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