Here is the full list of all 46 Heroine's Quest: The Herald of Ragnarok achievements.
Get killed in Quest For Yrolg
Complete the game as sorceress
Win a moderate victory in the Test of Fate
Get decapitated in combat
Reach chapter 4 as sorceress
Prove yourself a better guardian than Aurvandel
Defeat Brauggi
Spend your life in jail
Learn the lightning bolt spell
Mynd you, m00se bites Kan be pretti nasti...
Reach chapter 2 as sorceress
Find the Hero6 room
Find your first food
Reach chapter 2 as warrior
Reach chapter 3 as warrior
Reach chapter 4 as warrior
Complete the game as warrior
Obtain Balmung
Reach maximum score as warrior
Reach chapter 3 as sorceress
Reach maximum score as sorceress
Reach chapter 2 as rogue
Reach chapter 3 as rogue
Reach chapter 4 as rogue
Complete the game as rogue
Deal with violent situations without using violence
Reach maximum score as rogue
Complete the game with all three classes
Play the entire game on hardest difficulty
Complete the game within one week
Complete the game with 100 honor
Complete the game with less than 10 honor
Prove yourself a better guardian than Sigurd
Steal a quest reward without doing the quest
Win an easy victory in the Test of Fate
Win a difficult victory in the Test of Fate
Maximize your primary stats
Defeat Surtr
Win the battle for Munarvagir
Deliver the svartalf crystal
Befriend Ratatosk
Get slain by Elsa
You've waited 24 years to do this!
Find Radiant's room
Defeat Dolores
Complete the game while cursed