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 Dominique Boutroux.
Defeat The Hand of Abaddon.
Defeat Dungeon Boss Firis.
Reach Abaddon with Eloa.
Have 10 Armor on a single unit.
Reach Abaddon with Taz'gyn.
Acquire a Searing Sign.
Deal 20 or more damage to a single unit with one attack.
Reach Abaddon with Mariana.
Defeat The Mind Reaver.
Acquire a Dragon Scale.
Reach Abaddon with no Fighters.
Reach Abaddon with a Follower in your party.
Defeat Abaddon.
Reach Abaddon with Thardoric of the Hammer.
Reach Abaddon in under 60 rounds.
Reach Abaddon with no Mages.
Deal 10 or more damage to a single unit with one attack.
Acquire Iliphar's Arbalest.
Defeat Simulae Prime.
Defeat King Fetterbite.
Win a battle in the first round.
Defeat the Reanimated Colossus.
Win a battle.
Reach Abaddon with Elder Gryx.
Win a battle with only your hero left alive.
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 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.