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