Here is the full list of all 32 Warlocks Citadel achievements.
Kill 100 monsters by Killer skill.
Save all characters.
Equip complete Dragon Garb.
Kill 500 monsters by Frost Nova
Summon 200 zombies.
Finish a level without being attacked.
Drink all kinds of potion and remember it.
Purify 100 monsters by Retribution.
Don't use any rage powered skills.
Accept demon's offer.
Kill 500 monsters by fireball.
Finish the game in hardcore mode.
Kill 1000 monsters with bow and arrows.
Finish the game in easy mode.
Equip complete Paladin Garb.
Equip the Ifrit Saber.
Kill 1000 monsters with axe.
Equip any complete item set.
Collect 100 spheres of knowledge.
Unlock any hero class.
Finish the game but fail to find the princess.
Finish the game in normal mode.
Defeat the Golden Guardian.
Find the Princess.
Defeat the Hydra.
Receive 10000 damage in one game.
Visit all rooms on 10 levels.
Kill 1000 monsters.
Defeat the Minotaur.
Find a secret room.
Spend all continues.
Evade 100 attacks.