 It was developed and published by Riverhillsoft, the publisher of Japanese releases of the Neverhood series.Klaymen is featured as a secret fighter for the PlayStation game "BoomBots", also developed by The Neverhood, Inc.

On March 12, 2013, TenNapel announced that he had partnered with former "Neverhood" and "Earthworm Jim" artists/animators Ed Schofield and Mike Dietz of Pencil Test Studios to develop a "clay and stop-motion animated point and click adventure game".While stating that the game would not be a sequel to "The Neverhood", TenNapel reiterated that the game would consist of his unique art style and sense of humor, and have an original soundtrack by Terry Scott Taylor.