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