"Penumbra: Black Plague" is a first-person survival horror game developed by Frictional Games. It is the second installment in the Penumbra series and was released in 2008. Players assume the role of Philip, who explores a mysterious underground complex while solving puzzles and avoiding terrifying creatures. The game emphasizes atmosphere and storytelling, immersing players in a dark and unsettling environment. The gameplay combines exploration, puzzle-solving, and stealth mechanics. Players must navigate through the eerie setting, using items and clues to progress while avoiding dangers. The game is known for its psychological horror elements, creating a tense experience that keeps players on edge throughout their journey.