Wolfenstein Castle:1981* * There are four books.
At present, Wolfenstein Castle 4 (English Wolfenstein) in Wolfenstein Castle is the previous generation that returned to Wolfenstein Castle. After developing Wolfenstein Castle 4, the production company: ID software/Raven software was developed for about 1 year and then returned to Wolfenstein Castle. Do you understand?
As for the latest version, it should be "Return to Wolfenstein Castle-Second Gate-Vanguard-Go Deep into the Enemy" (these three versions). You'd better play Return to Wolfenstein Castle first. It's very classic.