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