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