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