Here is the full list of all 61 Dungeons 4 achievements.
Complete “Tanos' Crusade Against Thalya” on any Difficulty level.
Complete “Tanos' Crusade Against Thalya” using nothing but Undead Creatures.
Create 5 Ghost Heroes in “Tanos' Crusade Against Thalya.”
Complete “The Cathedral of Light” on any Difficulty level.
Destroy all of the Cages and all of the Hero buildings in “The Cathedral of Light”.
Free the Naga in “The Cathedral of Light”.
Complete “… like son” on any Difficulty level.
Have Gorgu destroy 50 Heroes in “… like son”.
Complete “… so the Son” without researching Potions or Spells.
Earn a reward in “The Ascent” through hard work.
Complete “The Big Eaty” on any Difficulty level.
Feed Gorgu more Heroes than necessary in “The Big Eaty”.
Complete “The Ascent” on any Difficulty level.
Expose no Unit to the Storm in “The Ascent.”
Use the Magic Tower to kill 60 Heroes in “Heroes’ Gorge”.
Use Dynamite to destroy 10 Heroes in “The Ascent”.
Complete “Heroes’ Gorge” on any Difficulty level.
Intercept all Shipments in “Heroes’ Gorge”.
Complete “Bad Elves Go Everywhere” on any Difficulty level.
Raise Thalya to 3 level or higher in “Bad Elves Go Everywhere”.
Defeat the Unicorn in “Bad Elves Go Everywhere” within 30 minutes.
Complete “The Plains of Strothalm” on any Difficulty level.
Sacrifice 6 different things in “The Plains of Strothalm”.
Own 60 Minions at the same time in “The Plains of Strothalm”.
Complete “The Hellwoods” on any Difficulty level.
Kill 20 Heroes with Spells in “The Hellwoods”.
Own an Arcanium with at least 100% Efficiency in “The Hellwoods”.
Complete “Hammer Time, Round Two” on any Difficulty level.
Kill 10 Heroes with Traps in “Hammer Time, Round Two”.
Have at least 10 Creatures in “Hammer Time, Round Two”.
Complete “The Last Stand” on any Difficulty level.
Complete “The Last Stand” without letting Thalya die.
Kill 10 Heroes in “The Last Stand” while Thalya's Fury is active.
Keep Gorgu from getting hurt in “The Big Eaty”.
Complete “All’s Well That Ends Evil” on any Difficulty level.
Tanos cannot be allowed to collect more than 6000 Evilness in “All’s Well That Ends Evil”.
Torture at least 20 Heroes in “All’s Well That Ends Evil”.
Complete “The Duel” on any Difficulty level.
Don't let Gorgu's Life Energy drop below 70% in “The Duel”.
Defeat all of the Good Beings on the Overworld in “The Duel”.
Complete “If Looks Could Kill” on any Difficulty level.
Use the Mirror a maximum of 3 times in “If Looks Could Kill”.
Not one Room Tile may be destroyed by the Laser Eyes in “If Looks Could Kill”.
Complete “The Finitude Drill” on any Difficulty level.
Sabotage the Drill in “The Finitude Drill” by destroying the three cooling pumps.
The Dungeonheart cannot be allowed to take any damage in “The Finitude Drill”.
Complete “Doom Hill” on any Difficulty level.
Destroy 10 Lavalumps in “Doom Hill” using the Charmanor relic.
All Hero buildings must be destroyed at the end of “Doom Hill”.
Complete “Raiders of the Lost Stone” on any Difficulty level.
Use Brimstone to trigger 10 explosions in “Raiders of the Lost Stone”.
Not a single Mana Shipment may reach its destination in “Raiders of the Lost Stone”.
Complete “The Rune Sockets of Finitude (Part 1)” on any Difficulty level.
Advance all Faction Research to Level 10 in “The Rune Sockets of Finitude (Part 1)”
Train 5 Units to above Level 10 in “The Rune Sockets of Finitude (Part 1)”
Complete “The Rune Sockets of Finitude (Part 2)” on any Difficulty level.
Use the Healing Stone to heal 10000 Damage in “The Rune Sockets of Finitude (Part 2)”
No Stones can be allowed to take any Damage in “The Rune Sockets of Finitude (Part 2)”.
Complete “The Last Stand – This Time For Real!” on any Difficulty level.
Never call on Tristan for help in “The Last Stand – This Time For Real!”.
Destroy all Hero buildings in “The Last Stand – This Time For Real!”.