Mafia (party game)
Dmitry Davidoff (, Dmitry Davydov) is usually said to have made the game. He says he first made the game in Spring 1987 at the Psychology department of Moscow State University. He made it to do psychology research and his job of teaching high school students. It got popular in other Soviet colleges and school in the 1990s. It also started to be played in some parts of Europe and the United States.