Here is the full list of all 13 NECROPOLIS: A Diabolical Dungeon Delve achievements.
Traverse down a Level without using an elevator.
Escape the Necropolis.
Obtain fifteen thousand gems.
Recover your first Codex.
Die for the first time.
Survive longer than your average dungeon delver.
Eat or drink an unidentified item.
Die from a trap.
Find and equip a new suit of armor.
Craft your first item.
Recover all Codexes.
Slay an enemy using a power attack.
Learn to craft everything.