https://www.polygon.com/2018/7/28/17625056/vampyr-new-difficulty-modes-update

Vampyr, which launched at the beginning of June, will rejuvenate its blood-sucking habits with a “story mode” setting and a hard-difficulty mode later this summer, Dontnod Entertainment announced yesterday.

The open-world game, a tortured journey of an undead doctor afflicted by the thirst for blood, has not had variable difficulty or different modes to this point. Hard mode increases the challenge and slows player progression by awarding fewer XP for defeating foes. That means players will have to, uh, “embrace” innocent NPCs. This is a big part of the moral conflict the game presents.