Here is the full list of all 15 bit Dungeon II achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
She rules an army of beasts in the Black Church, defeat The Yaldabaoth.
Face The Eater!
Slay the Fire Nob Glob.
Find an epic-quality weapon.
Destroy the Soul Collector.
You have died. You have all lost things. You can not take your possessions with you to the next incarnation.
Kill the king of Skeletons.
Kill a mini-boss.
Reach level ten.
Enter into the Dark World.
Free the ghost from her grave.
Slayed the Fiend.
Kill the leader of the Thief Kings, The Cursed Wizard!
Slay the Demiurge.
Tis this a demon?