Here is the full list of all 53 Cursed Treasure 2 achievements.
Defeat the Dwarf Kings.
Get BRILLIANTS for the day missions 16-18.
Defeat the 7th boss.
Find treasure chests on levels 19, 20 and 21.
Get BRILLIANTS for the day missions 7-9.
Get BRILLIANTS for the night missions 4-6.
Defeat the Barbarian Queen.
Remove the Charm from the towers using Terror spell 100 times.
Complete levels 16, 17 or 18 without destroying any Sacred Stones.
Defeat the King.
Get BRILLIANTS for the day missions 4-6.
Defeat the Archmage.
Cut down 100 forests.
Achieve rank 20.
Seize buildings 200 times.
Damage 50 enemies with the Thunder Scroll.
Upgrade all the skills of a race to the max.
Make 100 mines (poisonous, energy or volcanic) of the enemies.
Defeat the Arch Druid.
Defeat 2000 common enemies.
Turn 50 enemies into chickens.
Defeat an invisible Ninja.
Get BRILLIANTS for the night missions 1-3.
Get BRILLIANTS for the day missions 1-3.
Collect 10,000 gold picking up coins.
Defeat 50 champions.
Collect 100 mana potions.
Cage 50 enemies with the Stasis Scroll.
Scare off 100 enemies.
Achieve rank 10.
Defeat the High Priest.
Upgrade a tower to the 5th rank.
Defeat 5 enemies with one meteor.
Upgrade any skill to the max (up to 5th rank).
Get BRILLIANT for a night mission.
Defeat an armored Knight.
Get BRILLIANT for a day mission.
Defeat the General.
Defeat a flying enemy in flight.
Upgrade a tower to the 3rd rank.
Defeat a champion.
Defeat an enemy carrying a gem.
Get BRILLIANTS for the day missions 10-12.
Get BRILLIANTS for the day missions 13-15.
Get BRILLIANTS for the day missions 19-21.
Get BRILLIANTS for the day missions 22-24.
Get BRILLIANTS for the night missions 7-9.
Get BRILLIANTS for the night missions 10-12.
Get BRILLIANTS for the night missions 13-15.
Get BRILLIANTS for the night missions 16-18.
Get BRILLIANTS for the night missions 19-21.
Get BRILLIANTS for the night missions 22-24.
Defeat 50 Divers while underwater.