Anthony E. Pratt manufacture it. It was Waddingtons who renamed the game Cluedo (a combination of "Clue" and ""Ludo"", a Latin word meaning "I play"). But material shortages in post-war Britain meant the game did not go into production until 1949. Pratt was granted patent GB586817 'Improvements in Board Games' on 1 April 1947. After the end of the Second World War Pratt entered the British Civil Service working for the Ministry of Labour helping demobbed servicemen and women to return to peacetime work. In 1953, four years after Cluedo first went on sale, Waddingtons told Pratt that the game was not selling
Mystery Mansion (video game) Mystery Mansion (video game) Mystery Mansion is the name of a text-based adventure game written in 1978-1981 by Bill Wolpert while at the Naval Undersea Warfare Center in Keyport, Washington. It originally ran only on the HP HP-1000 minicomputer on the RTE (Real Time Executive) operating system, but was later ported by persons unknown to run under MPE (Multiprocessing Executive) on the HP-3000. Although the development dates make it contemporaneous with other seminal interactive fiction games such as Adventure and Dungeon (which went on to become the Zork series from Infocom), it remains relatively unknown due to the specialized computers