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