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