Here is the full list of all 36 The Mighty Quest For Epic Loot achievements.
Reach level 30 with the Knight and the Archer
Build an 8 room castle
Collect a total of 500,000 gold
Defeat 50 boss creatures
Collect a total of 200,000 gold
Slay 100 Spiders
Use 100 healing potions
Your castle claimed the lives of 50 heroes
Build a 6 room castle
Defeat 5000 creatures
Your castle claimed the lives of 20 heroes
Collect a total of 50,000 gold
Your castle claimed the lives of 10 heroes
Loot 500 items
Get 10 friends in your network
Loot 15 castles that are higher level than your hero
Use 50 healing potions
Place 100 creatures in your castle
Loot 15 castles that are the same level as your hero
Build a 5 room castle
Defeat 10 friend castles
Use 20 healing potions
Slay 50 Vampires
Defeat 1500 creatures
Loot 200 items
Place 50 creatures in your castle
Loot 100 items
Place 25 creatures in your castle
Loot 20 castles in a row
Loot 15 castles that are lower level than your hero
Defeat 500 creatures
Reach level 5 with any hero
Loot 10 castles in a row
Loot 5 castles in a row
Equip your hero with a piece of armor in every equipment slot
Loot a castle at a higher level than your hero