Dead of Darkness is a survival-horror action-adventure game set in 1985 England, where players take on the role of private investigator Miles Windham. Tasked with unraveling the mystery behind his daughter's death, Miles travels to Velvet Island, only to find the locals exhibiting bizarre and hostile behavior. The game intricately weaves a complex narrative featuring over 15 characters, each harboring dark secrets tied to the island's eerie atmosphere.

As players navigate this chilling world, they must contend with limited resources and a restricted inventory, making survival a constant challenge. The game also incorporates intense psychological elements, as encounters with relentless enemies can severely impact Miles' mental state, leading to distressing hallucinations. Players must employ their detective skills to search environments, inspect items, and decode clues to uncover hidden paths and secrets, ensuring that every decision counts in this harrowing adventure.