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