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