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