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