Dark Castle is a 1986 platform game for Macintosh published by Silicon Beach Software, later published by Three-Sixty Pacific for other platforms. It was designed and illustrated by Mark Pierce and programmed by Jonathan Gay. In Dark Castle, a young hero named Duncan tries to make his way to the evil Black Knight, dodging objects as well as solving occasional puzzles.

A sequel, Beyond Dark Castle, was released in 1987. A second sequel, Return to Dark Castle, was announced in 2000, but it was not released until March 14, 2008.