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