Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Archivist	Complete an Anniversary mission. (Den of Corruption or Den of Terror)
Artifact Hunter	Research and recover an artifact.
Ascetic	Unlock the Ascetic class.
Best Dressed	Equip an epic item set on a character.
Blademaster	Unlock the Blademaster class.
Bounty Expert	Complete ten bounties.
Bounty Hunter	Complete a bounty.
Curious Adventurer	Complete a Historical Challenge in Adventure mode.
Decipherer	Unlock a puzzle chest.
Dungeon Mapper	Completely explore one floor of a dungeon.
Elite Mission	Complete a tier seven (elite) side mission.
Enchanter	Use an enhancement item.
Enforcer	Unlock the Enforcer class.
Exterminator	Kill all enemies on one floor of a dungeon.
Fashion Conscious	Equip any item set on a character.
Flawless Victory	Win a battle against three or more enemies without taking damage.
Fully Staffed	Add all additional party slots to the company roster.
Hermit	Unlock the Hermit class.
Hoarder	Unlock all inventory bags.
Legendary Company	Reach the maximum Company Level.
Legendary Enchanter	Enchant an item with a Spark of Legend.
Made Of Iron	Complete the campaign on Veteran or higher difficulty with the 'Ironman' rules enabled. (No custom difficulty allowed)
Mage Lord	Unlock the Mage Lord class.
Master Builder	Construct every upgrade for the Keep.
Mighty Blow	Kill a full-health enemy with a single attack.
Monster Hunter	Defeat a legendary creature.
Moonlighting	Complete a mission from the Savantir Docks.
Multi-faceted Adventurer	Complete a Custom adventure with seven or more adventure modifiers.
Nemesis	Unlock the Nemesis class.
Nostalgic Adventurer	Complete a Custom adventure with the following settings: Defeat the Dreadfather, Classic Book of Dread factions, Classic length, No adventure modifiers.
Pack Rat	Unlock an additional inventory bag.
Pilgrim	Use a Mysterious Shrine.
Renovator	Construct an upgrade for the Keep.
Scout	Unlock the Scout class.
Selective Adventurer	Complete a Custom adventure in Adventure mode.
Silver Tongue	Reach maximum reputation with any faction.
Something For Nothing	Kill an enemy with a 'Free Skill' activation.
Special Mission	Complete a tier six (special) side mission.
Specialist	Adopt a subclass.
Spellwarden	Unlock the Spellwarden class.
Swift Adventurer	Complete a Weekly Challenge in Adventure mode.
Tier Five Mission	Complete a tier five side mission.
Tier Four Mission	Complete a tier four side mission.
Tier One Mission	Complete a tier one side mission.
Tier Three Mission	Complete a tier three side mission.
Tier Two Mission	Complete a tier two side mission.
Tracker	Unlock the Tracker class.
Two For One	Finish two enemies with a single attack.
Underboss	Unlock the Underboss class.
Writ of Expansion	Add an additional party slot to the company roster.