https://www.pcgamer.com/the-evil-within-2-adds-new-difficulty-mode-and-enables-cheats/

Excellent survival horror sequel The Evil Within 2 has added a new nightmarish difficulty mode and enabled cheats—but only if you have a Bethesda.net account.

Anyone that signs up for an account, or links to an existing one, will get the Akumu difficulty level as well as access to cheats such as invincibility, one-shot kills and infinite stamina.