Here is the full list of all 17 Dungeon Hearts achievements.
Defeat The Dark One on Hard difficulty.
Use all four Hero's final Skill in the same battle.
Reach Level 60 with any Hero.
Finish the game in 40 minutes or less.
Finish the game without using any Skills.
Finish the game with at least one Level 1 Hero.
Unlock 40 Enemies in the Bestiary.
Defeat The Dark One.
Finish the game without any Hero getting knocked out.
Reach battle 7.
Achieve an attack multiplier of x7 or more in a single attack.
Unlock 20 Enemies in the Bestiary.
Use all four Heroes in a single attack.
Reach Level 20 with any Hero.
Reach battle 15.
Complete the tutorial.
Unlock 10 Enemies in the Bestiary.