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