ChipWits is a 1984 Robot simulation game for the Apple Macintosh, written by Doug Sharp and Mike Johnston, and published by BrainPower software. It was ported to the Apple II and Commodore 64. The player uses an iconic programming language to teach a virtual robot how to navigate various mazes of varying difficulty. The gameplay straddled the line between entertainment and programming education. The game was developed in MacFORTH, and later ported to the Apple II and Commodore 64. From 2006 to 2008, Mike Johnston and Doug Sharp worked on a new version of ChipWits, with playable betas available for download at ChipWits.com