Thief is a 1982 computer game created by Bob Flanagan and published by Datamost. The game puts the player in control of a thief that must make his way through simple mazes in search of items to steal. Each level is populated by stocky, possibly robotic guards that converge on the player, and which the player must either shoot or evade. It shares some similarities to the 1980s arcade video game Berzerk. Source: Wikipedia, "http://en.wikipedia.org/wiki/Thief_%28Apple_II_game%29," available under the CC-BY-SA License.