Mafia (also known as Werewolf, Assassin, Witch Hunt, Palermo Nights or Pirates) is a party game created in the USSR by Dimitry Davidoff in 1986, modelling a battle between an informed minority (the mafia) and an uninformed majority (the townspeople). Mafia was called one of the 50 most historically and culturally significant games published since 1800 by about.com.

Mafia Assistant implements the basic Mafia gameplay, as well as some common variations (assassin, guardian, traitor, undercover, etc.). It also includes a new two-handed mode allowing one player to play two roles.

This application could be used to help the Judge (the Game Narrator) moderate the game.

Mafia party game on wikipedia: http://en.wikipedia.org/wiki/Mafia_(party_game)

杀人纸牌游戏，又称杀手游戏、黑手党（Mafia）、天黑请闭眼、狼人杀等等，是一种多人策略类游戏，一般由8到20人组成。杀人纸牌游戏拥有多种角色，规则也有多种变体。

《天黑请闭眼》法官助手app实现了杀手游戏的基本规则，以及若干常见的扩展角色（暗杀，守护天使，叛徒，暗警等），并包含了一种独创的双手杀人模式，允许一个玩家在游戏中同时扮演两个角色。该app可以帮助法官主持游戏的进行，进行自动游戏判定。

Wikipedia上的“杀手游戏”词条：http://zh.wikipedia.org/wiki/%E6%9D%80%E6%89%8B_(%E6%B8%B8%E6%88%8F)