What is "knightshift"

KnightShift, also known as Polanie II and Once Upon a Knight, is a real-time strategy and role-playing video game hybrid developed by Reality Pump Studios and released by Topware Interactive for the PC Windows and OS X in 2003. The game is a follow-up to 1996's Polanie. KnightShift (Director's Cut Special Edition) was released for Windows later in 2003.