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