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