Here is the full list of all 69 Diehard Dungeon achievements.
Obtain Vision ability.
Complete Fading Light in under 3 minutes.
Escape the dungeon at Diehard rank, in Champion Mode, and defeat the Dungeon Master.
Obtain Attract ability.
Obtain Pierce ability.
Obtain Reflex ability.
Obtain Sense ability.
Survive 20 rooms of Survival
Attain Diehard rank.
Attain Legend rank.
Destroy 500 containers with fire.
Obtain Dash ability.
Use 20 Teleporters.
Obtain Lightfoot ability.
Obtain Kaboom ability.
Attain Champion rank.
Obtain Knives ability.
Defeat Evil Chest.
Destroy 20 chests.
Avoid opening 10 chests.
Defeat Giant Oaf.
Attain Hero rank.
Defeat Mr Illusion.
Attain Slayer rank.
Obtain Mithridate ability.
Attain Adept rank.
Defeat 200 enemies by setting them on fire.
Use 50 tokens.
Obtain Courage ability.
Defeat 2000 enemies.
Attain Valiant rank.
Attain Warrior rank.
Defeat Zombie Chest.
Destroy 1000 containers.
Achieve rank 10 in Mayhem.
Defeat Hive Mind.
Pickup 100 hearts.
Avoid picking up 20 hearts.
Attain Fighter rank.
Obtain Slash ability.
Obtain Repel ability.
Defeat Stumpy.
Obtain Iron Grip ability.
Escape the dungeon in Champion Mode.
Defeat the Dungeon Master.
Obtain Trigger Happy ability.
Have 20 tokens.
Obtain Scatter ability.
Escape the dungeon.
Open the gold chest.
Collect 10,000 treasure.
Obtain Forget-Me-Not ability.
Destroy 300 lights.
Obtain Voodoo ability.
Obtain Triple Shot ability.
Obtain Heartbreaker ability.
Obtain Looter ability.
The Companion Chest upgrades to its maximum level.
Obtain Houdini ability.
Obtain Toasty ability.
Obtain Fireproof ability.
Win a Trapdoor game.
Obtain Heavy Duty ability.