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