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