Full list of all 47 Astronarch achievements.
The base game contains 41 achievements, and there are 3 DLC packs containing 6 achievements.
Defeat Corruption 20.
Defeat Corruption 10.
Defeat the Balrog Spawn.
Beat the game in under 30 minutes.
Defeat an elite without any items equipped.
Beat the game without any abilities upgraded.
Beat the game without using a potion.
Gain a level on every hero.
Defeat the King.
Unlock the Fiend.
Defeat a boss with 1 hero remaining.
Beat the game without losing a battle.
Unlock the Druid.
Sell 10 items or potions to the same merchant and then defeat the act.
Defeat the Mercenary Crew.
Use 3 potions in one combat.
Defeat a boss with all heroes at full HP.
Defeat the Deep Fiend.
Defeat the Executioner.
Unlock the Bloodmage.
Sell an ability orb and 2 potions to the same merchant.
Unlock the Illusionist.
Equip 3 of the same item to a hero.
Defeat the Beast of the Weald.
Unlock the Outlaw.
Unlock the Ranger.
Defeat an act without visiting a merchant.
Defeat an act after visiting at least 7 events.
Unlock the Alchemist.
Defeat the Hydra.
Have 50 positive effects on a hero at one time.
Have 50 negative effects on an enemy at one time.
Defeat the Blighted Hag.
Unlock the Ronin.
Have 500 Gold at one time.
Have 50 Morale at one time.
Defeat the Timeworn Golem.
Unlock the Brawler.
Emerge victorious in 10 combats during a single act.
Unlock the Bard.
Defeat all 3 elites during a single act.
Unlock the Fallen.
Defeat the Omen of Loss without taking the special blessing.
Defeat the Omen of Burden with the special item fully upgraded.
Defeat the Omen of Frailty without any items breaking.
Defeat the Omen of Doom without triggering its effect once.