill 1,000 cultists
Use bloodlust
Collect 100 Fragments
Kill 1,000 daemons
Be fully equipped
Finish the Prologue
Finish the game as Konrad
Finish the game as Elontir
Finish the game as all characters
Complete 50 Relic Hunts
Bless a heroic item 50 times
Kill a boss on "Chaos 5" difficulty