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