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.
Bought an amulet.
Bought a potion.
Defeat the Dragon Boss.
Complete the game!
Collect 100 keys.
Bought a ring.
Defeat the Stone Golem Boss.
Resurrect more than 25 times.
Defeat the Butcher Boss.
Destroy 500 crates.
Play over 100 levels!
Kill more than 500 enemies.
Defeat the Ancient Beholder Boss.
Receive a blessing from the Priest.
Defeat the Orc Chief Boss.
Bought some armor.
Spend more than 1500 coins.
Destroy an arrow in mid-air.
Read your first tome.
Bought a new weapon.
Leveled up for the first time!
Completed the training level.
Checked the map screen.