Full list of all 39 The Dungeon Beneath achievements.
The base game contains 30 achievements, and there are 4 DLC packs containing 9 achievements.
Acquire Iliphar's Arbalest.
Reach Abaddon with Taz'gyn.
Reach Abaddon with Eloa.
Reach Abaddon with a Follower in your party.
Reach Abaddon with no Fighters.
Reach Abaddon with Elder Gryx.
Reach Abaddon in under 60 rounds.
Reach Abaddon with Thardoric of the Hammer.
Defeat The Hand of Abaddon.
Reach Abaddon with Dominique Boutroux.
Reach Abaddon with no Mages.
Acquire a Searing Sign.
Reach Abaddon with Mariana.
Defeat The Mind Reaver.
Have 10 Armor on a single unit.
Defeat Abaddon.
Defeat Simulae Prime.
Acquire a Dragon Scale.
Deal 20 or more damage to a single unit with one attack.
Deal 10 or more damage to a single unit with one attack.
Defeat Dungeon Boss Firis.
Defeat the Reanimated Colossus.
Win a battle with only your hero left alive.
Defeat King Fetterbite.
Win a battle in the first round.
Win a battle.
Reach Abaddon on New Game+.
Reach Abaddon on New Game++.
Reach Abaddon on New Game+++.
Reach Abaddon on New Game++++.
Reach Abaddon with Xandos.
Challenge a god with the Lost Adventurer.
The ultimate test...
Challenge a god on New Game++++.
Kill an Aurum Worm.
Close the Portal on Legend.
Survive Death's Invitation.
Defeat Death.
Climb more than 200 floors in The Tower.