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.
Defeat a boss with 1 hero remaining.
Unlock the Fiend.
Defeat the Balrog Spawn.
Beat the game without using a potion.
Defeat the King.
Defeat the Blighted Hag.
Defeat the Timeworn Golem.
Defeat a boss with all heroes at full HP.
Have 50 negative effects on an enemy at one time.
Beat the game in under 30 minutes.
Beat the game without losing a battle.
Defeat the Hydra.
Defeat the Mercenary Crew.
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.
Have 500 Gold at one time.
Have 50 positive effects on a hero at one time.
Defeat the Executioner.
Unlock the Druid.
Unlock the Ronin.
Sell 10 items or potions to the same merchant and then defeat the act.
Unlock the Illusionist.
Equip 3 of the same item to a hero.
Unlock the Outlaw.
Defeat an act without visiting a merchant.
Have 50 Morale at one time.
Unlock the Brawler.
Emerge victorious in 10 combats during a single act.
Defeat the Deep Fiend.
Unlock the Alchemist.
Unlock the Bard.
Use 3 potions in one combat.
Defeat the Beast of the Weald.
Defeat all 3 elites during a single act.
Beat the game without any abilities upgraded.
Gain a level on every hero.
Defeat an elite without any items equipped.
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.