Here is the full list of all 23 Devious Dungeon achievements. It takes around 5-6 hours to unlock all of the achievements on Windows.
Collect 100 keys.
Resurrect more than 25 times.
Complete the game!
Defeat the Dragon Boss.
Defeat the Stone Golem Boss.
Defeat the Butcher Boss.
Play over 100 levels!
Destroy 500 crates.
Kill more than 500 enemies.
Defeat the Ancient Beholder Boss.
Defeat the Orc Chief Boss.
Read your first tome.
Spend more than 1500 coins.
Bought an amulet.
Receive a blessing from the Priest.
Bought a ring.
Bought a potion.
Bought some armor.
Bought a new weapon.
Destroy an arrow in mid-air.
Leveled up for the first time!
Completed the training level.
Checked the map screen.