Dark Souls: Remastered

Everlasting Dragons once ruled over the world during the "Age of Ancients." A primordial fire known as the First Flame manifests in the world, establishing a distinction between life and death, and light and dark. A being known as Gwyn happens upon the First Flame and along with his allies use their new power to destroy the dragons and take control over the world, while the Furtive Pygmy is said to be forgotten, and thus begins the "Age of Fire."

Over time, as the First Flame begins to fade while humans rise in power, Gwyn sacrifices himself to prolong the Age of Fire. The main story takes place towards the end of this second Age of Fire, at which point humanity is said to be afflicted with an undead curse related to a symbol on their bodies known as the Darksign.

Those humans afflicted with the undead curse perpetually resurrect after death until they eventually lose their minds, a process referred to as "hollowing".