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