Chase is a turn-based computer game in which players are tasked with escaping from robots programmed to pursue and kill them.
The original author of the game remains unknown, but it is highly likely it started on the DTSS system at Dartmouth College in the early 1970s.
In earlier versions derived from Chase!, there are a number of deadly objects on the map that will kill either the robots or the player.
In either case, the player is attempting to move in such a way to cause the robots to collide with each other or stationary obstacles.
A few versions also add a tank, which is not destroyed when colliding with other objects and acts similarly to the other robots.
[citation needed] The Jan-Feb 1976 issue of Creative Computing contains a version of this original code ported to the Honeywell 6000 series by Bill Cotter.
[4][non-primary source needed] It was also ported to the PLATO system's TUTOR language on the MODCOMP IV as HiVolts.
A real time version of Chase called Logan was ported to the HP-2000 by Jim Burnes at St. Louis University High School.
[citation needed] One such version appears in Announcing: Computer Games for the TRS-80, which added another enemy, the tank, and limited the player to two teleports per match.
was also sold by Sublogic as early as 1982, which added a real-time option that caused the robots to move even if the user didn't.
The game was played in real time; as the player pondered his move, the robots would continue converging toward him.