Here is the full list of all 20 Dungeon Origins achievements.
Fulfill your revenge
Buy all expansions
Survive day 100
Defeat the New Hero
Successfully raid Dragonfall
Unlock a monster's last evolution
Defeat the Royal Guard
Defeat the Warlock
Store 500 gold
Survive day 60
Transmute essence into magic stone
Defeat the Archbishop
Have 5 raids in progress at the same time
Buy a Blacksmith
Unlock your first evolution
Defeat the Enslaved Troll
Survive day 30
Infuse a monster with magic
Defeat the Fake Hero.
Kill the thief