Epic Quest

1. 
   I - Cave of DariusSecret

   Steam withholds the description of a secret achievement.
   17%
2. 
   II - The CatacombSecret

   Steam withholds the description of a secret achievement.
   9.5%
3. 
   III - Darkmetal MinesSecret

   Steam withholds the description of a secret achievement.
   7.9%
4. 
   IV - Underground ShrineSecret

   Steam withholds the description of a secret achievement.
   8.7%
5. 
   V - Tomb of DariusSecret

   Steam withholds the description of a secret achievement.
   7.9%
6. 
   VI - ShadowkeepSecret

   Steam withholds the description of a secret achievement.
   6.3%
7. 
   Descendant of DariusSecret

   Steam withholds the description of a secret achievement.
   6.3%
8. 
   VII - Bream's Chapel Secret

   Steam withholds the description of a secret achievement.
   3.1%
9. 
   Meet the Warrior

   Recruit Dustin
   13%
10. 
    Meet the Paladin

    Recruit Harold
    12%
11. 
    Meet the Mage

    Recruit Florian
    12%
12. 
    Eisendrache

    Collect all pieces of the Dragon Equipment
    5.5%
13. 
    The King in Yellow

    Trade all Robes for the the Yellow Robe
    2.3%
14. 
    Legendary Hero

    Collect all pieces of Darius's Equipment
    3.1%
15. 
    Treasure Hunter

    Open at least 300 chests
    3.1%
16. 
    Epic Quest

    Achieve 100% completion, then watch the ending
    1.5%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 16 of them.