Full list of all 39 The Dungeon Beneath achievements.
The base game contains 30 achievements, and there are 4 DLC packs containing 9 achievements.
Deal 20 or more damage to a single unit with one attack.
Reach Abaddon with no Fighters.
Reach Abaddon in under 60 rounds.
Reach Abaddon with no Mages.
Reach Abaddon on New Game+.
Defeat The Mind Reaver.
Defeat Abaddon.
Defeat The Hand of Abaddon.
Defeat Simulae Prime.
Acquire Iliphar's Arbalest.
Win a battle in the first round.
Defeat Dungeon Boss Firis.
Acquire a Dragon Scale.
Defeat the Reanimated Colossus.
Win a battle with only your hero left alive.
Deal 10 or more damage to a single unit with one attack.
Defeat King Fetterbite.
Acquire a Searing Sign.
Win a battle.
Reach Abaddon with Thardoric of the Hammer.
Reach Abaddon with Eloa.
Reach Abaddon with Dominique Boutroux.
Reach Abaddon with Elder Gryx.
Reach Abaddon with Mariana.
Reach Abaddon with Taz'gyn.
Have 10 Armor on a single unit.
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.