Top Secret: Cypher Mission - PC Powerful and widely-recognized setting - mid-1980&#8217;s U.S.S.R. Strong espionage/stealth gameplay including gadgets like the x-ray camera. Interactive non-linear world: Accomplish objectives in multiple ways - find hidden paths, combine in-game elements to create weapons and traps, or silently eliminate opponents. Set in real Soviet locations, and is built around locations such as Lenin&#8217;s Mausoleum, Chernobyl and the KGB&#8217;s notorious Lubyanka prison.