Paradox Interactive has released a trailer for Penumbra: Requiem, the latest game developed by Frictional Games which is now available exclusively via download on GamersGate and Direct2Drive. Penumbra: Requiem is an expansion which will tie up loose ends from previous installments and as Philip progresses he will encounter various characters from his past. Penumbra: Requiem delves deeper into the world of the Tuurngait infection and personalities from the previous two games, Overture and Black Plague.