DMA Design founder David Jones began developing "Walker" following the release of "Blood Money" in 1989. The inspiration for the game's mech originated in a sprite from "Lemmings" (1991) originally designed for "Blood Money". The graphics and animation for "Walker" were designed by Scott Johnston, who later worked on "Hired Guns" (1993). Johnston, a freelancer at the time, wrote a small program to correctly render the walker's head in position, which could then be altered in Deluxe Paint. In early 1990, Jones scrapped "Walker" because the design was not coming together, and began development on a new game called "Gore!"; this was soon scrapped. Following the completion of the Commodore 64 and TurboGrafx-16 ports of "Shadow of the Beast", Jones hired Ian Dunlop and Neill Glancy to continue working on "Walker"; Glancy redesigned the game. Raymond Usher wrote the game's soundtrack.