Here is the full list of all 38 DUNGEON ENCOUNTERS achievements.
Unlock all achievements.
Chart every tile.
Chart 88,000 tiles.
Acquire all abilities.
Compile profiles on all fiends.
Chart 80,000 tiles.
Find and befriend all members of the Academy.
Chart 70,000 tiles.
Reach Floor 99.
Chart 60,000 tiles.
Chart 50,000 tiles.
Reach the Enshrouding Mists.
Deal more than 100,000 damage with a single attack.
Deal more than 50,000 damage with a single attack.
Deal more than 20,000 damage with a single attack.
Chart 40,000 tiles.
Acquire 30 abilities.
Deal more than 10,000 damage with a single attack.
Compile profiles on 75 fiends.
Reach Fading Twilight.
Reach the Glacial Tomb.
Reach Forgotten Glory.
Reach the Blasted Wastes.
Reach the Rift Beyond.
Deal more than 5,000 damage with a single attack.
Deal more than 3,000 damage with a single attack.
Chart 30,000 tiles.
Reach the Molten Crags.
Acquire 20 abilities.
Chart 20,000 tiles.
Compile profiles on 50 fiends.
Deal more than 1,000 damage with a single attack.
Reach the Undulating Sands.
Acquire 10 abilities.
Chart 10,000 tiles.
Compile profiles on 25 fiends.
Reach Paradise Lost.
Reach the Underworld.