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