The Penumbra Series is a collection of first-person survival horror video games developed by Frictional Games. It includes titles like Penumbra: Overture, Penumbra: Black Plague, and Penumbra: Requiem, which are known for their immersive storytelling and atmospheric gameplay. Players navigate dark environments, solve puzzles, and encounter terrifying creatures, all while uncovering a deep narrative. Set in eerie locations, the series emphasizes psychological horror and player choice. The unique physics-based interaction system allows players to manipulate objects in the environment, enhancing the sense of realism and tension. The Penumbra Series has garnered a dedicated fanbase and is considered a precursor to the acclaimed Amnesia series.