Divinity Original Sin: Haunted Keep Expansion

In the Haunted Keep expansion, an old mage greets Origins at the entrance to a strange tower and tells the tale of a grave misfortune that cursed the place. Undead now roam the dark passageways, but somewhere within is a ritual that may end the curse.

First, the Origins must accept one of many hexes to survive the challenges of the keep where unnatural monstrosities lurk. Potions, weird science, and hexes greet them at every turn.

—description from the publisher